An Integrated OLED Substrate for Low-Cost and...

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An Integrated OLED Substrate for Low-Cost and Enhanced Light Extraction Qibing Pei Department of Materials Science and Engineering Henry Samuli School of Engineering and Applied Science University of California, Los Angeles E-mail: [email protected]

Transcript of An Integrated OLED Substrate for Low-Cost and...

Page 1: An Integrated OLED Substrate for Low-Cost and …energy.gov/sites/prod/files/2016/02/f29/pei_oledsubstrates_raleigh... · An Integrated OLED Substrate for Low-Cost and Enhanced Light

An Integrated OLED Substrate forLow-Cost and Enhanced Light Extraction

Qibing PeiDepartment of Materials Science and Engineering

Henry Samuli School of Engineering and Applied ScienceUniversity of California Los AngelesE-mail qpeiseasuclaedu

ITO

Integrated Substrate

Emissive HTL HIL

EIL ETL Al Ca (Cathode)

Glass ITO (anode)

Glass

Soft MaterialsResearch Lab

ITOglass vs Integrated Plastic Substrate

ITO and Organic Mode (~50)

Al Organic ITO

Glass

Glass Mode (~30)

Escape Cone Air Mode (~20-25)

Al Organic

Air Mode (up to 60)

AgNW network Nanoparticles Polymer Substrate

Soft MaterialsResearch Lab

ITOglass Replacements

ITOPET Conducting polymers (PEDOT) Single-wall carbon nanotubes (SWCNT) Graphene Ultrathin metal Metal grid

Soft Materials Research Lab

Silver nanowires

Glass or PET

L Hu H Kim J Lee P Peumans Yi Cui ACS Nano 4 2955 2010

Fabricating an Integrated Plastic Substrate

bull Composite materials are deposited via a solution based low temperature process

bull Conventional coaters may be used bull Process can potentially be scaled up on a roll-to-roll production line

AgNWs PolyacrylateAcrylate

GlassGlass Glass

Soft Materials Research Lab

Integrated Plastic Substrate vs Competing Substrates

Property ITOGlass AgNWPET Integrated Substrate

Ohmsq ~10 ~10 5~10 Substrate bonding Strong Weak (requires a

binder) Strong

Roughness lt2 nm High lt2 nm

EQE 20-25 Comparable to ITOglass ~40

Mechanical flexibility

Thick and brittle Thin and flexible Thin and flexible

Soft MaterialsResearch Lab

2D FDTD Simulation of Light Extraction Efficiency

Soft MaterialsResearch Lab

OLED Performance

Soft Materials Research Lab

EQE ~305

White Polymer Al CsF

Composite Substrate PEDOTPSS

Light Extraction Enhancement 20-25X

Integrated Substrate PEDOTPSS Yellow + Blue Al CsF

140 Device on ITOglass Device on Integrated Substrate

Power Efficacy (lmW)

100 1000 10000

Current Efficiency (cdA) 140

12010080604020

Device on ITOglass Device on Integrated Substrate

100 1000 10000

120100806040200 0

Luminance (cdm2) Luminance (cdm2)

The efficiencies of white OLEDs at 1000 cdm2 luminance are Soft Materials 120 cdA 40 EQE and 110 lmW the devices (CRI~55) Research Lab

Wider Viewing Angle

OLEDs viewed from the Al cathode side

Soft Materials ITOGlass Integrated SubstrateResearch Lab

Preliminary Results under the OLED Testing Program

bull Most devices were shorted bull One sample showed 27X enhancementSoft Materials

Research Lab

Challenges and solutions for integrated plastic substrate

bull Mechanical flexibility does not fit well in the current fabrication line designed for rigid glass substrate

Soft MaterialsResearch Lab

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer substrate may not be high enough (softening warping etc)

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network at specified temperature for 30 min

Soft Materials Research Lab

Treated AgNW Network 300 oC for 30 min

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer for the substrate may not be high enough

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network Treated AgNW Network 155 mAcm2 for 1 hour 155 mAcm2 for 1 hour

Soft MaterialsResearch Lab

Lifetime is longer than on ITOglass

Initial luminance 5000 cdm2

Soft MaterialsResearch Lab

Integrated substrates incorporating barrier film or glass

3M Barrier Film or Glass

Soft Materials Research Lab

Integrated Plastic Substrate or Glass Substrate

Substrate Sheet Glass

Flexible Glass Plastic Plastic w Barrier

Coatings Dimensional stability Best Medium Low Low

Barrier property High High Low Medium

Cost Low Low High Compatibility with R2R OLED manufacture

No Work in progress

Yes Yes

Soft MaterialsResearch Lab

Conclusion and Perspective

bull An integrated plastic substrate has to tailor made to fit with the OLED fabrication process

bull Our integrate plastic substrate is designed to replace ITOglass internal and external light extraction structures

bull can be produced at dramatically lower cost bull is compatible with solution-based process vacuum thermal deposition and 250 oC annealing

bull could enable R2R OLED panel manufacturing

Soft MaterialsResearch Lab

  • An Integrated OLED Substrate forLow-Cost and Enhanced Light Extraction
  • Integrated Substrate
  • ITOglass vs Integrated Plastic Substrate
  • ITOglass Replacements
  • Fabricating an Integrated Plastic Substrate
  • Integrated Plastic Substrate vs Competing Substrates
  • 2D FDTD Simulation of Light Extraction Efficiency
  • OLED Performance
  • Light Extraction Enhancement 20-25X
  • Wider Viewing Angle
  • Preliminary Results under the OLED Testing Program
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Lifetime is longer than on ITOglass
  • Integrated substrates incorporating barrier film or glass
  • Integrated Plastic Substrate or Glass Substrate
  • Conclusion and Perspective
Page 2: An Integrated OLED Substrate for Low-Cost and …energy.gov/sites/prod/files/2016/02/f29/pei_oledsubstrates_raleigh... · An Integrated OLED Substrate for Low-Cost and Enhanced Light

ITO

Integrated Substrate

Emissive HTL HIL

EIL ETL Al Ca (Cathode)

Glass ITO (anode)

Glass

Soft MaterialsResearch Lab

ITOglass vs Integrated Plastic Substrate

ITO and Organic Mode (~50)

Al Organic ITO

Glass

Glass Mode (~30)

Escape Cone Air Mode (~20-25)

Al Organic

Air Mode (up to 60)

AgNW network Nanoparticles Polymer Substrate

Soft MaterialsResearch Lab

ITOglass Replacements

ITOPET Conducting polymers (PEDOT) Single-wall carbon nanotubes (SWCNT) Graphene Ultrathin metal Metal grid

Soft Materials Research Lab

Silver nanowires

Glass or PET

L Hu H Kim J Lee P Peumans Yi Cui ACS Nano 4 2955 2010

Fabricating an Integrated Plastic Substrate

bull Composite materials are deposited via a solution based low temperature process

bull Conventional coaters may be used bull Process can potentially be scaled up on a roll-to-roll production line

AgNWs PolyacrylateAcrylate

GlassGlass Glass

Soft Materials Research Lab

Integrated Plastic Substrate vs Competing Substrates

Property ITOGlass AgNWPET Integrated Substrate

Ohmsq ~10 ~10 5~10 Substrate bonding Strong Weak (requires a

binder) Strong

Roughness lt2 nm High lt2 nm

EQE 20-25 Comparable to ITOglass ~40

Mechanical flexibility

Thick and brittle Thin and flexible Thin and flexible

Soft MaterialsResearch Lab

2D FDTD Simulation of Light Extraction Efficiency

Soft MaterialsResearch Lab

OLED Performance

Soft Materials Research Lab

EQE ~305

White Polymer Al CsF

Composite Substrate PEDOTPSS

Light Extraction Enhancement 20-25X

Integrated Substrate PEDOTPSS Yellow + Blue Al CsF

140 Device on ITOglass Device on Integrated Substrate

Power Efficacy (lmW)

100 1000 10000

Current Efficiency (cdA) 140

12010080604020

Device on ITOglass Device on Integrated Substrate

100 1000 10000

120100806040200 0

Luminance (cdm2) Luminance (cdm2)

The efficiencies of white OLEDs at 1000 cdm2 luminance are Soft Materials 120 cdA 40 EQE and 110 lmW the devices (CRI~55) Research Lab

Wider Viewing Angle

OLEDs viewed from the Al cathode side

Soft Materials ITOGlass Integrated SubstrateResearch Lab

Preliminary Results under the OLED Testing Program

bull Most devices were shorted bull One sample showed 27X enhancementSoft Materials

Research Lab

Challenges and solutions for integrated plastic substrate

bull Mechanical flexibility does not fit well in the current fabrication line designed for rigid glass substrate

Soft MaterialsResearch Lab

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer substrate may not be high enough (softening warping etc)

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network at specified temperature for 30 min

Soft Materials Research Lab

Treated AgNW Network 300 oC for 30 min

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer for the substrate may not be high enough

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network Treated AgNW Network 155 mAcm2 for 1 hour 155 mAcm2 for 1 hour

Soft MaterialsResearch Lab

Lifetime is longer than on ITOglass

Initial luminance 5000 cdm2

Soft MaterialsResearch Lab

Integrated substrates incorporating barrier film or glass

3M Barrier Film or Glass

Soft Materials Research Lab

Integrated Plastic Substrate or Glass Substrate

Substrate Sheet Glass

Flexible Glass Plastic Plastic w Barrier

Coatings Dimensional stability Best Medium Low Low

Barrier property High High Low Medium

Cost Low Low High Compatibility with R2R OLED manufacture

No Work in progress

Yes Yes

Soft MaterialsResearch Lab

Conclusion and Perspective

bull An integrated plastic substrate has to tailor made to fit with the OLED fabrication process

bull Our integrate plastic substrate is designed to replace ITOglass internal and external light extraction structures

bull can be produced at dramatically lower cost bull is compatible with solution-based process vacuum thermal deposition and 250 oC annealing

bull could enable R2R OLED panel manufacturing

Soft MaterialsResearch Lab

  • An Integrated OLED Substrate forLow-Cost and Enhanced Light Extraction
  • Integrated Substrate
  • ITOglass vs Integrated Plastic Substrate
  • ITOglass Replacements
  • Fabricating an Integrated Plastic Substrate
  • Integrated Plastic Substrate vs Competing Substrates
  • 2D FDTD Simulation of Light Extraction Efficiency
  • OLED Performance
  • Light Extraction Enhancement 20-25X
  • Wider Viewing Angle
  • Preliminary Results under the OLED Testing Program
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Lifetime is longer than on ITOglass
  • Integrated substrates incorporating barrier film or glass
  • Integrated Plastic Substrate or Glass Substrate
  • Conclusion and Perspective
Page 3: An Integrated OLED Substrate for Low-Cost and …energy.gov/sites/prod/files/2016/02/f29/pei_oledsubstrates_raleigh... · An Integrated OLED Substrate for Low-Cost and Enhanced Light

ITOglass vs Integrated Plastic Substrate

ITO and Organic Mode (~50)

Al Organic ITO

Glass

Glass Mode (~30)

Escape Cone Air Mode (~20-25)

Al Organic

Air Mode (up to 60)

AgNW network Nanoparticles Polymer Substrate

Soft MaterialsResearch Lab

ITOglass Replacements

ITOPET Conducting polymers (PEDOT) Single-wall carbon nanotubes (SWCNT) Graphene Ultrathin metal Metal grid

Soft Materials Research Lab

Silver nanowires

Glass or PET

L Hu H Kim J Lee P Peumans Yi Cui ACS Nano 4 2955 2010

Fabricating an Integrated Plastic Substrate

bull Composite materials are deposited via a solution based low temperature process

bull Conventional coaters may be used bull Process can potentially be scaled up on a roll-to-roll production line

AgNWs PolyacrylateAcrylate

GlassGlass Glass

Soft Materials Research Lab

Integrated Plastic Substrate vs Competing Substrates

Property ITOGlass AgNWPET Integrated Substrate

Ohmsq ~10 ~10 5~10 Substrate bonding Strong Weak (requires a

binder) Strong

Roughness lt2 nm High lt2 nm

EQE 20-25 Comparable to ITOglass ~40

Mechanical flexibility

Thick and brittle Thin and flexible Thin and flexible

Soft MaterialsResearch Lab

2D FDTD Simulation of Light Extraction Efficiency

Soft MaterialsResearch Lab

OLED Performance

Soft Materials Research Lab

EQE ~305

White Polymer Al CsF

Composite Substrate PEDOTPSS

Light Extraction Enhancement 20-25X

Integrated Substrate PEDOTPSS Yellow + Blue Al CsF

140 Device on ITOglass Device on Integrated Substrate

Power Efficacy (lmW)

100 1000 10000

Current Efficiency (cdA) 140

12010080604020

Device on ITOglass Device on Integrated Substrate

100 1000 10000

120100806040200 0

Luminance (cdm2) Luminance (cdm2)

The efficiencies of white OLEDs at 1000 cdm2 luminance are Soft Materials 120 cdA 40 EQE and 110 lmW the devices (CRI~55) Research Lab

Wider Viewing Angle

OLEDs viewed from the Al cathode side

Soft Materials ITOGlass Integrated SubstrateResearch Lab

Preliminary Results under the OLED Testing Program

bull Most devices were shorted bull One sample showed 27X enhancementSoft Materials

Research Lab

Challenges and solutions for integrated plastic substrate

bull Mechanical flexibility does not fit well in the current fabrication line designed for rigid glass substrate

Soft MaterialsResearch Lab

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer substrate may not be high enough (softening warping etc)

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network at specified temperature for 30 min

Soft Materials Research Lab

Treated AgNW Network 300 oC for 30 min

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer for the substrate may not be high enough

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network Treated AgNW Network 155 mAcm2 for 1 hour 155 mAcm2 for 1 hour

Soft MaterialsResearch Lab

Lifetime is longer than on ITOglass

Initial luminance 5000 cdm2

Soft MaterialsResearch Lab

Integrated substrates incorporating barrier film or glass

3M Barrier Film or Glass

Soft Materials Research Lab

Integrated Plastic Substrate or Glass Substrate

Substrate Sheet Glass

Flexible Glass Plastic Plastic w Barrier

Coatings Dimensional stability Best Medium Low Low

Barrier property High High Low Medium

Cost Low Low High Compatibility with R2R OLED manufacture

No Work in progress

Yes Yes

Soft MaterialsResearch Lab

Conclusion and Perspective

bull An integrated plastic substrate has to tailor made to fit with the OLED fabrication process

bull Our integrate plastic substrate is designed to replace ITOglass internal and external light extraction structures

bull can be produced at dramatically lower cost bull is compatible with solution-based process vacuum thermal deposition and 250 oC annealing

bull could enable R2R OLED panel manufacturing

Soft MaterialsResearch Lab

  • An Integrated OLED Substrate forLow-Cost and Enhanced Light Extraction
  • Integrated Substrate
  • ITOglass vs Integrated Plastic Substrate
  • ITOglass Replacements
  • Fabricating an Integrated Plastic Substrate
  • Integrated Plastic Substrate vs Competing Substrates
  • 2D FDTD Simulation of Light Extraction Efficiency
  • OLED Performance
  • Light Extraction Enhancement 20-25X
  • Wider Viewing Angle
  • Preliminary Results under the OLED Testing Program
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Lifetime is longer than on ITOglass
  • Integrated substrates incorporating barrier film or glass
  • Integrated Plastic Substrate or Glass Substrate
  • Conclusion and Perspective
Page 4: An Integrated OLED Substrate for Low-Cost and …energy.gov/sites/prod/files/2016/02/f29/pei_oledsubstrates_raleigh... · An Integrated OLED Substrate for Low-Cost and Enhanced Light

ITOglass Replacements

ITOPET Conducting polymers (PEDOT) Single-wall carbon nanotubes (SWCNT) Graphene Ultrathin metal Metal grid

Soft Materials Research Lab

Silver nanowires

Glass or PET

L Hu H Kim J Lee P Peumans Yi Cui ACS Nano 4 2955 2010

Fabricating an Integrated Plastic Substrate

bull Composite materials are deposited via a solution based low temperature process

bull Conventional coaters may be used bull Process can potentially be scaled up on a roll-to-roll production line

AgNWs PolyacrylateAcrylate

GlassGlass Glass

Soft Materials Research Lab

Integrated Plastic Substrate vs Competing Substrates

Property ITOGlass AgNWPET Integrated Substrate

Ohmsq ~10 ~10 5~10 Substrate bonding Strong Weak (requires a

binder) Strong

Roughness lt2 nm High lt2 nm

EQE 20-25 Comparable to ITOglass ~40

Mechanical flexibility

Thick and brittle Thin and flexible Thin and flexible

Soft MaterialsResearch Lab

2D FDTD Simulation of Light Extraction Efficiency

Soft MaterialsResearch Lab

OLED Performance

Soft Materials Research Lab

EQE ~305

White Polymer Al CsF

Composite Substrate PEDOTPSS

Light Extraction Enhancement 20-25X

Integrated Substrate PEDOTPSS Yellow + Blue Al CsF

140 Device on ITOglass Device on Integrated Substrate

Power Efficacy (lmW)

100 1000 10000

Current Efficiency (cdA) 140

12010080604020

Device on ITOglass Device on Integrated Substrate

100 1000 10000

120100806040200 0

Luminance (cdm2) Luminance (cdm2)

The efficiencies of white OLEDs at 1000 cdm2 luminance are Soft Materials 120 cdA 40 EQE and 110 lmW the devices (CRI~55) Research Lab

Wider Viewing Angle

OLEDs viewed from the Al cathode side

Soft Materials ITOGlass Integrated SubstrateResearch Lab

Preliminary Results under the OLED Testing Program

bull Most devices were shorted bull One sample showed 27X enhancementSoft Materials

Research Lab

Challenges and solutions for integrated plastic substrate

bull Mechanical flexibility does not fit well in the current fabrication line designed for rigid glass substrate

Soft MaterialsResearch Lab

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer substrate may not be high enough (softening warping etc)

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network at specified temperature for 30 min

Soft Materials Research Lab

Treated AgNW Network 300 oC for 30 min

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer for the substrate may not be high enough

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network Treated AgNW Network 155 mAcm2 for 1 hour 155 mAcm2 for 1 hour

Soft MaterialsResearch Lab

Lifetime is longer than on ITOglass

Initial luminance 5000 cdm2

Soft MaterialsResearch Lab

Integrated substrates incorporating barrier film or glass

3M Barrier Film or Glass

Soft Materials Research Lab

Integrated Plastic Substrate or Glass Substrate

Substrate Sheet Glass

Flexible Glass Plastic Plastic w Barrier

Coatings Dimensional stability Best Medium Low Low

Barrier property High High Low Medium

Cost Low Low High Compatibility with R2R OLED manufacture

No Work in progress

Yes Yes

Soft MaterialsResearch Lab

Conclusion and Perspective

bull An integrated plastic substrate has to tailor made to fit with the OLED fabrication process

bull Our integrate plastic substrate is designed to replace ITOglass internal and external light extraction structures

bull can be produced at dramatically lower cost bull is compatible with solution-based process vacuum thermal deposition and 250 oC annealing

bull could enable R2R OLED panel manufacturing

Soft MaterialsResearch Lab

  • An Integrated OLED Substrate forLow-Cost and Enhanced Light Extraction
  • Integrated Substrate
  • ITOglass vs Integrated Plastic Substrate
  • ITOglass Replacements
  • Fabricating an Integrated Plastic Substrate
  • Integrated Plastic Substrate vs Competing Substrates
  • 2D FDTD Simulation of Light Extraction Efficiency
  • OLED Performance
  • Light Extraction Enhancement 20-25X
  • Wider Viewing Angle
  • Preliminary Results under the OLED Testing Program
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Lifetime is longer than on ITOglass
  • Integrated substrates incorporating barrier film or glass
  • Integrated Plastic Substrate or Glass Substrate
  • Conclusion and Perspective
Page 5: An Integrated OLED Substrate for Low-Cost and …energy.gov/sites/prod/files/2016/02/f29/pei_oledsubstrates_raleigh... · An Integrated OLED Substrate for Low-Cost and Enhanced Light

Fabricating an Integrated Plastic Substrate

bull Composite materials are deposited via a solution based low temperature process

bull Conventional coaters may be used bull Process can potentially be scaled up on a roll-to-roll production line

AgNWs PolyacrylateAcrylate

GlassGlass Glass

Soft Materials Research Lab

Integrated Plastic Substrate vs Competing Substrates

Property ITOGlass AgNWPET Integrated Substrate

Ohmsq ~10 ~10 5~10 Substrate bonding Strong Weak (requires a

binder) Strong

Roughness lt2 nm High lt2 nm

EQE 20-25 Comparable to ITOglass ~40

Mechanical flexibility

Thick and brittle Thin and flexible Thin and flexible

Soft MaterialsResearch Lab

2D FDTD Simulation of Light Extraction Efficiency

Soft MaterialsResearch Lab

OLED Performance

Soft Materials Research Lab

EQE ~305

White Polymer Al CsF

Composite Substrate PEDOTPSS

Light Extraction Enhancement 20-25X

Integrated Substrate PEDOTPSS Yellow + Blue Al CsF

140 Device on ITOglass Device on Integrated Substrate

Power Efficacy (lmW)

100 1000 10000

Current Efficiency (cdA) 140

12010080604020

Device on ITOglass Device on Integrated Substrate

100 1000 10000

120100806040200 0

Luminance (cdm2) Luminance (cdm2)

The efficiencies of white OLEDs at 1000 cdm2 luminance are Soft Materials 120 cdA 40 EQE and 110 lmW the devices (CRI~55) Research Lab

Wider Viewing Angle

OLEDs viewed from the Al cathode side

Soft Materials ITOGlass Integrated SubstrateResearch Lab

Preliminary Results under the OLED Testing Program

bull Most devices were shorted bull One sample showed 27X enhancementSoft Materials

Research Lab

Challenges and solutions for integrated plastic substrate

bull Mechanical flexibility does not fit well in the current fabrication line designed for rigid glass substrate

Soft MaterialsResearch Lab

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer substrate may not be high enough (softening warping etc)

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network at specified temperature for 30 min

Soft Materials Research Lab

Treated AgNW Network 300 oC for 30 min

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer for the substrate may not be high enough

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network Treated AgNW Network 155 mAcm2 for 1 hour 155 mAcm2 for 1 hour

Soft MaterialsResearch Lab

Lifetime is longer than on ITOglass

Initial luminance 5000 cdm2

Soft MaterialsResearch Lab

Integrated substrates incorporating barrier film or glass

3M Barrier Film or Glass

Soft Materials Research Lab

Integrated Plastic Substrate or Glass Substrate

Substrate Sheet Glass

Flexible Glass Plastic Plastic w Barrier

Coatings Dimensional stability Best Medium Low Low

Barrier property High High Low Medium

Cost Low Low High Compatibility with R2R OLED manufacture

No Work in progress

Yes Yes

Soft MaterialsResearch Lab

Conclusion and Perspective

bull An integrated plastic substrate has to tailor made to fit with the OLED fabrication process

bull Our integrate plastic substrate is designed to replace ITOglass internal and external light extraction structures

bull can be produced at dramatically lower cost bull is compatible with solution-based process vacuum thermal deposition and 250 oC annealing

bull could enable R2R OLED panel manufacturing

Soft MaterialsResearch Lab

  • An Integrated OLED Substrate forLow-Cost and Enhanced Light Extraction
  • Integrated Substrate
  • ITOglass vs Integrated Plastic Substrate
  • ITOglass Replacements
  • Fabricating an Integrated Plastic Substrate
  • Integrated Plastic Substrate vs Competing Substrates
  • 2D FDTD Simulation of Light Extraction Efficiency
  • OLED Performance
  • Light Extraction Enhancement 20-25X
  • Wider Viewing Angle
  • Preliminary Results under the OLED Testing Program
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Lifetime is longer than on ITOglass
  • Integrated substrates incorporating barrier film or glass
  • Integrated Plastic Substrate or Glass Substrate
  • Conclusion and Perspective
Page 6: An Integrated OLED Substrate for Low-Cost and …energy.gov/sites/prod/files/2016/02/f29/pei_oledsubstrates_raleigh... · An Integrated OLED Substrate for Low-Cost and Enhanced Light

Integrated Plastic Substrate vs Competing Substrates

Property ITOGlass AgNWPET Integrated Substrate

Ohmsq ~10 ~10 5~10 Substrate bonding Strong Weak (requires a

binder) Strong

Roughness lt2 nm High lt2 nm

EQE 20-25 Comparable to ITOglass ~40

Mechanical flexibility

Thick and brittle Thin and flexible Thin and flexible

Soft MaterialsResearch Lab

2D FDTD Simulation of Light Extraction Efficiency

Soft MaterialsResearch Lab

OLED Performance

Soft Materials Research Lab

EQE ~305

White Polymer Al CsF

Composite Substrate PEDOTPSS

Light Extraction Enhancement 20-25X

Integrated Substrate PEDOTPSS Yellow + Blue Al CsF

140 Device on ITOglass Device on Integrated Substrate

Power Efficacy (lmW)

100 1000 10000

Current Efficiency (cdA) 140

12010080604020

Device on ITOglass Device on Integrated Substrate

100 1000 10000

120100806040200 0

Luminance (cdm2) Luminance (cdm2)

The efficiencies of white OLEDs at 1000 cdm2 luminance are Soft Materials 120 cdA 40 EQE and 110 lmW the devices (CRI~55) Research Lab

Wider Viewing Angle

OLEDs viewed from the Al cathode side

Soft Materials ITOGlass Integrated SubstrateResearch Lab

Preliminary Results under the OLED Testing Program

bull Most devices were shorted bull One sample showed 27X enhancementSoft Materials

Research Lab

Challenges and solutions for integrated plastic substrate

bull Mechanical flexibility does not fit well in the current fabrication line designed for rigid glass substrate

Soft MaterialsResearch Lab

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer substrate may not be high enough (softening warping etc)

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network at specified temperature for 30 min

Soft Materials Research Lab

Treated AgNW Network 300 oC for 30 min

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer for the substrate may not be high enough

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network Treated AgNW Network 155 mAcm2 for 1 hour 155 mAcm2 for 1 hour

Soft MaterialsResearch Lab

Lifetime is longer than on ITOglass

Initial luminance 5000 cdm2

Soft MaterialsResearch Lab

Integrated substrates incorporating barrier film or glass

3M Barrier Film or Glass

Soft Materials Research Lab

Integrated Plastic Substrate or Glass Substrate

Substrate Sheet Glass

Flexible Glass Plastic Plastic w Barrier

Coatings Dimensional stability Best Medium Low Low

Barrier property High High Low Medium

Cost Low Low High Compatibility with R2R OLED manufacture

No Work in progress

Yes Yes

Soft MaterialsResearch Lab

Conclusion and Perspective

bull An integrated plastic substrate has to tailor made to fit with the OLED fabrication process

bull Our integrate plastic substrate is designed to replace ITOglass internal and external light extraction structures

bull can be produced at dramatically lower cost bull is compatible with solution-based process vacuum thermal deposition and 250 oC annealing

bull could enable R2R OLED panel manufacturing

Soft MaterialsResearch Lab

  • An Integrated OLED Substrate forLow-Cost and Enhanced Light Extraction
  • Integrated Substrate
  • ITOglass vs Integrated Plastic Substrate
  • ITOglass Replacements
  • Fabricating an Integrated Plastic Substrate
  • Integrated Plastic Substrate vs Competing Substrates
  • 2D FDTD Simulation of Light Extraction Efficiency
  • OLED Performance
  • Light Extraction Enhancement 20-25X
  • Wider Viewing Angle
  • Preliminary Results under the OLED Testing Program
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Lifetime is longer than on ITOglass
  • Integrated substrates incorporating barrier film or glass
  • Integrated Plastic Substrate or Glass Substrate
  • Conclusion and Perspective
Page 7: An Integrated OLED Substrate for Low-Cost and …energy.gov/sites/prod/files/2016/02/f29/pei_oledsubstrates_raleigh... · An Integrated OLED Substrate for Low-Cost and Enhanced Light

2D FDTD Simulation of Light Extraction Efficiency

Soft MaterialsResearch Lab

OLED Performance

Soft Materials Research Lab

EQE ~305

White Polymer Al CsF

Composite Substrate PEDOTPSS

Light Extraction Enhancement 20-25X

Integrated Substrate PEDOTPSS Yellow + Blue Al CsF

140 Device on ITOglass Device on Integrated Substrate

Power Efficacy (lmW)

100 1000 10000

Current Efficiency (cdA) 140

12010080604020

Device on ITOglass Device on Integrated Substrate

100 1000 10000

120100806040200 0

Luminance (cdm2) Luminance (cdm2)

The efficiencies of white OLEDs at 1000 cdm2 luminance are Soft Materials 120 cdA 40 EQE and 110 lmW the devices (CRI~55) Research Lab

Wider Viewing Angle

OLEDs viewed from the Al cathode side

Soft Materials ITOGlass Integrated SubstrateResearch Lab

Preliminary Results under the OLED Testing Program

bull Most devices were shorted bull One sample showed 27X enhancementSoft Materials

Research Lab

Challenges and solutions for integrated plastic substrate

bull Mechanical flexibility does not fit well in the current fabrication line designed for rigid glass substrate

Soft MaterialsResearch Lab

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer substrate may not be high enough (softening warping etc)

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network at specified temperature for 30 min

Soft Materials Research Lab

Treated AgNW Network 300 oC for 30 min

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer for the substrate may not be high enough

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network Treated AgNW Network 155 mAcm2 for 1 hour 155 mAcm2 for 1 hour

Soft MaterialsResearch Lab

Lifetime is longer than on ITOglass

Initial luminance 5000 cdm2

Soft MaterialsResearch Lab

Integrated substrates incorporating barrier film or glass

3M Barrier Film or Glass

Soft Materials Research Lab

Integrated Plastic Substrate or Glass Substrate

Substrate Sheet Glass

Flexible Glass Plastic Plastic w Barrier

Coatings Dimensional stability Best Medium Low Low

Barrier property High High Low Medium

Cost Low Low High Compatibility with R2R OLED manufacture

No Work in progress

Yes Yes

Soft MaterialsResearch Lab

Conclusion and Perspective

bull An integrated plastic substrate has to tailor made to fit with the OLED fabrication process

bull Our integrate plastic substrate is designed to replace ITOglass internal and external light extraction structures

bull can be produced at dramatically lower cost bull is compatible with solution-based process vacuum thermal deposition and 250 oC annealing

bull could enable R2R OLED panel manufacturing

Soft MaterialsResearch Lab

  • An Integrated OLED Substrate forLow-Cost and Enhanced Light Extraction
  • Integrated Substrate
  • ITOglass vs Integrated Plastic Substrate
  • ITOglass Replacements
  • Fabricating an Integrated Plastic Substrate
  • Integrated Plastic Substrate vs Competing Substrates
  • 2D FDTD Simulation of Light Extraction Efficiency
  • OLED Performance
  • Light Extraction Enhancement 20-25X
  • Wider Viewing Angle
  • Preliminary Results under the OLED Testing Program
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Lifetime is longer than on ITOglass
  • Integrated substrates incorporating barrier film or glass
  • Integrated Plastic Substrate or Glass Substrate
  • Conclusion and Perspective
Page 8: An Integrated OLED Substrate for Low-Cost and …energy.gov/sites/prod/files/2016/02/f29/pei_oledsubstrates_raleigh... · An Integrated OLED Substrate for Low-Cost and Enhanced Light

OLED Performance

Soft Materials Research Lab

EQE ~305

White Polymer Al CsF

Composite Substrate PEDOTPSS

Light Extraction Enhancement 20-25X

Integrated Substrate PEDOTPSS Yellow + Blue Al CsF

140 Device on ITOglass Device on Integrated Substrate

Power Efficacy (lmW)

100 1000 10000

Current Efficiency (cdA) 140

12010080604020

Device on ITOglass Device on Integrated Substrate

100 1000 10000

120100806040200 0

Luminance (cdm2) Luminance (cdm2)

The efficiencies of white OLEDs at 1000 cdm2 luminance are Soft Materials 120 cdA 40 EQE and 110 lmW the devices (CRI~55) Research Lab

Wider Viewing Angle

OLEDs viewed from the Al cathode side

Soft Materials ITOGlass Integrated SubstrateResearch Lab

Preliminary Results under the OLED Testing Program

bull Most devices were shorted bull One sample showed 27X enhancementSoft Materials

Research Lab

Challenges and solutions for integrated plastic substrate

bull Mechanical flexibility does not fit well in the current fabrication line designed for rigid glass substrate

Soft MaterialsResearch Lab

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer substrate may not be high enough (softening warping etc)

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network at specified temperature for 30 min

Soft Materials Research Lab

Treated AgNW Network 300 oC for 30 min

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer for the substrate may not be high enough

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network Treated AgNW Network 155 mAcm2 for 1 hour 155 mAcm2 for 1 hour

Soft MaterialsResearch Lab

Lifetime is longer than on ITOglass

Initial luminance 5000 cdm2

Soft MaterialsResearch Lab

Integrated substrates incorporating barrier film or glass

3M Barrier Film or Glass

Soft Materials Research Lab

Integrated Plastic Substrate or Glass Substrate

Substrate Sheet Glass

Flexible Glass Plastic Plastic w Barrier

Coatings Dimensional stability Best Medium Low Low

Barrier property High High Low Medium

Cost Low Low High Compatibility with R2R OLED manufacture

No Work in progress

Yes Yes

Soft MaterialsResearch Lab

Conclusion and Perspective

bull An integrated plastic substrate has to tailor made to fit with the OLED fabrication process

bull Our integrate plastic substrate is designed to replace ITOglass internal and external light extraction structures

bull can be produced at dramatically lower cost bull is compatible with solution-based process vacuum thermal deposition and 250 oC annealing

bull could enable R2R OLED panel manufacturing

Soft MaterialsResearch Lab

  • An Integrated OLED Substrate forLow-Cost and Enhanced Light Extraction
  • Integrated Substrate
  • ITOglass vs Integrated Plastic Substrate
  • ITOglass Replacements
  • Fabricating an Integrated Plastic Substrate
  • Integrated Plastic Substrate vs Competing Substrates
  • 2D FDTD Simulation of Light Extraction Efficiency
  • OLED Performance
  • Light Extraction Enhancement 20-25X
  • Wider Viewing Angle
  • Preliminary Results under the OLED Testing Program
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Lifetime is longer than on ITOglass
  • Integrated substrates incorporating barrier film or glass
  • Integrated Plastic Substrate or Glass Substrate
  • Conclusion and Perspective
Page 9: An Integrated OLED Substrate for Low-Cost and …energy.gov/sites/prod/files/2016/02/f29/pei_oledsubstrates_raleigh... · An Integrated OLED Substrate for Low-Cost and Enhanced Light

Light Extraction Enhancement 20-25X

Integrated Substrate PEDOTPSS Yellow + Blue Al CsF

140 Device on ITOglass Device on Integrated Substrate

Power Efficacy (lmW)

100 1000 10000

Current Efficiency (cdA) 140

12010080604020

Device on ITOglass Device on Integrated Substrate

100 1000 10000

120100806040200 0

Luminance (cdm2) Luminance (cdm2)

The efficiencies of white OLEDs at 1000 cdm2 luminance are Soft Materials 120 cdA 40 EQE and 110 lmW the devices (CRI~55) Research Lab

Wider Viewing Angle

OLEDs viewed from the Al cathode side

Soft Materials ITOGlass Integrated SubstrateResearch Lab

Preliminary Results under the OLED Testing Program

bull Most devices were shorted bull One sample showed 27X enhancementSoft Materials

Research Lab

Challenges and solutions for integrated plastic substrate

bull Mechanical flexibility does not fit well in the current fabrication line designed for rigid glass substrate

Soft MaterialsResearch Lab

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer substrate may not be high enough (softening warping etc)

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network at specified temperature for 30 min

Soft Materials Research Lab

Treated AgNW Network 300 oC for 30 min

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer for the substrate may not be high enough

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network Treated AgNW Network 155 mAcm2 for 1 hour 155 mAcm2 for 1 hour

Soft MaterialsResearch Lab

Lifetime is longer than on ITOglass

Initial luminance 5000 cdm2

Soft MaterialsResearch Lab

Integrated substrates incorporating barrier film or glass

3M Barrier Film or Glass

Soft Materials Research Lab

Integrated Plastic Substrate or Glass Substrate

Substrate Sheet Glass

Flexible Glass Plastic Plastic w Barrier

Coatings Dimensional stability Best Medium Low Low

Barrier property High High Low Medium

Cost Low Low High Compatibility with R2R OLED manufacture

No Work in progress

Yes Yes

Soft MaterialsResearch Lab

Conclusion and Perspective

bull An integrated plastic substrate has to tailor made to fit with the OLED fabrication process

bull Our integrate plastic substrate is designed to replace ITOglass internal and external light extraction structures

bull can be produced at dramatically lower cost bull is compatible with solution-based process vacuum thermal deposition and 250 oC annealing

bull could enable R2R OLED panel manufacturing

Soft MaterialsResearch Lab

  • An Integrated OLED Substrate forLow-Cost and Enhanced Light Extraction
  • Integrated Substrate
  • ITOglass vs Integrated Plastic Substrate
  • ITOglass Replacements
  • Fabricating an Integrated Plastic Substrate
  • Integrated Plastic Substrate vs Competing Substrates
  • 2D FDTD Simulation of Light Extraction Efficiency
  • OLED Performance
  • Light Extraction Enhancement 20-25X
  • Wider Viewing Angle
  • Preliminary Results under the OLED Testing Program
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Lifetime is longer than on ITOglass
  • Integrated substrates incorporating barrier film or glass
  • Integrated Plastic Substrate or Glass Substrate
  • Conclusion and Perspective
Page 10: An Integrated OLED Substrate for Low-Cost and …energy.gov/sites/prod/files/2016/02/f29/pei_oledsubstrates_raleigh... · An Integrated OLED Substrate for Low-Cost and Enhanced Light

Wider Viewing Angle

OLEDs viewed from the Al cathode side

Soft Materials ITOGlass Integrated SubstrateResearch Lab

Preliminary Results under the OLED Testing Program

bull Most devices were shorted bull One sample showed 27X enhancementSoft Materials

Research Lab

Challenges and solutions for integrated plastic substrate

bull Mechanical flexibility does not fit well in the current fabrication line designed for rigid glass substrate

Soft MaterialsResearch Lab

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer substrate may not be high enough (softening warping etc)

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network at specified temperature for 30 min

Soft Materials Research Lab

Treated AgNW Network 300 oC for 30 min

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer for the substrate may not be high enough

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network Treated AgNW Network 155 mAcm2 for 1 hour 155 mAcm2 for 1 hour

Soft MaterialsResearch Lab

Lifetime is longer than on ITOglass

Initial luminance 5000 cdm2

Soft MaterialsResearch Lab

Integrated substrates incorporating barrier film or glass

3M Barrier Film or Glass

Soft Materials Research Lab

Integrated Plastic Substrate or Glass Substrate

Substrate Sheet Glass

Flexible Glass Plastic Plastic w Barrier

Coatings Dimensional stability Best Medium Low Low

Barrier property High High Low Medium

Cost Low Low High Compatibility with R2R OLED manufacture

No Work in progress

Yes Yes

Soft MaterialsResearch Lab

Conclusion and Perspective

bull An integrated plastic substrate has to tailor made to fit with the OLED fabrication process

bull Our integrate plastic substrate is designed to replace ITOglass internal and external light extraction structures

bull can be produced at dramatically lower cost bull is compatible with solution-based process vacuum thermal deposition and 250 oC annealing

bull could enable R2R OLED panel manufacturing

Soft MaterialsResearch Lab

  • An Integrated OLED Substrate forLow-Cost and Enhanced Light Extraction
  • Integrated Substrate
  • ITOglass vs Integrated Plastic Substrate
  • ITOglass Replacements
  • Fabricating an Integrated Plastic Substrate
  • Integrated Plastic Substrate vs Competing Substrates
  • 2D FDTD Simulation of Light Extraction Efficiency
  • OLED Performance
  • Light Extraction Enhancement 20-25X
  • Wider Viewing Angle
  • Preliminary Results under the OLED Testing Program
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Lifetime is longer than on ITOglass
  • Integrated substrates incorporating barrier film or glass
  • Integrated Plastic Substrate or Glass Substrate
  • Conclusion and Perspective
Page 11: An Integrated OLED Substrate for Low-Cost and …energy.gov/sites/prod/files/2016/02/f29/pei_oledsubstrates_raleigh... · An Integrated OLED Substrate for Low-Cost and Enhanced Light

Preliminary Results under the OLED Testing Program

bull Most devices were shorted bull One sample showed 27X enhancementSoft Materials

Research Lab

Challenges and solutions for integrated plastic substrate

bull Mechanical flexibility does not fit well in the current fabrication line designed for rigid glass substrate

Soft MaterialsResearch Lab

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer substrate may not be high enough (softening warping etc)

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network at specified temperature for 30 min

Soft Materials Research Lab

Treated AgNW Network 300 oC for 30 min

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer for the substrate may not be high enough

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network Treated AgNW Network 155 mAcm2 for 1 hour 155 mAcm2 for 1 hour

Soft MaterialsResearch Lab

Lifetime is longer than on ITOglass

Initial luminance 5000 cdm2

Soft MaterialsResearch Lab

Integrated substrates incorporating barrier film or glass

3M Barrier Film or Glass

Soft Materials Research Lab

Integrated Plastic Substrate or Glass Substrate

Substrate Sheet Glass

Flexible Glass Plastic Plastic w Barrier

Coatings Dimensional stability Best Medium Low Low

Barrier property High High Low Medium

Cost Low Low High Compatibility with R2R OLED manufacture

No Work in progress

Yes Yes

Soft MaterialsResearch Lab

Conclusion and Perspective

bull An integrated plastic substrate has to tailor made to fit with the OLED fabrication process

bull Our integrate plastic substrate is designed to replace ITOglass internal and external light extraction structures

bull can be produced at dramatically lower cost bull is compatible with solution-based process vacuum thermal deposition and 250 oC annealing

bull could enable R2R OLED panel manufacturing

Soft MaterialsResearch Lab

  • An Integrated OLED Substrate forLow-Cost and Enhanced Light Extraction
  • Integrated Substrate
  • ITOglass vs Integrated Plastic Substrate
  • ITOglass Replacements
  • Fabricating an Integrated Plastic Substrate
  • Integrated Plastic Substrate vs Competing Substrates
  • 2D FDTD Simulation of Light Extraction Efficiency
  • OLED Performance
  • Light Extraction Enhancement 20-25X
  • Wider Viewing Angle
  • Preliminary Results under the OLED Testing Program
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Lifetime is longer than on ITOglass
  • Integrated substrates incorporating barrier film or glass
  • Integrated Plastic Substrate or Glass Substrate
  • Conclusion and Perspective
Page 12: An Integrated OLED Substrate for Low-Cost and …energy.gov/sites/prod/files/2016/02/f29/pei_oledsubstrates_raleigh... · An Integrated OLED Substrate for Low-Cost and Enhanced Light

Challenges and solutions for integrated plastic substrate

bull Mechanical flexibility does not fit well in the current fabrication line designed for rigid glass substrate

Soft MaterialsResearch Lab

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer substrate may not be high enough (softening warping etc)

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network at specified temperature for 30 min

Soft Materials Research Lab

Treated AgNW Network 300 oC for 30 min

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer for the substrate may not be high enough

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network Treated AgNW Network 155 mAcm2 for 1 hour 155 mAcm2 for 1 hour

Soft MaterialsResearch Lab

Lifetime is longer than on ITOglass

Initial luminance 5000 cdm2

Soft MaterialsResearch Lab

Integrated substrates incorporating barrier film or glass

3M Barrier Film or Glass

Soft Materials Research Lab

Integrated Plastic Substrate or Glass Substrate

Substrate Sheet Glass

Flexible Glass Plastic Plastic w Barrier

Coatings Dimensional stability Best Medium Low Low

Barrier property High High Low Medium

Cost Low Low High Compatibility with R2R OLED manufacture

No Work in progress

Yes Yes

Soft MaterialsResearch Lab

Conclusion and Perspective

bull An integrated plastic substrate has to tailor made to fit with the OLED fabrication process

bull Our integrate plastic substrate is designed to replace ITOglass internal and external light extraction structures

bull can be produced at dramatically lower cost bull is compatible with solution-based process vacuum thermal deposition and 250 oC annealing

bull could enable R2R OLED panel manufacturing

Soft MaterialsResearch Lab

  • An Integrated OLED Substrate forLow-Cost and Enhanced Light Extraction
  • Integrated Substrate
  • ITOglass vs Integrated Plastic Substrate
  • ITOglass Replacements
  • Fabricating an Integrated Plastic Substrate
  • Integrated Plastic Substrate vs Competing Substrates
  • 2D FDTD Simulation of Light Extraction Efficiency
  • OLED Performance
  • Light Extraction Enhancement 20-25X
  • Wider Viewing Angle
  • Preliminary Results under the OLED Testing Program
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Lifetime is longer than on ITOglass
  • Integrated substrates incorporating barrier film or glass
  • Integrated Plastic Substrate or Glass Substrate
  • Conclusion and Perspective
Page 13: An Integrated OLED Substrate for Low-Cost and …energy.gov/sites/prod/files/2016/02/f29/pei_oledsubstrates_raleigh... · An Integrated OLED Substrate for Low-Cost and Enhanced Light

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer substrate may not be high enough (softening warping etc)

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network at specified temperature for 30 min

Soft Materials Research Lab

Treated AgNW Network 300 oC for 30 min

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer for the substrate may not be high enough

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network Treated AgNW Network 155 mAcm2 for 1 hour 155 mAcm2 for 1 hour

Soft MaterialsResearch Lab

Lifetime is longer than on ITOglass

Initial luminance 5000 cdm2

Soft MaterialsResearch Lab

Integrated substrates incorporating barrier film or glass

3M Barrier Film or Glass

Soft Materials Research Lab

Integrated Plastic Substrate or Glass Substrate

Substrate Sheet Glass

Flexible Glass Plastic Plastic w Barrier

Coatings Dimensional stability Best Medium Low Low

Barrier property High High Low Medium

Cost Low Low High Compatibility with R2R OLED manufacture

No Work in progress

Yes Yes

Soft MaterialsResearch Lab

Conclusion and Perspective

bull An integrated plastic substrate has to tailor made to fit with the OLED fabrication process

bull Our integrate plastic substrate is designed to replace ITOglass internal and external light extraction structures

bull can be produced at dramatically lower cost bull is compatible with solution-based process vacuum thermal deposition and 250 oC annealing

bull could enable R2R OLED panel manufacturing

Soft MaterialsResearch Lab

  • An Integrated OLED Substrate forLow-Cost and Enhanced Light Extraction
  • Integrated Substrate
  • ITOglass vs Integrated Plastic Substrate
  • ITOglass Replacements
  • Fabricating an Integrated Plastic Substrate
  • Integrated Plastic Substrate vs Competing Substrates
  • 2D FDTD Simulation of Light Extraction Efficiency
  • OLED Performance
  • Light Extraction Enhancement 20-25X
  • Wider Viewing Angle
  • Preliminary Results under the OLED Testing Program
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Lifetime is longer than on ITOglass
  • Integrated substrates incorporating barrier film or glass
  • Integrated Plastic Substrate or Glass Substrate
  • Conclusion and Perspective
Page 14: An Integrated OLED Substrate for Low-Cost and …energy.gov/sites/prod/files/2016/02/f29/pei_oledsubstrates_raleigh... · An Integrated OLED Substrate for Low-Cost and Enhanced Light

Challenges and solutions for integrated plastic substrate

bull Thermal stability of the polymer for the substrate may not be high enough

bull Silver nanowire network needs protection for high T process and for high current operation

Untreated AgNW Network Treated AgNW Network 155 mAcm2 for 1 hour 155 mAcm2 for 1 hour

Soft MaterialsResearch Lab

Lifetime is longer than on ITOglass

Initial luminance 5000 cdm2

Soft MaterialsResearch Lab

Integrated substrates incorporating barrier film or glass

3M Barrier Film or Glass

Soft Materials Research Lab

Integrated Plastic Substrate or Glass Substrate

Substrate Sheet Glass

Flexible Glass Plastic Plastic w Barrier

Coatings Dimensional stability Best Medium Low Low

Barrier property High High Low Medium

Cost Low Low High Compatibility with R2R OLED manufacture

No Work in progress

Yes Yes

Soft MaterialsResearch Lab

Conclusion and Perspective

bull An integrated plastic substrate has to tailor made to fit with the OLED fabrication process

bull Our integrate plastic substrate is designed to replace ITOglass internal and external light extraction structures

bull can be produced at dramatically lower cost bull is compatible with solution-based process vacuum thermal deposition and 250 oC annealing

bull could enable R2R OLED panel manufacturing

Soft MaterialsResearch Lab

  • An Integrated OLED Substrate forLow-Cost and Enhanced Light Extraction
  • Integrated Substrate
  • ITOglass vs Integrated Plastic Substrate
  • ITOglass Replacements
  • Fabricating an Integrated Plastic Substrate
  • Integrated Plastic Substrate vs Competing Substrates
  • 2D FDTD Simulation of Light Extraction Efficiency
  • OLED Performance
  • Light Extraction Enhancement 20-25X
  • Wider Viewing Angle
  • Preliminary Results under the OLED Testing Program
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Lifetime is longer than on ITOglass
  • Integrated substrates incorporating barrier film or glass
  • Integrated Plastic Substrate or Glass Substrate
  • Conclusion and Perspective
Page 15: An Integrated OLED Substrate for Low-Cost and …energy.gov/sites/prod/files/2016/02/f29/pei_oledsubstrates_raleigh... · An Integrated OLED Substrate for Low-Cost and Enhanced Light

Lifetime is longer than on ITOglass

Initial luminance 5000 cdm2

Soft MaterialsResearch Lab

Integrated substrates incorporating barrier film or glass

3M Barrier Film or Glass

Soft Materials Research Lab

Integrated Plastic Substrate or Glass Substrate

Substrate Sheet Glass

Flexible Glass Plastic Plastic w Barrier

Coatings Dimensional stability Best Medium Low Low

Barrier property High High Low Medium

Cost Low Low High Compatibility with R2R OLED manufacture

No Work in progress

Yes Yes

Soft MaterialsResearch Lab

Conclusion and Perspective

bull An integrated plastic substrate has to tailor made to fit with the OLED fabrication process

bull Our integrate plastic substrate is designed to replace ITOglass internal and external light extraction structures

bull can be produced at dramatically lower cost bull is compatible with solution-based process vacuum thermal deposition and 250 oC annealing

bull could enable R2R OLED panel manufacturing

Soft MaterialsResearch Lab

  • An Integrated OLED Substrate forLow-Cost and Enhanced Light Extraction
  • Integrated Substrate
  • ITOglass vs Integrated Plastic Substrate
  • ITOglass Replacements
  • Fabricating an Integrated Plastic Substrate
  • Integrated Plastic Substrate vs Competing Substrates
  • 2D FDTD Simulation of Light Extraction Efficiency
  • OLED Performance
  • Light Extraction Enhancement 20-25X
  • Wider Viewing Angle
  • Preliminary Results under the OLED Testing Program
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Lifetime is longer than on ITOglass
  • Integrated substrates incorporating barrier film or glass
  • Integrated Plastic Substrate or Glass Substrate
  • Conclusion and Perspective
Page 16: An Integrated OLED Substrate for Low-Cost and …energy.gov/sites/prod/files/2016/02/f29/pei_oledsubstrates_raleigh... · An Integrated OLED Substrate for Low-Cost and Enhanced Light

Integrated substrates incorporating barrier film or glass

3M Barrier Film or Glass

Soft Materials Research Lab

Integrated Plastic Substrate or Glass Substrate

Substrate Sheet Glass

Flexible Glass Plastic Plastic w Barrier

Coatings Dimensional stability Best Medium Low Low

Barrier property High High Low Medium

Cost Low Low High Compatibility with R2R OLED manufacture

No Work in progress

Yes Yes

Soft MaterialsResearch Lab

Conclusion and Perspective

bull An integrated plastic substrate has to tailor made to fit with the OLED fabrication process

bull Our integrate plastic substrate is designed to replace ITOglass internal and external light extraction structures

bull can be produced at dramatically lower cost bull is compatible with solution-based process vacuum thermal deposition and 250 oC annealing

bull could enable R2R OLED panel manufacturing

Soft MaterialsResearch Lab

  • An Integrated OLED Substrate forLow-Cost and Enhanced Light Extraction
  • Integrated Substrate
  • ITOglass vs Integrated Plastic Substrate
  • ITOglass Replacements
  • Fabricating an Integrated Plastic Substrate
  • Integrated Plastic Substrate vs Competing Substrates
  • 2D FDTD Simulation of Light Extraction Efficiency
  • OLED Performance
  • Light Extraction Enhancement 20-25X
  • Wider Viewing Angle
  • Preliminary Results under the OLED Testing Program
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Lifetime is longer than on ITOglass
  • Integrated substrates incorporating barrier film or glass
  • Integrated Plastic Substrate or Glass Substrate
  • Conclusion and Perspective
Page 17: An Integrated OLED Substrate for Low-Cost and …energy.gov/sites/prod/files/2016/02/f29/pei_oledsubstrates_raleigh... · An Integrated OLED Substrate for Low-Cost and Enhanced Light

Integrated Plastic Substrate or Glass Substrate

Substrate Sheet Glass

Flexible Glass Plastic Plastic w Barrier

Coatings Dimensional stability Best Medium Low Low

Barrier property High High Low Medium

Cost Low Low High Compatibility with R2R OLED manufacture

No Work in progress

Yes Yes

Soft MaterialsResearch Lab

Conclusion and Perspective

bull An integrated plastic substrate has to tailor made to fit with the OLED fabrication process

bull Our integrate plastic substrate is designed to replace ITOglass internal and external light extraction structures

bull can be produced at dramatically lower cost bull is compatible with solution-based process vacuum thermal deposition and 250 oC annealing

bull could enable R2R OLED panel manufacturing

Soft MaterialsResearch Lab

  • An Integrated OLED Substrate forLow-Cost and Enhanced Light Extraction
  • Integrated Substrate
  • ITOglass vs Integrated Plastic Substrate
  • ITOglass Replacements
  • Fabricating an Integrated Plastic Substrate
  • Integrated Plastic Substrate vs Competing Substrates
  • 2D FDTD Simulation of Light Extraction Efficiency
  • OLED Performance
  • Light Extraction Enhancement 20-25X
  • Wider Viewing Angle
  • Preliminary Results under the OLED Testing Program
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Lifetime is longer than on ITOglass
  • Integrated substrates incorporating barrier film or glass
  • Integrated Plastic Substrate or Glass Substrate
  • Conclusion and Perspective
Page 18: An Integrated OLED Substrate for Low-Cost and …energy.gov/sites/prod/files/2016/02/f29/pei_oledsubstrates_raleigh... · An Integrated OLED Substrate for Low-Cost and Enhanced Light

Conclusion and Perspective

bull An integrated plastic substrate has to tailor made to fit with the OLED fabrication process

bull Our integrate plastic substrate is designed to replace ITOglass internal and external light extraction structures

bull can be produced at dramatically lower cost bull is compatible with solution-based process vacuum thermal deposition and 250 oC annealing

bull could enable R2R OLED panel manufacturing

Soft MaterialsResearch Lab

  • An Integrated OLED Substrate forLow-Cost and Enhanced Light Extraction
  • Integrated Substrate
  • ITOglass vs Integrated Plastic Substrate
  • ITOglass Replacements
  • Fabricating an Integrated Plastic Substrate
  • Integrated Plastic Substrate vs Competing Substrates
  • 2D FDTD Simulation of Light Extraction Efficiency
  • OLED Performance
  • Light Extraction Enhancement 20-25X
  • Wider Viewing Angle
  • Preliminary Results under the OLED Testing Program
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Challenges and solutions for integrated plastic substrate
  • Lifetime is longer than on ITOglass
  • Integrated substrates incorporating barrier film or glass
  • Integrated Plastic Substrate or Glass Substrate
  • Conclusion and Perspective