transparent electronics
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Transcript of transparent electronics
Transparent
ElectronicsSUBMITTED BY-EKTA PANDEY(0832EX121018)
GUIDED BY-MS.PURVA TRIVEDI
CHAMELI DEVI SCHOOL OF ENGINEERING
CAN YOU GUESS PLEASE ??
Introduction
What is transparent electronics?
In transparent electronics the usual
opaque semiconductor materials forming the
basis for electronic device fabrication is
replaced with transparent materials.
COMBINING OPTICAL
TRANSPARENCY WITH ELECTRICAL
CONDUCTIVITY•DEGENERATE DOPING
• BURSTEIN - MOSS(BM) SHIFT
BURSTEIN-MOSS(BM) SHIFT
Transparent electronic devices
Transparent Passive devices
Transparent Active devices
Transparent Passive devices
Transparent Thin Film Resistors
Transparent Thin Film Capacitors
Transparent Thin Film Inductors
There are two technologies which
preceded and underlie transparent
electronics:
1. Transparent Conducting Oxides (TCOs)
2. Thin Film Transistors (TFTs)
Transparent Conducting Oxides (TCOs)
TCOs constitute an unusual class of
materials possessing two physical properties
(generally considered mutually exclusive):
1. High optical transparency. ( Eg>3.1eV)
2. High electrical conductivity.
I-V Characteristics of ZnO/AgCoO2 p-n junction
Transparent Thin Film TransistorsConstitutes the heart of transparent
electronics
Channel is formed from highly insulating, wide band gap transparent semiconductor(ZnO).
Source, drain and gate contacts are made from highly conductive TCO (ITO).
Two possible configurations are:a)Bottom gate
b)Top gate
Possible structure, (a) Bottom gate, and (b) Top gate.
(a) (b)
DC CHARACTERISTICS
Strengths and Weaknesses
Strengths Weaknesses
Visible transparency High resistance of TCO’s
Less Temperature Effect Lack of complementary devices
Low cost (solution based deposition and printing)
Low Frequency Of Operation
Low temperature processing Technological immaturity
Free real estate
Passive availability
Stable inorganic materials
Safe, nontoxic materials
Conclusion
*Holds the key for many future
advancements in security, entertainment
efficient utilization of energy.
*Appealing class of seethrough devices
will have great impact on the human–
machine interaction in the near future.
*Envoirment Friendly-Reduction of
environment pollution caused by
traditional techniques.
Thank you