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Transcript of transparent electronics ppt
WELCOME
TRANSPARENT ELECTRONICS
INTRODUCTION
•INVISIBLE ELECTRONICS
•TRANSPARENT CONDUCTING OXIDE (TCO)(In2O3, SnO2, CdO, ZnO )
•DRAMATICAL CHANGE IN THE LOOK AND USE OF ELECTRONIC DEVICES
COMBINING OPTICAL TRANSPARENCY WITH ELECTRICAL CONDUCTIVITY
•DEGENERATE DOPING
• BURSTEIN - MOSS(BM) SHIFT
BURSTEIN-MOSS(BM) SHIFT
SCHEMATIC BAND STRUCTURE OF TCO HOST
FACTORS CAUSING ADVERSE EFFECT
INTER-BAND AND INTRA- BAND TRANSITIONS
PLASMA OSCILLATIONS
IONIZED IMPURITY SCATTERING
ELECTRICAL PROPERTIES OF TCO
•SIMILAR CHEMICAL, STRUCTURAL AND ELECTRONIC PROPERTIES
•POST TRANSITION METALS
• INTERACTION BETWEEN THE S ORBIT OF METALS AND P ORBIT OF OXYGEN
BASIC PROPERTIES OF TCO HOST
OCTAHEDRAL COORDINATION OF OXYGEN ATOMS BY CATIONS
CARRIER GENERATION IN TCO
TWO METHODS:-
SUBSTITUTIONAL DOPING
OXYGEN REDUCTION
SUBSTITUTIONAL DOPING
DOPING WITH ALIOVALENT IONS
DOPING WITH GROUP III, IV AND VII ELEMENTS
ELECTRON VELOCITY AND DENSITY AT FERMI LEVEL RESULT IN THE TREND
In>Y>Sc>Ga
OXYGEN REDUCTION
REMOVAL OF OXYGEN ATOM FROM A METAL OXIDE
RELATIVELY UNIFORM CHARGE DENSITIES
FORMATION OF F-CENTER IN LIGHT METAL OXIDES
TRANSPARENT ELECTRONIC DEVICES
SELECTION, DESIGN, SIMULATION, FABRICATION, INTEGRATION, CHARACTERIZATION AND OPTIMIZATION
PASSIVE, LINEAR DEVICES TWO TERMINAL ELECTRONIC DEVICES TRANSPARNT THIN-FILM TRANSISTORS
(TTFTs)
PASSIVE, LINEAR DEVICESTRANSPARENT THIN FILMRESISTORS
TRANSPARENT THIN FILM CAPACITORS
TTFI(INDUCTOR)
TRANSPARENT THIN-FILM TRANSISTORS (TTFTs)
APPLICATIONS
MOBILE PHONESLAPTOPS
TRANSPARENT CONDUCTORS
SOLAR PANELSTRANSPARENT WASHER
FUTURE SCOPE
SOLAR WINDOWS
IMPROVING STABILITY OF TRANSPARENT SOLAR CELLS
TECHNOLOGICAL ADVANCES
CONCLUSION AND REMARKS
GREAT IMPACT ON HUMAN MACHINE INTERACTION
LEAD TO NEW APPLICATIONS CAUSE ENVIORNMENTAL
CHALLENGES AS CURRENTLY USING EC DEVICE
THANKS