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Transparent Electronics

Combining Optical Transparency with Electrical Conductivity...

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Transparent Electronics

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  1. TRANSPARENT ELECTRONICS

  2. INTRODUCTION • INVISIBLE ELECTRONICS • TRANSPARENT CONDUCTING OXIDE (TCO) • (In2O3, SnO2, CdO, ZnO ) • DRAMATICAL CHANGE IN THE LOOK AND USE • OF ELECTRONIC DEVICES

  3. COMBINING OPTICAL TRANSPARENCY WITH ELECTRICAL CONDUCTIVITY • DEGENERATE DOPING • BURSTEIN - MOSS(BM) SHIFT

  4. BURSTEIN-MOSS(BM) SHIFT

  5. SCHEMATIC BAND STRUCTURE OF TCO HOST

  6. FACTORS CAUSING ADVERSE EFFECT • INTER-BAND AND INTRA- BAND TRANSITIONS • PLASMA OSCILLATIONS • IONIZED IMPURITY SCATTERING

  7. 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

  8. BASIC PROPERTIES OF TCO HOST

  9. OCTAHEDRAL COORDINATION OF OXYGEN ATOMS BY CATIONS

  10. CARRIER GENERATION IN TCO TWO METHODS:- • SUBSTITUTIONAL DOPING • OXYGEN REDUCTION

  11. 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

  12. OXYGEN REDUCTION • REMOVAL OF OXYGEN ATOM FROM A METAL OXIDE • RELATIVELY UNIFORM CHARGE DENSITIES • FORMATION OF F-CENTER IN LIGHT METAL OXIDES

  13. TRANSPARENT ELECTRONIC DEVICES • SELECTION, DESIGN, SIMULATION, FABRICATION, INTEGRATION, CHARACTERIZATION AND OPTIMIZATION • PASSIVE, LINEAR DEVICES • TWO TERMINAL ELECTRONIC DEVICES • TRANSPARNT THIN-FILM TRANSISTORS (TTFTs)

  14. PASSIVE, LINEAR DEVICESTRANSPARENT THIN FILMRESISTORS

  15. TRANSPARENT THIN FILM CAPACITORS TTFI(INDUCTOR)

  16. TRANSPARENT THIN-FILM TRANSISTORS (TTFTs)

  17. APPLICATIONS LAPTOPS MOBILE PHONES TRANSPARENT CONDUCTORS TRANSPARENT WASHER SOLAR PANELS

  18. FUTURE SCOPE • SOLAR WINDOWS • IMPROVING STABILITY OF TRANSPARENT SOLAR CELLS • TECHNOLOGICAL ADVANCES

  19. CONCLUSION AND REMARKS • GREAT IMPACT ON HUMAN MACHINE INTERACTION • LEAD TO NEW APPLICATIONS • CAUSE ENVIORNMENTAL CHALLENGES AS CURRENTLY USING EC DEVICE

  20. THANKS

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