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