this a presentation on transparent electronics.check out a really wonderful technology evolved in electronics.

1. SUBMITTED BY-EKTA
PANDEY
(0832EX121018)
GUIDED BY-MS.
PURVA TRIVEDI

4. 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.

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

6. BURSTEIN-MOSS(BM)
SHIFT

7. Transparent electronic
devices
Transparent Passive devices
Transparent Active devices

8. Transparent Passive devices
 Transparent Thin Film Resistors
 Transparent Thin Film Capacitors
 Transparent Thin Film Inductors

9.  There are two technologies which preceded
and underlie transparent electronics:
1. Transparent Conducting Oxides (TCOs)
2. Thin Film Transistors (TFTs)

10. 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

11. Transparent Thin Film Transistors
Constitutes 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

12. Possible structure, (a) Bottom gate, and
(b) Top gate.
(a) (b)

13. DC CHARACTERISTICS

15. Strengths and Weaknesses
Strengths Weaknesses
Visible transparency High resistance of TCO’s
Less Temperature Effect Lack of complementary devices
Low cost (solution based
Low Frequency Of Operation
deposition and printing)
Low temperature processing Technological immaturity
Free real estate
Passive availability
Stable inorganic materials
Safe, nontoxic materials

16. 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.