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Copy of Copy of Copy of new transparent

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vpraveen kumar

on 26 September 2012

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Transcript of Copy of Copy of Copy of new transparent

TRANSPARENT ELECTRONICS INTRODUCTION REQUIREMENTS FOR TCOS TRANSPARENT PASSIVE,LINEAR DEVICES TRASPARENT THIN FILM TRANSISTORS METALLIC OXIDE SEMICONDUCTORS NANO ELECTRONICS PRESENT MARKET'S ADVANTAGES DISADVANTAGES APPLICATIONS FUTURE SCOPE CONCLUSION REFERENCE Invisible electronics
Dramatical change in the look and use of electronic devices COMBINING OPTICAL TRANSPARENCY WITH ELECTRICAL CONDUCTIVITY Degenerate doping

Burstein - moss(Bm) shift SOME EXAMPLES BAND STRUCTURE OF TCO Good conductivity
Band gap energy Eg > 3 ev
High mobility
Room temperature deposited film
Non-toxic elements
Cheap processing MATERIAL COMPARISONS Transparent Thin Film Resistors
Transparent Thin Film Capacitors
Transparent Thin Film Inductors TRANSPARENT THIN FILM RESISTORS TRANSPARENT THIN FILM CAPACITORS FIG 1 FIG 2 IDIAL OPERATION OF N-CHANNEL TTFT FIG 1 TABLE V-I Characteristics of TTFT FIG 1 FIG 2 FIG 3 Transparent electronics based on Transfer printed alined carbon nanotubes on rigid and flexible substrates
Aligned single-walled carbon nanotubes
High effective mobility’s (~1300cm2v v-1 s-1 ) and provides bending up to 1200.
On-off ratio 3x104 FABRICATION OF TRANSPARENT ALIGNED NANOTUBE TRANSISTOR ON GLASS/PET FULLY TRANSPARENT PMOS INVERTERS AND LED DRIVING CIRCUITRY
1. Samsung
2. Apple
3. Saint-Gobain
4. Cambrios
5. 3M
6. Corning
7. Kurt j. Lesker Can process at low temperature (Room temperature)
Low toxic compared to present sub-micron technology
Low cost due to usage of oxide materials
Low sensitive to light and EMI
Physically robust ,hard to scratch
Enable high security due to invisible camera and sensors
Increases flexibility
New design (Fashion for using transparent display)
Size of device will reduce
Provides higher mobility of electron compared to present Semiconductor Initial cost is high
Oxide semiconductor doesn’t provide fully transparency (>80%)
Oxide semiconductor doesn’t support CMOS devices
All Electronic devices can’t be made transparent ex: TTFI, Transformer,Magnetic coils.
Nono is also cost Developing of new materials like Organic devices
Graphene transistor for transparent electronics
Transparent sensors for security application
Improving of transparency up to 100%
Improving of Transparent Battery Great impact on human machine interaction
Lead to new applications
Cause enviornmental challenges as currently using ec device ‘Transparent Electronics ’, Springer publications, J.F.Wager, D. A. Keszler, R. E. Presley.
‘Transparent electronics: from synthesis to applications’, Wiley publications: Antonio Facchetti, Tobin J. Marks
www.sciencemag.org
www.nanomarkets.com
www.physorg.com
www.hqpics.com 1. 2. 3. 4. 5. 6. 7. 8. Metallic Oxide semiconductors
Nano electronics THANK YOU FIG 3 FIG 4 9. 10. 11. 12.
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