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Low Threshold Voltage Pentacene OTFTs with O2 Annealed Pr2O3 Gate Insulating Layer


Paper Type 
Short Communication
Title 
Low Threshold Voltage Pentacene OTFTs with O2 Annealed Pr2O3 Gate Insulating Layer
Author 
Prasanta Kumar Saikia, Puja Saikia, Ranjit Sarma and Dipok Saikia
Email 
puja.saik@gmail.com
Abstract:

Pentacene  OTFTs  have  been  successfully  reported  using  Pr2O3  as  a  gate  insulator. The  use  of  high  dielectric  constant  gate  dielectric  reduces  the  threshold  voltage  of  the  OTFTs  bellow-1V. The  technique  high  temperature  O2  annealing  is  success  fully  used  to  improve  the  surface  geometry  of  Pr2O3  films. The  fabricated  OTFTs  gives  very  low  threshold  voltage-0.8V  and  sub-threshold  swing  0.9V/decade. The  calculated  ON-OFF ratio  is  1.2x104  and  mobility  is  0.043cm2/V.s.

Start & End Page 
653 - 657
Received Date 
Revised Date 
Accepted Date 
Full Text 
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Keyword 
pentacene, organic thin film transistors, low threshold voltage
Volume 
Vol.38 No.4 (OCTOBER 2011)
DOI 
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Chiang Mai Journal of Science

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