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Proceedings Paper

Investigation of stability in polymer thin film transistors for flexible active-matrix displays
Author(s): Yong H. Kim; Sung K. Park; Jeong I. Han; Dae-Gyu Moon; Won K. Kim
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Paper Abstract

We investigated the electrical stability of polythiophene-based organic thin film transistors (OTFTs). The electrical properties of a thin film transistor such as field effect mobility, threshold voltage and on/off current changed vastly when exposed to air. In order to analyze the stability of the transistor, electrical properties were first measured in vacuum for several hours, then air or oxygen gas was introduced and the changes in the electrical properties were observed. Device showed a decrease in field effect mobility from 10-3 cm2/V•s to 10-5 cm2/V•s after exposure to air and the on/off ratio was also changed from 103 to 101.

Paper Details

Date Published: 8 September 2004
PDF: 8 pages
Proc. SPIE 5464, Organic Optoelectronics and Photonics, (8 September 2004); doi: 10.1117/12.545322
Show Author Affiliations
Yong H. Kim, Korea Electronics Technology Institute (South Korea)
Sung K. Park, Korea Electronics Technology Institute (South Korea)
Jeong I. Han, Korea Electronics Technology Institute (South Korea)
Dae-Gyu Moon, Korea Electronics Technology Institute (South Korea)
Won K. Kim, Korea Electronics Technology Institute (South Korea)

Published in SPIE Proceedings Vol. 5464:
Organic Optoelectronics and Photonics
Paul L. Heremans; Michele Muccini; Hans Hofstraat, Editor(s)

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