Enhanced Stability of All Solution-Processed Organic Thin-Film Transistors Using Highly Conductive Modified Polymer Electrodes

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概要

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• Enhanced stability of all solution-processed organic thin-film transistors (OTFTs) has been achieved by replacing metallic electrodes with glycerol-modified poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) polymer electrodes. The modified PEDOT:PSS showed a substantially low electrical resistivity of 6.4\times 10^{-3} \Omega cm with improved environmental stability and water-resistant characteristics, which are crucial for highly reliable applications. Additionally, the modified PEDOT:PSS electrodes were highly stable under intense mechanical stress, allowing their application to flexible electronics. Particularly, all solution-processed flexible and transparent OTFTs with the modified PEDOT:PSS electrodes showed a field-effect mobility decrease of only 2.7% after a tensile mode mechanical fatigue test, while OTFTs with metallic electrodes showed a mobility decrease of 56.6% under identical test conditions.

• 2012-09-25

著者

• Han Jeong

  Department Of Applied Chemistry Faculty Of Science Science University Of Tokyo

• Park Sung

  School Of Biological Sciences And Institute Of Microbiology Seoul National University

• Park Sung

  School of Electrical and Electronics Engineering, Chung-Ang University, Seoul 156-756, Korea

• Kim Yong-Hoon

  Flexible Display Research Center, Korea Electronics Technology Institute, Seongnam, Gyeonggi 463-816, Korea

• Han Jeong

  Department of Chemical and Biochemical Engineering, Dongguk University---Seoul, Seoul 100-715, Korea

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