期刊
ORGANIC ELECTRONICS
卷 11, 期 12, 页码 2037-2044出版社
ELSEVIER
DOI: 10.1016/j.orgel.2010.09.003
关键词
Gravure; Thin film transistors; pBTTT; Ink-jet; Switching speed; Printed electronics
Organic thin film transistors with channel lengths below 20 mu m have been fabricated on plastic substrates using a combination of rotogravure and ink-jet printing exclusively. Gravure is utilized to deposit thin, smooth, and narrow metal lines ideal for gate electrodes; a poly(4-vinylphenol) dielectric; and a poly(2,5-bis(3-tetradecylthiophene-2-yl) thieno[3,2-b]thiophene) (pBTTT) semiconductor using a heated roll. A novel fluid guiding technique is used to maintain closely spaced ink-jet printed source and drain (S/D) contacts. Together these printing processes yield aggressively scaled yet easily manufacturable TFTs with operating frequencies of 18 kHz. (C) 2010 Elsevier B. V. All rights reserved.
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