期刊
THIN SOLID FILMS
卷 518, 期 2, 页码 642-646出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2009.07.060
关键词
Organic field-effect transistor; Organic thin-film transistor; Poly(3-hexylthiophene); Self-assembled monolayer; Docosyltrichlorosilane
类别
资金
- Ministry of Economy, Trade and industry (METI)
- New Energy and Industrial Technology Development Organization (NEDO)
We have investigated self-assembled monolayer (SAM) treatment on SiO2 gate insulator of poly(3-hexylthiophene) (P3HT) thin-film transistor (TFT), and demonstrated a correlation between mobility and surface free energy of the insulator. The device with lower surface free energy shows higher mobility. The docosyltrichlorosilane (DCTS)-treated device exhibits the best performance among the various SAM-treated devices examined. Field-effect mobility, on/off ratio and threshold voltage of the DCTS-treated P3HT TFT were 0.015 cm(2)/VS, >10(5) and -14 V, respectively. (C) 2009 Elsevier B.V. All rights reserved.
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