An organic thin-film transistor of high mobility by dielectric surface modification with organic molecule

Organic thin-film transistors (OTFTs) based on pentacene semiconductor are elaborated on the plastic substrates through a four-level mask process without photolithographic patterning to yield a simple fabrication process. Octadecyltrimethoxysilane (OTMS) as an organic molecule for self-assembled mon...

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Bibliographic Details
Published in:Applied physics letters 2004-12, Vol.85 (26), p.6368-6370
Main Authors: Kim, Jong-Moo, Lee, Joo-Won, Kim, Jai-Kyeong, Ju, Byeong-Kwon, Kim, Jong-Seung, Lee, Yun-Hi, Oh, Myung-Hwan
Format: Article
Language:English
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Summary:Organic thin-film transistors (OTFTs) based on pentacene semiconductor are elaborated on the plastic substrates through a four-level mask process without photolithographic patterning to yield a simple fabrication process. Octadecyltrimethoxysilane (OTMS) as an organic molecule for self-assembled monolayers is deposited on the surface of zirconium oxide dielectric layer. The effect of OTMS interlayer with gate dielectric surface modification on the field effect mobility of OTFTs has been examined and these prototype organic transistors showed excellent electrical characteristics with field effect mobility > 0.66 cm 2 ∕ V s and I on ∕ I off > 10 . 5
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1841470