Air-stable, low-voltage organic transistors: High-mobility thienoacene derivatives for unipolar and complementary ring oscillators on flexible substrates

U. Kraft, M. Sejfie, T. Zaki, F. Letzkus, J. N. Burghartz, K. Takimiya, E. Weber, H. Klauk

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

The organic semiconductor DNTT (dinaphtho-[2,3-b:2',3'-f]thieno[3,2-b] thiophene) and its didecyl- and diphenyl derivatives C10-DNTT and DPh-DNTT [1-3] have recently shown exceptionally large field-effect mobilities together with excellent air stability [4]. Here we present a detailed analysis of the mobility, contact resistance, air stability and signal delay (measured in unipolar as well as complementary ring oscillators) of low-voltage (∼3 V) thin-film transistors (TFTs) based on these semiconductors with channel lengths down to 0.5 μm on flexible plastic substrates. The TFTs were fabricated with an inverted staggered device structure and with Al gate electrodes, a gate dielectric composed of a plasma-grown AlOx layer (3.6 nm thick) and a tetradecylphosphonic acid self-assembled monolayer (SAM), a vacuum-deposited organic semiconductor layer (25 nm), and Au source and drain contacts [4]. The fabrication of organic TFTs with channel lengths as short as 0.5 μm was accomplished using high-resolution silicon stencil masks [6,7]. All measurements were performed in ambient air.

本文言語English
ホスト出版物のタイトル72nd Device Research Conference, DRC 2014 - Conference Digest
出版社Institute of Electrical and Electronics Engineers Inc.
ページ283-284
ページ数2
ISBN(印刷版)9781479954056
DOI
出版ステータスPublished - 2014 1月 1
外部発表はい
イベント72nd Device Research Conference, DRC 2014 - Santa Barbara, CA, United States
継続期間: 2014 6月 222014 6月 25

出版物シリーズ

名前Device Research Conference - Conference Digest, DRC
ISSN(印刷版)1548-3770

Other

Other72nd Device Research Conference, DRC 2014
国/地域United States
CitySanta Barbara, CA
Period14/6/2214/6/25

ASJC Scopus subject areas

  • 電子工学および電気工学

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