Surface modifications using thiol self-assembled monolayers on Au electrodes in organic field effect transistors

Nobuya Hiroshiba, Ryotaro Kumashiro, Naoya Komatsu, Yusuke Suto, Hisao Ishii, Shinya Takaishi, Masahiro Yamashita, Kazuhiro Tsukagoshi, Katsumi Tanigaki

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

The influences of self-assembled-monolayers (SAMs) modifications on the gold electrodes in organic field effect transistors are studied using benzen-thiols (BzTs) having amino (NH2), nitro (NO2) and methyl (CH3) substituents and pentacene as an organic semiconductor. The field effect transistor (FET) characteristics are found to be very sensitive to the preparation condition of the SAMs modified surfaces. This can be rationalized in terms of the barriers against carrier injections made by SAMs and this situation can be monitored using a surface contact-angle method. The enhancement in the field effect mobilities μ s is observed when the SAMs modifications to the electrodes are applied, and this could be caused by the higher efficiency of carrier injection attained by the hole transfer from SAMs to pentacene molecules.

本文言語English
ホスト出版物のタイトルOrganic Electronics
ホスト出版物のサブタイトルMaterials, Devices and Applications
ページ264-269
ページ数6
965
出版ステータスPublished - 2006 12 1
外部発表はい
イベント2006 MRS Fall Meeting - Boston, MA
継続期間: 2006 11 272006 12 1

Other

Other2006 MRS Fall Meeting
CityBoston, MA
Period06/11/2706/12/1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

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