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

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

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

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.

Original language	English
Title of host publication	Organic Electronics
Subtitle of host publication	Materials, Devices and Applications
Pages	264-269
Number of pages	6
Volume	965
Publication status	Published - 2006 Dec 1
Externally published	Yes
Event	2006 MRS Fall Meeting - Boston, MA Duration: 2006 Nov 27 → 2006 Dec 1

Other

Other	2006 MRS Fall Meeting
City	Boston, MA
Period	06/11/27 → 06/12/1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials

Cite this

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

abstract = "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.",

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

year = "2006",

month = dec,

day = "1",

language = "English",

isbn = "9781604234176",

volume = "965",

pages = "264--269",

booktitle = "Organic Electronics",

note = "2006 MRS Fall Meeting ; Conference date: 27-11-2006 Through 01-12-2006",

}

TY - GEN

T1 - Surface modifications using thiol self-assembled monolayers on Au electrodes in organic field effect transistors

AU - Hiroshiba, Nobuya

AU - Kumashiro, Ryotaro

AU - Komatsu, Naoya

AU - Suto, Yusuke

AU - Ishii, Hisao

AU - Takaishi, Shinya

AU - Yamashita, Masahiro

AU - Tsukagoshi, Kazuhiro

AU - Tanigaki, Katsumi

PY - 2006/12/1

Y1 - 2006/12/1

N2 - 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.

AB - 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.

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M3 - Conference contribution

AN - SCOPUS:40949111010

SN - 9781604234176

VL - 965

SP - 264

EP - 269

BT - Organic Electronics

T2 - 2006 MRS Fall Meeting

Y2 - 27 November 2006 through 1 December 2006

ER -

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

Abstract

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ASJC Scopus subject areas

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