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Oriented Film Growth of Organic Semiconductor Sexithiophene on Artificial Periodic Grooves and Electrical Conduction Properties of the Films

Published online by Cambridge University Press:  01 February 2011

Susumu Ikeda ,
Yasuo Wada ,
Katsuhiko Inaba ,
Kazuo Terashima ,
Toshihiro Shimada  and
Koichiro Saiki
Susumu Ikeda
Affiliation:
[email protected], The University of Tokyo, Department of Complexity Science and Engineering, Graduate School of Frontier Sciences, Kashiwanoha 5-1-5, Kashiwa, 277-8561, Japan, +81-4-7136-3907, +81-4-7136-3907
Yasuo Wada
Affiliation:
[email protected], Toyo University, Graduate School of Interdisciplinary New Science, 2100 Kujirai, Kawagoe, 350-8585, Japan
Katsuhiko Inaba
Affiliation:
[email protected], Rigaku Corporation, X-ray Research Laboratory, 3-9-12 Matsubara-cho, Akishima, 196-8666, Japan
Kazuo Terashima
Affiliation:
[email protected], The University of Tokyo, Department of Advanced Materials Science, Graduate School of Frontier Sciences, Kashiwanoha 5-1-5, Kashiwa, 277-8561, Japan
Toshihiro Shimada
Affiliation:
[email protected], The University of Tokyo, Department of Chemistry, School of Science, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
Koichiro Saiki
Affiliation:
[email protected], The University of Tokyo, Department of Complexity Science and Engineering, Graduate School of Frontier Sciences, Kashiwanoha 5-1-5, Kashiwa, 277-8561, Japan
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Abstract

Film growth of organic semiconductor α-sexithiophene (6T) was studied using substrates with artificial periodic grooves. The grooves were fabricated on thermally oxidized silicon substrates by electron beam lithography. Based on the orientation analysis by atomic force microscopy and grazing-incidence x-ray diffraction, part of the 6T grains grew having the in-plane orientational relationship with the artificial grooves. This phenomenon corresponds to “ggraphoepitaxy” which has been well known in inorganic materials research field. As well as the in-plane preferred orientation, one-dimensional structure consisting of connected 6T grains was observed. The electrical conduction properties of the films were also evaluated.

Keywords

organiclithography (removal)epitaxy
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1059: Symposium KK – Nanoscale Pattern Formation , 2007 , 1059-KK11-11
Copyright
Copyright © Materials Research Society 2008

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References

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