Nanotransfer of the polythiophene molecular alignment onto the step-bunched vicinal si(111) substrate

Ryo Onoki, Genki Yoshikawa, Yuki Tsuruma, Susumu Ikeda, Koichiro Saiki, Keiji Ueno

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

A poly(3-dodecylthiophene-2,5-diyl) film having in-plane anisotropic molecular arrangement was successfully fabricated by transferring its Langmuir-Blodgett film onto a step-bunched Si(111) substrate. Polarized near-edge X-ray absorption fine structure measurements revealed that the polythiophene main chains are preferentially orientated along periodic facet/terrace nanostructures on the step-bunched substrate, whereas less anisotropy was found on a flat substrate. The step-bunched Si substrate has been proved to be effective for controlling the in-plane molecular arrangement in the polymer thin film.

Original languageEnglish
Pages (from-to)11605-11610
Number of pages6
JournalLangmuir
Volume24
Issue number20
DOIs
Publication statusPublished - 2008 Oct 21
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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