Nanotransfer of the polythiophene molecular alignment onto the step-bunched vicinal Si(111) substrate.
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.
Onoki
Ryo
R
Department of Chemistry, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan.
Yoshikawa
Genki
G
Tsuruma
Yuki
Y
Ikeda
Susumu
S
Saiki
Koichiro
K
Ueno
Keiji
K