Structures and properties of poly(3-alkylthiophene) thin-films fabricated though vapor-phase polymerization.
Organic semiconducting polymer thin-films of 3-hexylthiophene, 3-octylthiophene, 3-decylthiophene, containing highly oriented crystal were fabricated by gas-phase polymerization using the CVD technique. These poly(3-alkylthiophene) films had a crystallinity up to 80%, and possessed a Hall mobility up to 10 cm2/Vs. The degree of crystalinity and the mobility values increased as the alkyl chain length increased. The crystal structure of the polymers was composed of stacked layers constructed by a side-by-side arrangement of alkyl chains and in-plane pi-pi stacking. These thin films are capable of being applied to organic electronics as the active materials used in thin-film transistors and organic photovoltaic cells.
School of Advanced Materials Engineering, Kookmin University, Seoul 136-702, Korea.
Ji-Woong
JW
Back
Eun-Ah
EA
Song
Keum-Joo
KJ
Lee
Youn-Kyung
YK
Lee
Chae-Ryong
CR
Hwang
Sang-Hyun
SH
Jo
Woo-Gwang
WG
Jung
Jin-Yeol
JY
Kim