Dispersivity of carrier transport related with molecular arrangement in regioregular poly(3-alkylthiophene)

被引:3
作者
Takashima, W
Nagamatsu, S
Pandey, SS
Endo, T
Yoshida, Y
Tanigaki, N
Rikukawa, M
Yase, S
Kaneto, K
机构
[1] Kyushu Inst Technol, Dept Comp Sci & Elect, Iizuka, Fukuoka 8208502, Japan
[2] Natl Inst Mat & Chem Res, Tsukuba, Ibaraki 3058565, Japan
[3] Sophia Univ, Dept Chem, Chiyoda Ku, Tokyo 1028554, Japan
关键词
UV-Vis-NIR absorption; X-ray diffraction; transport measurements; polythiophene and derivatives;
D O I
10.1016/S0379-6779(00)01194-2
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The carrier transport was investigated depending upon the processes of film preparation in regioregular poly(3-alkylthiophene)s (PATs). The relatively non-dispersive characteristics of photocarrier transport were obtained in drop-cast film. In spin-coated film the transient photocurrent was strong dispersive in contrast. The dispersivity was also slightly increased with the alkyl chain length. The X-ray profiles showed the large crystallinity and the absorption spectra showed the red-shift of peaks in drop-cast film. These results indicate that the dispersivity of carrier transport in PATs is strongly affected by the casting processes of PAT film.
引用
收藏
页码:563 / 564
页数:2
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