Photoluminescence from the even-parity state in polythiophene derivative

被引：3
|
作者：
Kobayashi, T
Hamazaki, J
Arakawa, M
Kunugita, H
Endo, T
Rikukawa, M
Sanui, K
Ema, K [1 ]
机构：
[1] Sophia Univ, Dept Phys, Chiyoda Ku, Tokyo 1028554, Japan
[2] CREST JST, Dept Phys, Kawaguchi, Saitama 3320012, Japan
[3] Sophia Univ, Dept Chem, Chiyoda Ku, Tokyo 1028554, Japan
[4] CREST JST, Dept Chem, Kawaguchi, Saitama 3320012, Japan
来源：
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2001年 / 70卷 / 09期
关键词：
conjugated polymer; polythiophene; photoluminescence; even-parity state; vibronic structure;
D O I：
10.1143/JPSJ.70.2517
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The time-resolved photoluminescence spectrum of a polythiophene derivative has been analyzed from the viewpoint of the vibronic structure and its dynamics. We found that the photoluminescence (PL) originates from two vibronic coupled states which consist of the odd-parity 1B(u) component and the even-parity 2A(g) component. Since the fluorescences from the two states have different time constants and different vibronic structures, the PL shows a biexponential decay and a spectral change.
引用
收藏
页码：2517 / 2520
页数：4
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