Photoinduced electron transfer and enhanced fluorescence Of C60 pearl-necklace polymers

被引：9
|
作者：
Xiao, LX [1 ]
Shimotani, H
Dragoe, N
Sugita, A
Saigo, K
Iwasa, Y
Kobayashi, T
Kitazawa, K
机构：
[1] Cent S Univ, Inst Met Phys Chem & Mat Chem, Changsha 410083, Hunan, Peoples R China
[2] Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan
[3] Univ Tokyo, Dept Adv Mat, Bunkyo Ku, Tokyo 1138656, Japan
[4] Univ Tokyo, Dept Phys, Bunkyo Ku, Tokyo 1138656, Japan
[5] Univ Tokyo, Dept Appl Chem, Bunkyo Ku, Tokyo 1138656, Japan
来源：
CHEMICAL PHYSICS LETTERS | 2003年 / 368卷 / 5-6期
关键词：
D O I：
10.1016/S0009-2614(02)01924-3
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Photoinduced electron transfer (PET) and enhancement of fluorescence were observed simultaneously for a series of donor-acceptor-type C-60 pearl-necklace polymers, contradicting the conventional notion that the formation of charge-separated state derived from electron transfer (ET) causes the quenching of fluorescence. The quantum yield Phi(f) of the present polymers was one to two orders of magnitude larger than that of the pristine C60. On the other hand, light-induced electron spin resonance (LESR) signals, exhibiting signatures of both the aromatic diamine component cation and the C-60 anion, implied the formation of an ion-radical pair caused by the PET. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：738 / 744
页数：7
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