Exciplex formation with distyrylbenzene derivatives and N,N-dimethylaniline

被引：14
|
作者：
Wang, SJ
Bazan, GC [1 ]
机构：
[1] Univ Calif Santa Barbara, Ctr Polymer & Organ Solids, Dept Chem, Santa Barbara, CA 93106 USA
[2] Univ Calif Santa Barbara, Ctr Polymer & Organ Solids, Dept Mat, Santa Barbara, CA 93106 USA
来源：
CHEMICAL PHYSICS LETTERS | 2001年 / 333卷 / 06期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/S0009-2614(00)01375-0
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：
Exciplex formation between N,N-dimethylaniline and a series of distyrylbenzene derivatives with varying structures was studied by cyclic voltammetry and fluorescence spectroscopy. The frequency of exciplex emission obeys the Weller equation. Increasing the electron affinity of the acceptor red-shifts emission, with a concomitant decrease in fluorescence efficiency. Increasing the conjugation length of the acceptor decreases its excited state singlet energy more quickly than its electron affinity. As a result, exciplex formation is discouraged with increasing conjugation length. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：437 / 443
页数：7
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