Investigation of the internal conversion time of the chlorophyll a from S3, S2 to S1

被引：48

作者：

Shi, Y ^{[1
]}

Liu, JY ^{[1
]}

Han, KL ^{[1
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Liaoning, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2005年 / 410卷 / 4-6期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/j.cplett.2005.05.017

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：

By using femtosecond time-resolved stimulated emission pumping fluorescence depletion (FS-TR-SEP-FD), we present a fluorescence depletion study of chlorophyll a (Ch1 a) in various solvent environments. Internal conversion times (IC) in different solvents are observed. It is found that all the S-3 and S-2 to S-1 transition processes are extremely fast, and that the time constants of these processes range from 100 to 260 fs. In aprotic solvent, the rate of IC decreases with an increasing of solvent polarity. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：260 / 263

页数：4

共 24 条

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