Spectrally- and time-resolved fluorescence emission of indole during solvent relaxation: a quantitative model

被引：47

作者：

Toptygin, D ^{[1
]}

Brand, L ^{[1
]}

机构：

[1] Johns Hopkins Univ, Dept Biol, Baltimore, MD 21218 USA

来源：

CHEMICAL PHYSICS LETTERS | 2000年 / 322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)00460-7

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：

Relaxation of polar solvents around excited fluorescent solutes results in a continuous time-dependent red shift in the fluorescence spectrum. Static heterogeneous broadening can also produce time-variant fluorescence spectra. The two effects can be distinguished by a quantitative model of fluorescence during homogeneous electrostatic relaxation. The model describes the evolution of the instantaneous spectrum and the time variation of the intensity observed at any fixed wavelength. The model is in good agreement with the experimental data obtained using a solution of indole in anhydrous glycerol at 4 nm spectral and 65 ps temporal resolution. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：496 / 502

页数：7

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