Spectrally- and time-resolved fluorescence emission of indole during solvent relaxation: a quantitative model
Spectrally- and time-resolved fluorescence emission of indole during solvent relaxation: a quantitative model
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DOI：
10.1016/s0009-2614(00)00460-7
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发表时间：
2000-06-02
影响因子：
2.8
通讯作者：
Brand, L
中科院分区：
文献类型：
--
作者：
Toptygin, D;Brand, L
激发的荧光溶质周围的极性溶剂的弛豫导致荧光光谱中的连续时间依赖性红移。静态非均匀增宽也可以产生时变荧光光谱。这两种效应可以区分均匀静电弛豫过程中的荧光定量模型。该模型描述了瞬时光谱的演变以及在任何固定波长处观察到的强度的时间变化。该模型是在4 nm的光谱和65 ps的时间分辨率与使用吲哚在无水甘油中的溶液获得的实验数据吻合得很好。(C)2000 Elsevier Science B.V.保留所有权利。
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.