Frozen-mode small polaron quantum master equation with variational bound for excitation energy transfer in molecular aggregates

2019 ◽  
Vol 150 (22) ◽  
pp. 224110 ◽  
Author(s):  
Hung-Hsuan Teh ◽  
Bih-Yaw Jin ◽  
Yuan-Chung Cheng
Keyword(s):  
Energy Transfer ◽  
Excitation Energy ◽  
Master Equation ◽  
Small Polaron ◽  
Excitation Energy Transfer ◽  
Quantum Master Equation ◽  
Molecular Aggregates

Depolarization of Photoluminescence of Isotropic Solutions Produced by Excitation Energy Migration

1987 ◽  
Vol 42 (8) ◽  
pp. 813-818
Author(s):  
A. Kawski ◽  
J. Kamiński
Keyword(s):  
Experimental Data ◽  
Energy Transfer ◽  
Excitation Energy ◽  
Master Equation ◽  
Shell Model ◽  
Excitation Energy Transfer ◽  
Critical Distance ◽  
Energy Migration ◽  
Isotropic Solution ◽  
Fluorescence And Phosphorescence

A theory of the excitation energy transfer between like molecules in isotropic solution based on a centre or shell model of a primarily excited luminescent molecule and on the extended Förster “excitation master equation” has been elaborated. Fluorescence and phosphorescence depolarization are shown to be governed by singlet-singlet energy migration and described by the same expression. The comparison of the theoretical curve with the experimental data obtained by Gondo et al. (1975) for benzo[f]quinoline in ethanol glass at 77 K results in the following critical distance R0 for the excitation energy migration: 21.5 Å for fluorescence and phosphorescence, respectively.

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