Energy Transfer Among Like and Unlike Molecules in Solution VI. Effect of the Mediation of Donor Molecules Upon the Electronic Excitation Energy Transfer in Binary Systems

1982 ◽  
Vol 37 (1) ◽  
pp. 64-68 ◽  
Author(s):  
A. Kawski ◽  
H. Szmaciński

Abstract The effect of an interdonor energy transfer is investigated on the following donor-acceptor systems in thin rigid cellulose acetate films: anthracene and tetracene (I), 9-methylanthracene and 2-aminobenzophenone (II), 9,10-diphenylanthracene and 2-aminobenzophenone (III). The donor quantum yield and fluorescence anisotropy in systems I-III are in good agreement with theoretical predictions for a model of a multi-step excitation energy transfer process. In mixed two-component solutions the donor fluorescence anisotropy is higher than in single-component solutions, indicating an interdonor excitation transfer preceding the donor-acceptor transfer in these binary systems.

1977 ◽  
Vol 32 (12) ◽  
pp. 1339-1343
Author(s):  
J. Kamiński ◽  
A. Kawski

Abstract Electronic Excitation Energy Transfer among like Molecules in Solution A theory of the excitation energy transfer among like (bomotransfer) molecules in solution, based on a shell model of the luminescent centre and on the assumptions given in our previous paper * is elaborated. Expressions for the time-dependent concentration depolarisation of the photo-luminescence (for emission anisotropy) in the sphere-and the shell-model are obtained. The expression for the concentration-dependent depolarisation is compared with the experimental results for five luminescent compounds in rigid cellulose acetate films. Good agreement was found with the equation which takes into account the excitation energy remigration.


2008 ◽  
Vol 128 (7) ◽  
pp. 074505 ◽  
Author(s):  
Burkhard Fückel ◽  
Andreas Köhn ◽  
Michael E. Harding ◽  
Gregor Diezemann ◽  
Gerald Hinze ◽  
...  

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