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Diffusion theory of luminescent emission from a doped organic solid
Author(s) -
Selsby R. G.,
Swenberg C. E.
Publication year - 1972
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220500127
Subject(s) - exciton , luminescence , impurity , diffusion , doping , excitation , energy transfer , materials science , diffusion theory , atomic physics , chemical physics , molecular physics , condensed matter physics , chemistry , optoelectronics , thermodynamics , physics , quantum mechanics
Using a rate equation for exciton diffusion, with a new theory for the probability per second of exciton capture by impurity traps, the time dependence of the luminescent emission from a doped organic solid for both impurity and host is calculated. The satisfactory agreement of this theory with recent measurements indicates that exclusion of diffusion as the major means of excitation energy transfer is premature.