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A Kinetic Model of Triplet Exciton Dynamics in Organic Crystals with Discrete Trapping Levels
Author(s) -
Zboiński Z.
Publication year - 1978
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.2220870232
Subject(s) - phosphorescence , trapping , kinetic energy , excitation , exciton , transient (computer programming) , triplet state , fluorescence , dynamics (music) , molecular physics , chemistry , atomic physics , materials science , chemical physics , physics , excited state , optics , classical mechanics , condensed matter physics , quantum mechanics , ecology , biology , computer science , acoustics , operating system
A simple kinetic model is developed to provide expressions for interpreting data from delayed fluorescence and phosphorescence experiments. The expressions for steady state, transient, and chopped light excitations are obtained for a system containing several triplet trapping levels which are well separated in energy. The interrelation of the experimental data obtained for the three modes of excitation enables the evaluation of depths, triplet lifetimes, and other parameters of the trapping levels.