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Triplet Exciton Decay Processes in Crystalline Tetracene
Author(s) -
Arden W.,
Kotant M.,
Peter L. M.
Publication year - 1976
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.2220750226
Subject(s) - tetracene , exciton , annihilation , reaction rate constant , constant (computer programming) , time constant , atomic physics , chemistry , physics , condensed matter physics , anthracene , photochemistry , nuclear physics , kinetics , quantum mechanics , computer science , programming language , electrical engineering , engineering
The decay of triplet excitons in crystalline tetracene is investigated. The monomolecular decay is characterised by a rate constant β t ≈ 5 × 10 3 s −1 and the bimolecular annihilation of triplet excitons is characterised by a rate constant γ tt ≈ 2 × 10 −11 cm 3 s −1 . The interaction between mobile triplet excitons and trapped holes is characterised by a rate constant γ th ≈ 1 × 10 −11 cm 3 s −1 . These values differ by two orders of magnitude from previous estimates. Some possible reasons for this are discussed.