Premium
Magnetic‐Resonant Modulation of Photoconductivity of Crystalline Charge Transfer Complexes. Anthracene‐Tettacyanbenzene
Author(s) -
Frankevich E. L.,
Tribel M. M.,
Sokolik I. A.,
Pristupa A. I.
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.2220870144
Subject(s) - anthracene , photoconductivity , zeeman effect , photocurrent , perylene , triplet state , excitation , excited state , zeeman energy , microwave , materials science , magnetic field , fluorescence , chemistry , photochemistry , optoelectronics , atomic physics , physics , optics , quantum mechanics
A magnetic‐resonant modulation of the photoconductivity of polycrystalline samples of CT complex anthracene–TCNB is observed. The modulation is due to microwave induced transitions between Zeeman sublevels of the excited triplet CT state. The magnetic resonance spectrum of the CT triplet state is registered, the lifetime of the latter is estimated to be about 10 −9 s. Switching‐on the resonant microwave field decreases the photoconductivity. The nonresonant effect of the permanent magnetic field on photocurrent and fluorescence of anthracene–TCNB crystals is investigated. A scheme is given representing the processes of the electronic excitation energy conversion in the anthracene–TCNB CT complex.