Localized triplet excitations obtained by trapping of triplet excitons are investigated in the biphenyl (B)-tetracyanobenzene (TCNB) crystal by zero-field ODMR methods at low temperature (1.25 K). At high microwave power (1 W) the ODMR spectral lines are structured with new satellite lines appearing at the sides of the central peak due to forbidden transitions. Their analysis allowed us to obtain information on the quadrupole tensor components of the TCNB molecule in its lowest triplet state. © 1990.
ZERO-FIELD ODMR STUDIES OF EXCITED TRIPLETS IN THE B-TCNB CRYSTAL
CARBONERA, DONATELLA;MANIERO, ANNA LISA;
1990
Abstract
Localized triplet excitations obtained by trapping of triplet excitons are investigated in the biphenyl (B)-tetracyanobenzene (TCNB) crystal by zero-field ODMR methods at low temperature (1.25 K). At high microwave power (1 W) the ODMR spectral lines are structured with new satellite lines appearing at the sides of the central peak due to forbidden transitions. Their analysis allowed us to obtain information on the quadrupole tensor components of the TCNB molecule in its lowest triplet state. © 1990.
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