Transient optical emission spectra of biphenyl-1,2,4,5-tetracyanobenzene crystal doped with TCNQ have been investigated in the (77-300)K temperature range. Host prompt fluorescence lifetimes have been measured by cross-correlation phase fluorometry. The decay signal is fitted by a biexponential function whose coefficients are strongly dependent on temperature. A thermal activation energy of 300 cm-1 for the diffusion of singlet exciton has been determined.

FLUORESCENCE LIFETIMES IN THE BIPHENYL-TETRACYANOBENZENE CRYSTAL DOPED WITH TCNQ

AGOSTINI, GIANCARLO;GIACOMETTI, GIOVANNI;TOFFOLETTI, ANTONIO;PASIMENI, LUIGI
1990

Abstract

Transient optical emission spectra of biphenyl-1,2,4,5-tetracyanobenzene crystal doped with TCNQ have been investigated in the (77-300)K temperature range. Host prompt fluorescence lifetimes have been measured by cross-correlation phase fluorometry. The decay signal is fitted by a biexponential function whose coefficients are strongly dependent on temperature. A thermal activation energy of 300 cm-1 for the diffusion of singlet exciton has been determined.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/125096
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