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.
Titolo: | FLUORESCENCE LIFETIMES IN THE BIPHENYL-TETRACYANOBENZENE CRYSTAL DOPED WITH TCNQ |
Autori: | |
Data di pubblicazione: | 1990 |
Rivista: | |
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. |
Handle: | http://hdl.handle.net/11577/125096 |
Appare nelle tipologie: | 01.01 - Articolo in rivista |
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