scholarly journals synchronously excited (fluorescence, phosphorescence) spectrum

2008 ◽  
Keyword(s):  
Phosphorescence Spectrum

Exciton Phosphorescence of p-Terphenyl Crystal at 300 K

1980 ◽  
Vol 35 (8) ◽  
pp. 823-827 ◽  
Author(s):  
Eizi Morikawa ◽  
Masahiro Kotani
Keyword(s):  
Energy Transfer ◽  
Absorption Coefficient ◽  
Phosphorescence Spectrum ◽  
Delayed Fluorescence ◽  
Triplet Energy ◽  
Diffusion Limited ◽  
Exciton Lifetime ◽  
Glassy Solution ◽  
Vibrational Progression ◽  
Triplet Energy Transfer

Abstract Exciton phosphorescence from pure p-terphenyl crystals was observed at 300 K. The 0-0 band of the phosphorescence spectrum was found at 20.4 X 103 cm-1 . The vibrational progression of 1.46 x 103 cm-1 is present. The maximum exciton lifetime observed was 200 ms. The excitation spectrum of the exciton phosphorescence differs considerably from that observed in glassy solution, but is poorly structured as well. The absorption coefficient near the origin is small. The absence of sensitized delayed fluorescence from doped tetracene suggests that the triplet energy transfer to this guest is not diffusion limited.

Note on the Influence of External Heavy-Atom Perturbers on the Phosphorescence Spectrum of Triphenylene

1984 ◽  
Vol 39 (11) ◽  
pp. 1145-1146 ◽  
Author(s):  
M. Zander
Keyword(s):  
Complex Formation ◽  
Methyl Iodide ◽  
Ground State ◽  
Chemical Nature ◽  
Heavy Atom ◽  
Phosphorescence Spectrum ◽  
Symmetry Reduction ◽  
Spectral Changes ◽  
Silver Perchlorate ◽  
Phosphorescence Spectra

Spectral changes in symmetry-forbidden phosphorescence spectra observed in the presence of external heavyatom perturbers may have quite different causes depending on the chemical nature of the perturber. This is exemplified using triphenylene as the phosphorescent compound and methyl iodide and silver Perchlorate respectively as the perturber. Intensification of the 0-0 band of the symmetry-forbidden phosphorescence spectrum of triphenylene by silver Perchlorate is assumed to result from symmetry-reduction of the hydrocarbon by ground-state complex formation with silver Perchlorate.

Phosphorescence Spectrum of Anthracene Crystals

1967 ◽  
Vol 47 (1) ◽  
pp. 344-345 ◽  
Author(s):  
D. F. Williams
Keyword(s):  
Phosphorescence Spectrum

On the analysis of the phosphorescence spectrum of

1996 ◽  
Vol 29 (21) ◽  
pp. 5077-5085 ◽  
Author(s):  
Fabrizia Negri ◽  
Giorgio Orlandi
Keyword(s):  
Phosphorescence Spectrum
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