Luminescence of benzoic acid polycrystals doped with n-terphenyl and n-quaterphenyl
Journal Article
·
· Optics and Spectroscopy
OSTI ID:136080
- St. Petersburg State Univ. (Russian Federation); and others
The luminescence and luminescence excitation spectra of benzoic acid polycrystals, terphenyl, quaterphenyl, and benzoic acid doped with terphenyl and quaterphenyl are studied. Blue shifts of the fluorescence and fluorscence excitation spectra are found. These shifts result from nonplanar entering of polyphenyl molecules into the unit cell of the benzoic acid dimmers around the acid carbonyl groups. In the impurity polycrystals at room temperature, the internal conversion from the triplet level efficiently occurs resulting in the absence of phosphorescence. 12 refs., 4 figs.
- OSTI ID:
- 136080
- Journal Information:
- Optics and Spectroscopy, Vol. 77, Issue 4; Other Information: PBD: Oct 1994; TN: Translated from Optika i Spektroskopiya; 77: No. 4, 593-596(1994)
- Country of Publication:
- United States
- Language:
- English
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