Two-Level Fluorescence of Ovalene
- 1 July 1972
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 57 (1), 336-338
- https://doi.org/10.1063/1.1677968
Abstract
Ovalene fluorescence has been studied as a function of pressure (0–30 kbar) in condensed media at room and liquid nitrogen temperatures. The red shift of the α and p bands are 8 and 22 cm−1/kbar, respectively, in polymethylmethacrylate. The fluorescence kinetics are consistent with two‐level emission; the greater pressure dependence of the lifetimes compared to the relative intensities being attributed to differential level shifts and its influence on the thermal population of the adjacent singlet level.Keywords
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