On the thermal broadening of zero-phonon impurity lines in absorption and fluorescence spectra
β Scribed by Hsu, D.; Skinner, J. L.
- Book ID
- 121091272
- Publisher
- American Institute of Physics
- Year
- 1984
- Tongue
- English
- Weight
- 968 KB
- Volume
- 81
- Category
- Article
- ISSN
- 0021-9606
- DOI
- 10.1063/1.447874
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## Abstract The temperature dependences of the shapes, widths, positions, and intensities of the zeroβphonon lines in the fluorescence spectra of 1.12βbenzperylene and coronene in a normal hexane matrix are investigated experimentally. The results obtained are discussed in terms of the theory of th
## Conditions for breakdown of the structural and intensity mirror symmetry relationship between the one-phonon spectra in the absorption and fluorescence spectra of molecular impurities arc established. A criterion is giv-en for determining when the contribution of quadratic coupling to the zero-