Phonon-assisted transitions in gallium-phosphide modulation spectra
- 15 August 1975
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 12 (4), 1371-1376
- https://doi.org/10.1103/physrevb.12.1371
Abstract
The intrinsic absorption edge of GaP has been investigated by piezomodulation spectroscopy between 1.6 and 300 °K. Structures due to indirect transitions assisted by Languedoc, 34060 Montpellier Cedex, France very well resolved. An analysis of the data gives the binding energy of the indirect exciton at 13 ± 1 meV. The forbidden energy gap decreases from 2.346 eV at 1.6 °K to 2.269 eV at 300 °K.Keywords
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