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Spontaneous emission due to exciton—electron scattering in semiconductors
Author(s) -
Hönerlage B.,
Klingshirn C.,
Grun J. B.
Publication year - 1976
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220780219
Subject(s) - exciton , scattering , electron , atomic physics , semiconductor , biexciton , halide , inelastic scattering , luminescence , electron scattering , chemistry , condensed matter physics , materials science , molecular physics , physics , optics , optoelectronics , inorganic chemistry , quantum mechanics
The temperature dependent lineshape of luminescence lines which are due to inelastic scattering of electrons with free excitons is calculated. The results are compared with experimental findings in ZnO, CdS, CdSe, the copper halides, and, especially, with new experiments on CuBr. For the latter substances approximate values of electron and hole masses are given: m e = 0.5 m 0 , m h = 2.0 m 0 for CuCl, m e = 0.28 m 0 , m h = 1.4 m 0 for CuBr, and m e = 0.3 m 0 , m h = 2.4 m 0 for CuI. In CuBr a new line is found which may be due to exciton—hole or exciton—exciton intraband scattering.