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Excitation spectroscopy on the M-band of red HgI2

Authors
Journal
Solid State Communications
0038-1098
Publisher
Elsevier
Publication Date
Volume
28
Issue
4
Identifiers
DOI: 10.1016/0038-1098(78)90436-2

Abstract

Abstract The luminescence of red HgI 2 is investigated as a function of excitation intensity and -wavelength. At low excitation, emission is due to free and bound exciton recombination, at high levels a “M-band” is dominating. This M-band is partially ascribed to biexciton decay, this assumption being supported by resonances found in the excitation spectra. The biexciton binding energy is determined to be 6±1 meV.

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