We present luminescence spectra of gallium selenide at 2 K in which a slow and continuous evolution from excitonic recombination to an electron-hole plasma emission is observed when the excitation intensity is increased. We find a small red-shift and a broadening of the direct exciton emission line which is followed by its disappearing. We explain these results with a model which takes into account the electron-hole correlation.

Evidence of the Exciton-Plasma Transition in the Emission Spectra of GaSe

CAPOZZI, VITO GIACOMO
1986

Abstract

We present luminescence spectra of gallium selenide at 2 K in which a slow and continuous evolution from excitonic recombination to an electron-hole plasma emission is observed when the excitation intensity is increased. We find a small red-shift and a broadening of the direct exciton emission line which is followed by its disappearing. We explain these results with a model which takes into account the electron-hole correlation.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11369/4533
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