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.
Titolo: | Evidence of the Exciton-Plasma Transition in the Emission Spectra of GaSe |
Autori: | |
Data di pubblicazione: | 1986 |
Rivista: | |
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. |
Handle: | http://hdl.handle.net/11369/4533 |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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