Journal ArticleDOI
Electron-hole plasma luminescence in GaP
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TLDR
In this article, an experimental investigation of the luminescence of strongly excited pure GaP has been performed as function of input light intensity and temperature, and three distinct situations are observed: the spectrum consists of a band, due to the recombination of the electron-hole liquid (EHL), coexisting with an exciton-rich gas phase.Abstract:
An experimental investigation of the luminescence of strongly excited “pure” GaP has been performed as function of input light intensity and temperature. Three distinct situations are observed. For T K , the spectrum consists of a band, due to the recombination of the electron-hole liquid (EHL), coexisting with an exciton-rich gas phase. At T ≳ 40 K , the EHL band is still apparent, but the gas has evolved into an electron-hole plasma (EHP). Finally, at T > 60 K , only the EHP recombination remains and exhibits a density dependent lineshape as expected. The density at which the metal-insulator Mott transition occurs is compared to the calculations using the Debye-Huckel criterion.read more
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Interaction of excitons in indirect solid solutions of In1−xGaxP at high levels of excitation
O. N. Ermakov,M. V. Chukichev +1 more
TL;DR: In this article, the cathode luminescence spectra of GaP and solid solutions of In1−xGaxP (with an indirect energy band structure) obtained by liquid-phase epitaxy are investigated at T=77 and 9°K.
References
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Journal ArticleDOI
Excitonic Molecule Bound to the Isoelectronic Nitrogen Trap in GaP
TL;DR: In this paper, two sets of sharp emission lines associated with the photoluminescence spectrum of the isoelectronic nitrogen trap in GaP are unambiguously identified as the recombination of a second exciton bound to this center with an energy of 10 meV.
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Observation of Electron-Hole Liquid in GaP
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Electron-hole liquid in GaP
TL;DR: In this paper, the critical density and the condensation enery of very pure GaP spectra are estimated. But they are only available between 4.2 and 20 K and the critical densities are not known.
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The complex form of donor energy levels in gallium phosphide
TL;DR: In this paper, a variable gamma model was applied to the present knowledge of donor excited states obtained from electronic Raman scattering, bound exciton 'two-electron' luminescence satellites and direct photoexcitation spectra.
Journal ArticleDOI
Electron-hole liquid in GaP
TL;DR: In this article, the luminescence of strongly excited GaP was reported and a new emission band was attributed to the electron-hole liquid, and the carrier density and binding energy of the liquid were compared to calculations.