The equilibrium geometries and the electronic structures for different locations of H atoms and ions in GaAs have been evaluated by first-principle local density functional methods. Discrete near-edge levels are induced in the bandgap by the interactions of hydrogen with the GaAs lattice, as well as by charge effects in the case of H ions. Radiative transitions between those conduction-band and valence-band near-edge states account for the main features of the emission bands observed in the photoluminescence spectra of hydrogenated III-V compounds.

Near-edge states induced by hydrogen inclusion in gallium arsenide

GIANNOZZI, Paolo
1998-01-01

Abstract

The equilibrium geometries and the electronic structures for different locations of H atoms and ions in GaAs have been evaluated by first-principle local density functional methods. Discrete near-edge levels are induced in the bandgap by the interactions of hydrogen with the GaAs lattice, as well as by charge effects in the case of H ions. Radiative transitions between those conduction-band and valence-band near-edge states account for the main features of the emission bands observed in the photoluminescence spectra of hydrogenated III-V compounds.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11390/666946
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