Electronic structure and optical properties of (Ga70La30) 2S300 and (Ga69. 75La29. 75Er0. 5) 2S300 single crystals, novel light-converting materials
Electronic structure and optical properties were studied for novel (Ga 70 La 30) 2 S 300 and
(Ga 69.75 La 29.75 Er 0.5) 2 S 300 single crystals synthesized by solution-melt technique. In
particular, X-ray photoelectron spectroscopy (XPS) was used to measure core-level binding
energies and valence-band spectra for as-synthesized and Ar+ ion-irradiated surfaces of
these crystals. Presented XPS measurements show that the (Ga 70 La 30) 2 S 300 and (Ga
69.75 La 29.75 Er 0.5) 2 S 300 single crystals are rather stable in relation to Ar+ ion …
(Ga 69.75 La 29.75 Er 0.5) 2 S 300 single crystals synthesized by solution-melt technique. In
particular, X-ray photoelectron spectroscopy (XPS) was used to measure core-level binding
energies and valence-band spectra for as-synthesized and Ar+ ion-irradiated surfaces of
these crystals. Presented XPS measurements show that the (Ga 70 La 30) 2 S 300 and (Ga
69.75 La 29.75 Er 0.5) 2 S 300 single crystals are rather stable in relation to Ar+ ion …
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