Photoinduced Effects in Single Crystals of PbO-MoO<sub>3</sub> System

Bochkova, T. M.; Bondar, D. S.; Trubitsyn, M. P.; Volnianskii, M. D.; Volnyanskii, D. M.

doi:10.12693/aphyspola.141.400

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“…The changes themselves are not significant in magnitude. In general, these results correlate with the data obtained for Pb2MoO5 crystals grown from a stoichiometric charge [9]. Irradiation with UV light from a mercury lamp did not lead to noticeable changes in the transmission of crystals both before and after heat treatment.…”

Section: Resultssupporting

confidence: 88%

“…The calculated value of the indirect band gap is 2.64 eV, while the minimal value of direct gap is 2.85 eV. The optical transmission of Pb2MoO5 crystals obtained from the charge of stoichiometric composition was studied in [9]. It was found that the processes associated with a change in optical transmission under the of heat treatment of the crystals in air and in vacuum at 600-700°C and UV irradiation differ significantly in PbMoO4 and Pb2MoO5 crystals.…”

Section: Resultsmentioning

confidence: 96%

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The influence of PbO excess in the charge on the optical transmission of Pb2MoO5 crystals

Bochkova

Trubitsyn²,

Volnianskii³

et al. 2022

JPhysElectron

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The single crystals of acousto-optic Pb2MoO5 were grown by the Czochralski technique from a charge of stoichiometric composition and with an excess of lead oxide. Optical transmission spectra of these crystals were measured in the visible wavelength range. The effect of the heat treatment in air and in vacuum was considered. Changes in the valence state of a part of Mo6+ ions to Mo5+ and possible microinclusions of foreign phases are supposed to be responsible for the decrease in the optical transmission of crystals obtained from the charge with PbO excess.

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Section: Resultssupporting

confidence: 88%

Section: Resultsmentioning

confidence: 96%