Open AccessNonstationary holographic currents in a β-Ga2O3 crystal at wavelength λ = 457 nm
Author(s) -
M. A. Bryushinin,
И. А. Соколов
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2103/1/012163
Subject(s) - materials science , holography , crystal (programming language) , wavelength , optics , responsivity , photoconductivity , polarization (electrochemistry) , anisotropy , electron , monoclinic crystal system , optoelectronics , physics , crystal structure , chemistry , crystallography , quantum mechanics , computer science , photodetector , programming language
We report the excitation of nonstationary holographic currents in a monoclinic gallium oxide crystal. Although the crystal is almost transparent and insulating for a visible light, the dynamic space-charge gratings are recorded and holographic currents are observed for both the diffusion and drift modes. The anisotropy along the [100] and [010] directions is revealed, namely, there is a small difference in the transport parameters and a pronounced polarization dependence of the signal. The crystal’s photoconductivity, responsivity and diffusion length of electrons are estimated for the light wavelength λ = 457 nm.