Technical Physics Letters
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Cathodoluminescent properties of ceramics β-Ga2O3 obtained by gasthermal plasma synthesis
Muslimov A.E.1, Gadjiev M.Kh.2, Tyuftyaev A.S.2, Ismailov A.M.
3, Volchkov I. S.
1, Grigoriev Yu.V.1, Kanevsky V. M.
1
1Shubnikov Kurchatov Institute of Crystallography of the Kurchatov Institute of Crystallography and Photonics, Moscow, Russian Federation
2Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow, Russia
3Dagestan State University, Makhachkala, Dagestan Republic, Russia
2Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow, Russia
3Dagestan State University, Makhachkala, Dagestan Republic, Russia
Email: amuslimov@mail.ru, volch2862@gmail.com, kanev@crys.ras.ru
Ceramics β-Ga2O3 was synthesized for the first time by using the gasthermal plasma deposition method (with the synthesis rate of 2 μm/s). The results of studying its microscopic parameters, structural and phase composition, and cathodoluminescent properties are presented. The intrinsic cathodoluminescence spectrum contains only a broad blue band which, being deconvoluted, becomes divided into two bands with the maxima in the vicinity of 426 and 488 nm. The band in the vicinity of 426 nm has the highest intensity. An increase in the incident electron energy from 40 to 70 keV leads to only minor changes in the cathodoluminescence spectrum, which is caused by peculiar features of the emission centersnature. Keywords: gallium oxide, ceramics, cathodoluminescence, plasma synthesis.
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