Investigation of the Cr3+ Impurity Luminescence in Proton-Irradiated β-Ga2O3.

Authors :: Davydov, V. Yu.
Smirnov, A. N.
Eliseyev, I. A.
Kitaev, Yu. E.
Sharofidinov, S. S.
Lebedev, A. A.
Panov, D. Yu.
Spiridonov, V. A.
Bauman, D. A.
Romanov, A. E.
Kozlovski, V. V.
Source :: Semiconductors; Jan2024, Vol. 58 Issue 1, p8-11, 4p
Publication Year :: 2024
Abstract: Proton irradiation of β-Ga<subscript>2</subscript>O<subscript>3</subscript> crystals has been established to lead to a significant increase in the amount of Cr<superscript>3+</superscript> ions being active in luminescence. Using angle-resolved luminescence, the features of the spectra of Cr<superscript>3+</superscript> ions were studied. The high sensitivity of photoluminescence spectra and the related selection rules to the local symmetry of Cr<superscript>3+</superscript> ions in the β-Ga<subscript>2</subscript>O<subscript>3</subscript> matrix has been found. The results obtained indicate the potential possibility of using β-Ga<subscript>2</subscript>O<subscript>3</subscript> crystals as optical dosimeters of proton irradiation. [ABSTRACT FROM AUTHOR]