Correlation between electrical conductivity and luminescence properties in β-Ga2O3: Cr3+ and β-Ga2O3: Cr, Mg single crystals
V Vasyltsiv, A Luchechko, Y Zhydachevskyy… - Journal of Vacuum …, 2021 - pubs.aip.org
The photoluminescence, excitation, and absorption spectra as well as the electrical
conductivity of β-Ga 2 O 3: Cr and β-Ga 2 O 3: Cr, Mg single crystals were studied. The as-
grown β-Ga 2 O 3: Cr crystals had a green color, the conductivity at about 10− 2–10− 3 Ω− 1
cm− 1, and a low yield of Cr 3+ impurity luminescence. Annealing in oxygen atmosphere led
to a strong increase in Cr 3+ red luminescence yield, increase in the resistivity, and changes
in the absorption and excitation spectra. Similarly, increases in the Cr 3+ luminescence yield …
conductivity of β-Ga 2 O 3: Cr and β-Ga 2 O 3: Cr, Mg single crystals were studied. The as-
grown β-Ga 2 O 3: Cr crystals had a green color, the conductivity at about 10− 2–10− 3 Ω− 1
cm− 1, and a low yield of Cr 3+ impurity luminescence. Annealing in oxygen atmosphere led
to a strong increase in Cr 3+ red luminescence yield, increase in the resistivity, and changes
in the absorption and excitation spectra. Similarly, increases in the Cr 3+ luminescence yield …
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