Fig. 4: Luminescence dependence on temperature for CSSG:6%Cr3+.
From: Strategies to approach high performance in Cr3+-doped phosphors for high-power NIR-LED light sources

a PL and b normalized PL spectra. c Integrated PL intensities for the sample sintered in air and the optimized sample. The dotted line is the fitting result for the Arrhenius equation. d Peak positions and FWHM values. The temperature ranges from 25 to 300 °C. e PL and PLE spectra at 77 K.