Fig. 1: Optimization of the NIR emission.
From: Strategies to approach high performance in Cr3+-doped phosphors for high-power NIR-LED light sources
a Coordination of (Sc/Cr)O6 in CSSG. b Photoluminescence (PL) and photoluminescence excitation (PLE) spectra of CSSG:3%Cr3+. c Relative PL intensities of the samples with and without fluxes sintered in air and a CO atmosphere. d PL intensities of CSSG:3%Cr3+, xwt% Li2CO3 (x = 0.5, 0.8, 1, 1.5, 2, 3, 4, 5, 6). e PL intensities of CSSG:y%Cr3+, 1 wt% Li2CO3 (y = 1, 2, 3, 4, 5, 6).
