An efficient and thermally stable Cr3+-activated Y2GdSc2Al2GaO12 garnet phosphor for NIR spectroscopy applications

A new broadband Y 2 GdSc 2 Al 2 GaO 12 :Cr 3+ NIR phosphor was successfully prepared, and its critical doping concentration can reach up to 8 mol%, possessing a higher absorption efficiency (49.54%) and excellent thermal stability (90.97%@423 K).