Far-red-emitting Eu 3+ -doped Ca 2 SrWO 6 double perovskite: Judd–Ofelt analysis and application in plant cultivation lighting

temperature-dependent photoluminescence (TDPL). The CIE color coordinates (0.646, 0.353), with a very high color purity of 92%, show a strong far-red emission response. Hence, the collective results reveal strong potential of the phosphor under study in phosphor-converted light-emitting diodes (pc-LEDs) for plant-growth lighting applications.