Cationic composition engineering in double perovskite XLaLiTeO6:Eu3+(X = Ba, Sr, Ca, and Mg) toward efficient and thermally stable red luminescence for domestic white-LEDs

The cationic composition engineering is conducted in XLaLiTeO 6 :Eu 3+ (X = Ba, Sr, Ca, and Mg), leading to the high quantum efficiency of MgLaLiTeO 6 :Eu 3+ , and the optimization mechanism provides the baselines for the high-quality Eu 3+ doped phosphors.