Structure, photoluminescence properties, and energy transfer phenomenon in Sm3+/Eu3+ co-doped CaTiO3 phosphors

The energy transfer from Sm 3+ and Eu 3+ due to dipole–dipole interaction, variation in emission intensity of Sm 3+ and Eu 3+ peaks with varying concentration of Eu 3+ and thermal stability of 2Sm 3+ , 2.5Eu 3+ and 2Sm 3+ /2.5Eu 3+ co-doped CaTiO 3 phosphors.