Broadband photoluminescence toward NIR II region and stable green ceramic pigments based on a novel NaBaScSi2O7: xCr silicate phosphor

Cr 3+ -activated near-infrared (NIR) phosphors are the most promising materials for commercialization. However, the emission of most Cr 3+ -activated phosphors typically located in the NIR-I region and achieving luminescence towards NIR-II region...