Fluorescence Lifetime as a Ruler: Quantifying Sm 3+ Doping Levels in Na 4 La 2 (CO 3) 5 Crystals via Time-Resolved Luminescence Decay. - Sun, Shijian; Liu, Mengquan; Li, Zheng; Cheng, Junqiang; Li, Dechuan (Coatings (2079-6412), 2025)