Charge Transfer State: A New Sensitization Route for Blue‐LED‐Excitable Near‐Infrared Phosphors. - Wei, Limin; Huang, Jin‐Dou; Wang, Hong; Yan, Liqing; Dong, Yutong; He, Zhe; Xing, Mingming; Luo, Xixian; Tian, Ying (Laser & Photonics Reviews, 2025)