Wide near-infrared II emissions and LED application of Y2Ti2O7: Cr3+/Yb3+/Nd3+ phosphors. - Han, Zhanwen; Yu, Hongquan; Cong, Shanshan; Liu, Tianshuo; Sun, Jiashi; Li, Xiangping; Chen, Baojiu (Applied Physics A: Materials Science & Processing, 2023)