Enhancement of 1.5 μm emission in Ce3+/Li+-codoped YPO4:Yb3+, Er3+ phosphor

• DOI: 10.1063/1.4900990
• Publication Date: 2014-11-06T01:30:42Z
• Authors: Xuejun Gao; Xiaohai Liu; Qin Wen; Xiaoliang Yang; Siguo Xiao
• Keywords: Photon Upconversion; Coprecipitation

YPO4:Yb3+, Er3+ near infrared luminescent materials have been prepared with a co-precipitation method. It is found that Ce3+, Li+ ions co-doped into the Y0.59Yb0.4Er0.01PO4 can result in 1530 nm emission 20 times of enhancement as compared Y0.58Yb0.4Er0.01Ce0.01PO4 counterpart, meaning it promising phosphor wide application prospects. The mechanism ascribed to high efficiency energy transfer from Ce3+ and modification crystal field around Yb3+ caused by doped ions.