A strategy to achieve efficient green-emission dual-mode luminescence of Yb3+,Er3+ doped NaBiF4

• 作者: Jin-Hui Xie Jue Wang Gui-Hua Qiu Xi-Bing Li Wen-Tao Huang Rui-Rong Zhang Tong Lin Li-Xi Wang Qi-Tu Zhang
• 来源期刊: 稀有金属（英文版）
• 年，卷（期）: 2021,（8）
• 所属期刊栏目: ORIGINAL ARTICLES
• 页码范围: 2040-2048
• 页数: 9页
• 语种: 英文

摘要

A series of hexagonal phase NaBiF4∶ xYb3+,yEr3+ were successfully synthesized by solvothermal method.The morphology,phase structure,up-conversion luminescence and down-conversion luminescence proper-ties of Yb3+ and Er3+ doping concentration and the energy transfer mechanism were studied.It shows that the doping of Yb3+ and Er3+ does not cause the phase transition of NaBiF4,but influences its morphology.In the NaBiF4∶Yb3+,Er3+,Yb3+ can transfer energy with Er3+,enhanc-ing up-conversion green emission.With Yb3+ doping concentration increasing,the up-conversion red-green ratio will increase while the down-conversion intensity of the green emission decreases and that of the red emission increases.Considering the potential application of NaBiF4∶xYb3+,yEr3+ phosphors in optical illumination,the ther-mal stability was carried out.