A single-phase full-color phosphor Sr2Ca2La(PO4)3O∶Eu2+,Tb3+,Mn2+∶Photoluminescence and energy transfer

• 作者: Ju Cheng Xintian Bian Zhangyin Zhai Maryam Sardar Jian Lu
• 来源期刊: 稀土学报（英文版）
• 年，卷（期）: 2022,（4）
• 所属期刊栏目: SPECTROSCOPY,LUMINESCENCE AND PHOSPHORS
• 页码范围: 541-550
• 页数: 10页
• 语种: 英文

摘要

A single-phase full-color emitting phosphor Sr2Ca2La(PO4)3O∶Eu2+,Tb3+,Mn2+was synthesized by the high temperature solid-state method.The phase formation,luminescence properties,thermal stability,and energy transfer from Eu2+toTb3+and Eu2+to Mn2+in Sr2Ca2La(PO4)3O were investigated in details.Tunable emission color from blue to blueish green or orange can be observed under 365 nm near-ultraviolet excitation based on the energy transfer from Eu2+to Tb3+or Mn2+ions by varying the ra-tio of Eu2+/Tb3+or Eu2+/Mn2+ions.White light was obtained with chromaticity coordinates of(0.3558,0.3500)in the Sr2Ca2La(PO4)3O∶0.04Eu2+,0.08Tb3+,0.40Mn2+phosphor,suggesting their potential ap-plications in white light emitting diodes.