首页|Upconversion luminescence and temperature sensing performance of Er3+ions doped self-activated KYb(MoO4)2 phosphors

Upconversion luminescence and temperature sensing performance of Er3+ions doped self-activated KYb(MoO4)2 phosphors

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
In this work,a series of self-activated KYb(MoO4)2 phosphors with various x at％Er3+doping concen-trations(x=0.5,1,3,5,8,10,15)was synthesized by the solid-state reaction method.The phase structure of the as-prepared samples was analyzed by X-ray diffraction(XRD),XRD Rietveld refinement and Fourier transform infrared(FT-IR)spectroscopy.The as-prepared samples retain the orthorhombic structure with space group of Pbcn even Er3+doping concentration up to 15 at％.High-purity upcon-version(UC)green emission with green to red intensity ratio of 55 is observed from the as-prepared samples upon the excitation of 980 nm semiconductor laser and the optimum doping concentration of Er3+ions in the self-activated KYb(MoO4)2 host is revealed as 3 at％.The strong green UC emission is confirmed as a two-photon process based on the power-dependent UC spectra.In addition,the fluo-rescence intensity ratios(FIRs)of the two thermally-coupled energy levels,namely 2H11/2 and 4S3/2,of Er3+ions were investigated in the temperature region 300-570 K to evaluate the optical temperature sensor behavior of the sample.The maximum relative sensitivity(SR)is determined to be 0.0069 K-1 at 300 K and the absolute sensitivity(SA)is determined to be 0.0126 K-1 at 300 K.The SA of self-activated KYb(MoO4)2∶Er3+is almost twice that of traditional KY(MoO4)2∶Er3+/Yb3+codoping phosphor.The re-sults demonstrate that Er3+ions doped self-activated KYb(MoO4)2 phosphor has promising application in visible display,trademark security and optical temperature sensors.

Er3+ions doped KYb(MoO4)2Self-activated phosphorsUpconversion luminescenceSolid-state reaction methodOptical temperature sensorsRare earths

Ye Tong、Wenpeng Liu、Shoujun Ding

展开 >

School of Microelectronics and Data Science,Anhui University of Technology,Maanshan,243002,China

Advanced Laser Technology Laboratory of Anhui Province,Hefei,230037,China

Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei,230031,China

National Natural Science Foundation of ChinaOpen Project of Advanced Laser Technology Laboratory of Anhui ProvinceMajor Science and Technology of Anhui ProvinceUniversity Natural Science Research Project of Anhui Province

52202001AHL2021KF07202203a05020002KJ2021A0388

2024

10.1016/j.jre.2023.07.021

稀土学报(英文版)
中国稀土学会

稀土学报(英文版)

CSTPCDEI
影响因子：1.3
ISSN：1002-0721
年,卷(期)：2024.42(8)
  • 2