Luminescence and energy transfer in BaY 2 (MoO 4 ) 4 :Tb 3+ ,Eu 3+ phosphors and bifunctional applications in thermometry and light emitting diodes
BaY 2(MoO 4)4:Tb 3+,eu3+荧光粉的发光和能量转移及其在测温和发光二极管中的双功能应用
作者: Jing WangMingjun SongHyo Jin Seo
作者单位: 1Department of Physics and Interdisciplinary Program of Biomedical Engineering, Mechanical and Electrical Engineering, Pukyong National University, Busan, 48513, Republic of Korea
2School of Chemistry and Chemical Engineering, Weifang University, Weifang, Shandong, 261061, China
刊名: Journal of Luminescence, 2020, Vol.222
来源数据库: Elsevier Journal
DOI: 10.1016/j.jlumin.2020.117185
关键词: Eu 3+ /Tb 3+ energy transferTemperature sensingWhite LED
英文摘要: Abstract(#br)A series of BaY 2 (MoO 4 ) 4 :Eu 3+ ,Tb 3+ phosphors were synthesized by solid state reaction. The phase purity, crystal structure and photoluminescence properties were identified by X-ray diffraction, SEM, DRS, excitation and emission spectra, and luminescence decay curves. The emission color can be tuned from green to yellow and then to red by changing the concentration ratio of Eu 3+ and Tb 3+ under near-UV excitation. The energy transfer processes between Eu 3+ and Tb 3+ ions were investigated on the basis of emission spectra under different excitation wavelength. BaY 2 (MoO 4 ) 4 :Tb 3+ ,Eu 3+ phosphors exhibited high temperature sensing performance in the temperature range of 89–293 K with maximum absolute sensitivity of 6.02% K −1 and relative sensitivity of 1.06% K −1...
全文获取路径: Elsevier  (合作)
影响因子:2.144 (2012)

  • emitting 发出
  • light 
  • thermometry 温度测量
  • bifunctional 双功能的
  • energy 能量
  • transfer 转换
  • applications 应用程序