期刊
CERAMICS INTERNATIONAL
卷 48, 期 13, 页码 18157-18164出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2022.03.074
关键词
SrZnSO; Bi3+/Tb3+/Mn2+ doping; Tunable luminescence; Energy transfer
资金
- Key Scientific Research Project of Colleges and Universities in Henan Province of China [20A140032]
- Crucial Science and Technology Project of Zhoukou City [2021GG01002]
- College Student's Creation and Innovation Project of Henan Province of China [S202110478049]
- Project of New Engineering Research and Practice of Henan Province [2020JGLX068]
- Research Project of Teaching Reform for the Education Department of Henan Province [2020-JSJYZD-011]
- Research Project of Teaching Reform for Zhoukou Normal University [J2021031, SZJG-2021011]
The luminescent characteristics of Bi3+/Tb3+/Mn2+-activated SrZnSO phosphors were investigated. The phosphors showed blue, orange, and green emissions when excited by NUV/blue light. Energy transfer processes among the activators result in tunable luminescence. The emission points of the phosphors were calculated, reflecting changes in emission color.
Bi3+/Tb3+/Mn2+-activated SrZnSO phosphors were prepared to investigate their luminescence characteristics. The SrZnSO:Bi3+, SrZnSO:Mn2+ and SrZnSO:Tb3+ phosphors, excited by the NUV/blue light, show blue, orange and green emissions, respectively. The Bi3+ -> Tb3+, Tb3+ -> Mn2+ and Bi3+ -> Mn2+ energy transfer processes take place in Bi3+/Tb3+-, Tb3+/Mn2+-, Bi3+/Mn2+- and Bi3+/Tb3+/Mn2+-activated SrZnSO phosphors, which result in tunable luminescence of these phosphors. The CIE coordinates were calculated on the basis of the emission spectra, and they reflect the emission color changes of phosphors. For the Bi3+/Tb3+-, Tb3+/Mn2+- and Bi3+/Mn2+- activated SrZnSO phosphors, the emission points are located in the cyan, yellow and white light regions, respectively. For the Bi3+/Tb3+/Mn2+-activated SrZnSO phosphors, the light is in warm white light region.
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