Tunable luminescence and energy transfer for Ce3+/Tb3+/Sm3+ doped SrAl2Si2O8 phosphors. Issue 8 (1st June 2018)

• Record Type: Journal Article
• Authors: Wu, Yeqiu; Zhu, Li; Mao, Huaqing
• Is Part Of: Ceramics international. Volume 44:Issue 8(2018)
• Page Start: 10015
• Page End: 10019
• Publication Date: 2018-06-01
• Subjects: SrAl2Si2O8 -- Ce3+/Tb3+/Sm3+ doping -- Energy transfer -- Tunable luminescence; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2018.03.030
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: A series of Ce 3+ /Tb 3+ /Sm 3+ doped SrAl2 Si2 O8 phosphors were synthesized by a solid state reaction. The phase and luminescence of the synthesized phosphors were investigated. The XRD patterns of the synthesized phosphors indicate that the doped rare earth ions do not change the phase structure of SrAl2 Si2 O8 host. For Ce 3+, Tb 3+ and Sm 3+ singly doped SrAl2 Si2 O8 phosphors, emission bands locating at blue, green and red regions were observed, which are characteristic emission bands of Ce 3+, Tb 3+ and Sm 3+ . For Ce 3+ /Tb 3+ and Ce 3+ /Sm 3+ codoped SrAl2 Si2 O8 phosphors, energy transfer occurred between Ce 3+ /Tb 3+ ion pairs but it was forbidden between Ce 3+ /Sm 3+ ion pairs. And for Ce 3+ /Tb 3+ /Sm 3+ triply doped SrAl2 Si2 O8 phosphors, energy transfer from Ce 3+ to Sm 3+ through Tb 3+ chain was accomplished.