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A bridge role of Tb3 +in broadband excited Sr3Y(PO4)3:Ce3 +, Tb3 +, Sm3 +phosphors with superior thermal stability
Leng, Zhihua1; Li, Liping1; Che, Xiangli2; Li, Guangshe1
2017
Source PublicationMaterials and Design
ISSN02641275
Volume118Pages:245-255
AbstractIn this work, we report on a comprehensive study about the bridge role of Tb3 +in broadband excited Sr3Y(PO4)3:Ce3 +, Tb3 +, Sm3 +phosphors. With Tb3 +acting as an energy transfer bridge, Ce3 + → (Tb3 +)n → Sm3 +energy transfer process was utilized to circumvent Ce3 +-Sm3 +metal-metal charge transfer (MMCT) quenching in Sr3Y(PO4)3host. Sm3 +was efficiently sensitized by the broad absorption band (4f1 → 5d1transition) of Ce3 +in near-ultraviolet spectral region. The color tones of Sr3Y(PO4)3:Ce3 +, yTb3 +, zSm3 +phosphors were tuned from blue through green and finally to orange with increasing Tb3 +/Sm3 +doping concentration. Furthermore, energy transfer mechanisms from Ce3 +to Tb3 +(dipole-dipole mechanism) and Tb3 +to Sm3 +(exchange interaction) as well as the corresponding energy transfer efficiencies (higher than 90%) are systematically investigated. Sr3Y(PO4)3:0.02Ce3 +, 0.90Tb3 +, 0.02Sm3 +phosphor shows a thermal stability up to 493 K, superior to that in analogous reports. The quantum efficiency of Sr3Y(PO4)3:0.02Ce3 +, 0.90Tb3 +, 0.02Sm3 +phosphor with 315 nm excitation was calculated to be 60%. © 2017 Elsevier Ltd
DOI10.1016/j.matdes.2017.01.038
EI Accession Number20170403274246
EI KeywordsSamarium compounds
EI Classification Number537.1 Heat Treatment Processes - 641.1 Thermodynamics - 741.1 Light/Optics - 802.2 Chemical Reactions
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/25670
Collection中国科学院上海硅酸盐研究所
Affiliation1.State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun; 130026, China;
2.State Key Lab of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics, Chinese Academy of Sciences, China
Recommended Citation
GB/T 7714
Leng, Zhihua,Li, Liping,Che, Xiangli,et al. A bridge role of Tb3 +in broadband excited Sr3Y(PO4)3:Ce3 +, Tb3 +, Sm3 +phosphors with superior thermal stability[J]. Materials and Design,2017,118:245-255.
APA Leng, Zhihua,Li, Liping,Che, Xiangli,&Li, Guangshe.(2017).A bridge role of Tb3 +in broadband excited Sr3Y(PO4)3:Ce3 +, Tb3 +, Sm3 +phosphors with superior thermal stability.Materials and Design,118,245-255.
MLA Leng, Zhihua,et al."A bridge role of Tb3 +in broadband excited Sr3Y(PO4)3:Ce3 +, Tb3 +, Sm3 +phosphors with superior thermal stability".Materials and Design 118(2017):245-255.
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