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Photoluminescence properties, excellent thermal stability and energy transfer in Ce3+ and Tb3+ co-doped Sr3Gd2(BO3)(4) phosphors
X. X. Fan; X. Y. Sun; C. M. Liu; W. L. Tian; M. Li; Y. S. Luo and C. L. Wu
2022
Source PublicationJournal of Luminescence
ISSN0022-2313
Volume242Pages:9
AbstractSr3Gd2(BO3)(4): Ce3+, Sr3Gd2(BO3)(4): Tb3+ and Sr3Gd2(BO3)(4): Ce3+, Tb3+ phosphors were synthesized through conventional high temperature solid state reaction method. Phase purity, crystal structure, photoluminescence properties, and lifetime of the samples were analyzed in detailed. Sr3Gd2(BO3)(4): Ce3+ showed a bright blue broad emission band, which was attributed to 4f -> 5d transitions of the Ce3+ ions, and it exhibited two broad excitation ranged from 200 nm to 400 nm. For all Sr3Gd2(BO3)(4) : Tb3+ samples, under ultraviolet excitation bands of 240 nm, four emissions peaked at 490 nm, 544 nm, 585 nm and 623 nm appeared, due to the D-5(4) -> F-7(J) (J = 6, 5, 4, 3) transitions of Tb3+ ions. For the Sr3Gd2(BO3)(4): Ce3+, Tb3+ phosphors, the lifetime of the samples were analyzed, which showed the presence of energy transfer between the Ce3+ and Tb3+. The energy transfer efficiency from Ce3+ ions to Tb3+ ions reached 98.37%. When the temperature reached 443 K, the luminescence intensity reached 88% of the initial value. Finally, a white LED was fabricated by using a 365 nm near ultraviolet LED chip combined with BaMgAl10O17: Eu2+ (blue), Sr3Gd0.91(BO3)(4): 0.09Ce(3+), 1.0 Tb3+ (green), and CaAlSiN3: Eu2+ (red) phosphors. The color coordinates was (0.40, 0.42); correlated color temperature was 3721 K; color rendering index was 91.1. The results showed that the Sr3Gd2(BO3)(4) : Ce3+, Tb3+ green phosphors were suitable for white LEDs.
DOI10.1016/j.jlumin.2021.118594
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Document Type期刊论文
Identifierhttp://ir.ciomp.ac.cn/handle/181722/65532
Collection中国科学院长春光学精密机械与物理研究所
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GB/T 7714
X. X. Fan,X. Y. Sun,C. M. Liu,et al. Photoluminescence properties, excellent thermal stability and energy transfer in Ce3+ and Tb3+ co-doped Sr3Gd2(BO3)(4) phosphors[J]. Journal of Luminescence,2022,242:9.
APA X. X. Fan,X. Y. Sun,C. M. Liu,W. L. Tian,M. Li,&Y. S. Luo and C. L. Wu.(2022).Photoluminescence properties, excellent thermal stability and energy transfer in Ce3+ and Tb3+ co-doped Sr3Gd2(BO3)(4) phosphors.Journal of Luminescence,242,9.
MLA X. X. Fan,et al."Photoluminescence properties, excellent thermal stability and energy transfer in Ce3+ and Tb3+ co-doped Sr3Gd2(BO3)(4) phosphors".Journal of Luminescence 242(2022):9.
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