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Article

Multiple Energy Transfer in Luminescence-Tunable Single-Phased Phosphor NaGdTiO4: Tm3+, Dy3+, Sm3+

Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China
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Nanomaterials 2020, 10(7), 1249; https://doi.org/10.3390/nano10071249
Received: 28 May 2020 / Revised: 23 June 2020 / Accepted: 23 June 2020 / Published: 27 June 2020
Advances in solid-state white-light-emitting diodes (WLEDs) necessitate the urgent development of highly efficient single-phase phosphors with tunable photoluminescence properties. Herein, the Tm3+, Dy3+, and Sm3+ ions are incorporated into the orthorhombic NaGdTiO4 (NGT) phosphors, resulting in phosphors that fulfill the aforementioned requirement. The emission spectrum of Tm3+ ions overlaps well with the adsorption spectra of both Dy3+ and Sm3+ ions. Under the excitation at 358 nm, the single-phase NaGdTiO4: Tm3+, Dy3+, Sm3+ phosphor exhibits tunable emission peaks in the blue, yellow, and red regions simultaneously, resulting in an intense white-light emission. The coexisting energy transfer behaviors from Tm3+ to Dy3+ and Sm3+ ions and the energy transfer from Dy3+ to Sm3+ ions are demonstrated to be responsible for this phenomenon. The phosphors with multiple energy transfers enable the development of single-phase white-light-emitting phosphors for phosphor-converted WLEDs. View Full-Text
Keywords: phosphor; NaGdTiO4; energy transfer; luminescence; WLEDs phosphor; NaGdTiO4; energy transfer; luminescence; WLEDs
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MDPI and ACS Style

Xiao, J.; Wang, C.; Min, X.; Wu, X.; Liu, Y.; Huang, Z.; Fang, M. Multiple Energy Transfer in Luminescence-Tunable Single-Phased Phosphor NaGdTiO4: Tm3+, Dy3+, Sm3+. Nanomaterials 2020, 10, 1249. https://doi.org/10.3390/nano10071249

AMA Style

Xiao J, Wang C, Min X, Wu X, Liu Y, Huang Z, Fang M. Multiple Energy Transfer in Luminescence-Tunable Single-Phased Phosphor NaGdTiO4: Tm3+, Dy3+, Sm3+. Nanomaterials. 2020; 10(7):1249. https://doi.org/10.3390/nano10071249

Chicago/Turabian Style

Xiao, Jun, Cong Wang, Xin Min, Xiaowen Wu, Yangai Liu, Zhaohui Huang, and Minghao Fang. 2020. "Multiple Energy Transfer in Luminescence-Tunable Single-Phased Phosphor NaGdTiO4: Tm3+, Dy3+, Sm3+" Nanomaterials 10, no. 7: 1249. https://doi.org/10.3390/nano10071249

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