Structural evolution-facilitated luminescence of Sm^(3+)in whitlockite-type phosphors with anti-thermal quenching behaviorOA
Sm^(3+)luminescence has pivotal significance in the field of optoelectronics.However,their poor luminescence efficiency severely hinders their practical application as Sm^(3+)-activated optical materials.Herein,two whitlockite-type phosphors,Sr9Ln(PO4)7:Sm^(3+)(Ln=La and Y,marked as SLPO and SYPO),with anti-thermal quenching(ATQ)were reported.The substitution of La^(3+)with Y^(3+)results in structural evolution from the space group R m of SLPO:Sm^(3+)to I2/a of SYPO:Sm^(3+),increasing the distance between Sm^(3+)dopants and suppressing nonradiative(NR)relaxation.The luminescence efficiency is significantly enhanced by 2.3 times.The representative SYPO:0.05Sm^(3+)phosphor demonstrates superior temperature sensing performance,achieving a relative sensitivity of 1.78%·K^(−1),which exceeds the values reported for recently investigated Sm^(3+)-activated phosphors.Moreover,the material is packaged in a 395 nm chipexcited white lighting source,resulting in a low correlated color temperature(CCT=3394 K)with a high color rendering index(R_(a)=97).This study provides a facile structural evolution strategy for designing highly efficient Sm^(3+)-activated optical materials that facilitate wider applications.
Junpeng Li;Zhouyan Li;Jintao Xie;Yujia Xu;Yuting Li;Mincheng Jiang;Asif Ali Haider;Wei Qian;Jing Zhu;Bo Wang;Xiaoshuang Li;Youchao Kong;Jun Zhang
Yunnan Key Laboratory of Electromagnetic Materials and Devices,Yunnan International Joint Laboratory for Carbon Emission Statistics Accounting and AIdriven Forecasting&Warning,School of Materials and Energy,Yunnan University,Kunming 650091,ChinaYunnan Key Laboratory of Electromagnetic Materials and Devices,Yunnan International Joint Laboratory for Carbon Emission Statistics Accounting and AIdriven Forecasting&Warning,School of Materials and Energy,Yunnan University,Kunming 650091,ChinaYunnan Key Laboratory of Electromagnetic Materials and Devices,Yunnan International Joint Laboratory for Carbon Emission Statistics Accounting and AIdriven Forecasting&Warning,School of Materials and Energy,Yunnan University,Kunming 650091,ChinaYunnan Key Laboratory of Electromagnetic Materials and Devices,Yunnan International Joint Laboratory for Carbon Emission Statistics Accounting and AIdriven Forecasting&Warning,School of Materials and Energy,Yunnan University,Kunming 650091,ChinaYunnan Key Laboratory of Electromagnetic Materials and Devices,Yunnan International Joint Laboratory for Carbon Emission Statistics Accounting and AIdriven Forecasting&Warning,School of Materials and Energy,Yunnan University,Kunming 650091,ChinaYunnan Key Laboratory of Electromagnetic Materials and Devices,Yunnan International Joint Laboratory for Carbon Emission Statistics Accounting and AIdriven Forecasting&Warning,School of Materials and Energy,Yunnan University,Kunming 650091,ChinaYunnan Key Laboratory of Electromagnetic Materials and Devices,Yunnan International Joint Laboratory for Carbon Emission Statistics Accounting and AIdriven Forecasting&Warning,School of Materials and Energy,Yunnan University,Kunming 650091,ChinaYunnan Key Laboratory of Electromagnetic Materials and Devices,Yunnan International Joint Laboratory for Carbon Emission Statistics Accounting and AIdriven Forecasting&Warning,School of Materials and Energy,Yunnan University,Kunming 650091,ChinaYunnan Key Laboratory of Electromagnetic Materials and Devices,Yunnan International Joint Laboratory for Carbon Emission Statistics Accounting and AIdriven Forecasting&Warning,School of Materials and Energy,Yunnan University,Kunming 650091,China State Key Laboratory of Precious Metal Functional Materials,Sino-Platinum Electronic Materials(Yunnan)Co.,Ltd.,Kunming 650503,ChinaSchool of Applied Physics and Materials,Wuyi University,Jiangmen 529020,ChinaSchool of Applied Physics and Materials,Wuyi University,Jiangmen 529020,ChinaDepartment of Physics and Electronic Engineering,Yancheng Teachers University,Yancheng 224002,ChinaYunnan Key Laboratory of Electromagnetic Materials and Devices,Yunnan International Joint Laboratory for Carbon Emission Statistics Accounting and AIdriven Forecasting&Warning,School of Materials and Energy,Yunnan University,Kunming 650091,China
化学化工
Sm^(3+)whitlockite structureanti-thermal quenching(ATQ)structural evolutionluminescence efficiency
《Journal of Advanced Ceramics》 2026 (1)
P.131-141,11
supported by the Science and Technology Projects of Yunnan Universities Serving Key Industries(No.FWCY-BSPY2025007)Yunnan Fundamental Research Project(No.202401AS070128)the Key Research and Development Program of Yunnan Province(No.202503AP140018)the Open Project of State Key Laboratory of Precious Metal Functional Materials(No.2025DZ0801)the Scientific Research and Innovation Project of Postgraduate Students in the Academic Degree of Yunnan University(No.KC-242410194)the Yancheng Municipal Policy-guided Plan(No.YCGH007).
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