Photothermal synergistic AlN-YAG:Ce composite phosphor ceramics for laser-driven lighting applicationsOA
As laser lighting advances toward kilowatt-level power,the thermal stability of phosphors has become a critical bottleneck limiting performance enhancement.To address the issue of luminescence degradation of YAG:Ce phosphors caused by a temperature rise under laser irradiation,we introduced highly thermally conductive AlN into the YAG:Ce matrix and successfully prepared AlN-YAG:Ce composite phosphor ceramics by powderembedding nitrogen atmosphere sintering.The incorporation of AlN enhances lumen efficiency through increased scattering effects while improving thermal robustness via its inherent high thermal conductivity.The ceramic sample containing 50 vol%AlN exhibits a luminescence intensity comparable to that of YAG:Ce,yet its thermal conductivity is approximately three times higher,reaching 27.2 W·m^(-1)·K^(-1).A high lumen efficiency of 200.1 lm·W^(-1)and a suitable correlated color temperature of 4608 K are achieved by the ceramics with 10 vol%AlN under 1.3 W·mm^(-2)blue laser diode excitation.Moreover,a laser illumination prototype device incorporating ceramic samples containing 10 vol%AlN and a 10 W blue laser was constructed,emitting white light with an illumination range exceeding 500 m,demonstrating potential applications in laser-driven lighting.
Ziqiu Cheng;Zhenzhen Zhou;Yanbin Wang;Sifan Zhuo;Shisheng Lin;Chen Hu;Denis YuKosyanov;Daqin Chen;Jiang Li
State Key Laboratory of High Performance Ceramics,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 201899,China Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,ChinaState Key Laboratory of High Performance Ceramics,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 201899,China Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,ChinaState Key Laboratory of High Performance Ceramics,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 201899,China Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,ChinaCollege of Physics and Energy,Fujian Normal University,Fuzhou 350117,China Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering,Fujian Normal University,Fuzhou 350117,ChinaCollege of Physics and Energy,Fujian Normal University,Fuzhou 350117,China Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering,Fujian Normal University,Fuzhou 350117,ChinaState Key Laboratory of High Performance Ceramics,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 201899,China Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,ChinaFar Eastern Federal University,Vladivostok 690922,Russia Institute of Automation and Control Processes,Far Eastern Branch of the Russian Academy of Sciences,Vladivostok 690041,RussiaCollege of Physics and Energy,Fujian Normal University,Fuzhou 350117,China Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering,Fujian Normal University,Fuzhou 350117,ChinaState Key Laboratory of High Performance Ceramics,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 201899,China Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China
化学化工
AlN-YAG:Celaser-driven lightinglumen efficiencythermal conductivity
《Journal of Advanced Ceramics》 2026 (5)
P.153-161,9
supported by the National Key R&D Program of China(No.2023YFB3506600)the International Cooperation and Exchange Project of the National Natural Science Foundation of China(No.W2512070)the Shanghai Partner Research Program(No.25HB2706600)the Special Exchange Program of Chinese Academy of Sciences(No.121631GJHZ2024017TBJH)Grateful acknowledgment is made for support from the Russian Science Foundation(No.25-73-10179).
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