首页|Highly crystalline Y3Al5O12∶Ce3+phosphor-in-silica glass ceramics for high-power solid-state lighting

Highly crystalline Y3Al5O12∶Ce3+phosphor-in-silica glass ceramics for high-power solid-state lighting

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The pursuit of high-brightness solid-state lighting(SSL)stimulates the development of all-inorganic color converters with high robustness.It is required that the fluorescent material is able to cope with the extreme condition generated from the irradiation of high-power-density excitation light.As such,in this work,we developed a new composite color converter,i.e.,Y3Al5O12∶Ce3+phosphor-in-silica glass ceramic(YAG:Ce3+PiSGC).Remarkably,the amorphous SiO2 matrix spontaneously transforms into tetragonal SiO2 crystallites during co-sintering with crystallization fraction reaching up to＞90％(almost full ceramization).The activation energy for crystallization Ec and Avrami index n of amorphous silica oxide are 298.5 kJ/mol and 1.71,indicating the diffusion-controlled glass crystallization mechanism.The fabricated prototype high-power phosphor-converted white light-emitting diode(pc-wLED)and phosphor-converted white laser diode(pc-wLD)based on YAG:Ce3+PiSGC show satisfactory photo-metric/colorimetric parameters.The developed color converters have combined merits of environmental protection property,cost-effective manufacturing,good luminescent performance,and easy scalability.This study highlights a new kind of opto-functional composite material and its application as an efficient color converter in high-power solid-state lightings.

Glass ceramicsY3Al5O12∶Ce3+Laser-driven white lightWhite light-emitting diodeRare earths

Shisheng Lin、Hang Lin、Hongyi Yang、Pengfei Wang、Ping Sui、Ju Xu、Yao Cheng、Yuansheng Wang

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Key Laboratory of Optoelectronic Materials Chemistry and Physics,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou,350002,China

Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China,Fuzhou,350108,China

Xiamen Institute of Rare-earth Materials,Haixi Institutes,Chinese Academy of Sciences,Xiamen,36100,China

College of Chemistry and Materials Science,Fujian Normal University,Fuzhou,350007,China

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National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaScience Fund for Distinguished Young Scholars of Fujian ProvinceScience Fund of Fujian ProvinceFujian Science & Technology Innovation Laboratory for Optoelectronic Information of ChinaSTS Project of Fujian-CAS

U200521351972303119743502022J060302022J050912021ZR1342022T3069

2024

10.1016/j.jre.2023.09.011

稀土学报(英文版)
中国稀土学会

稀土学报(英文版)

CSTPCDEI
影响因子：1.3
ISSN：1002-0721
年,卷(期)：2024.42(11)