{"title":"通过激光加热基座生长技术制造用于大功率激光驱动照明的 LuAG:Ce-Al2O3 共晶体","authors":"Wen Hao, Xiao-Jun Wang, Jun Guo, Jian Liu, Shuxing Li, Xiaodong Xu","doi":"10.1111/jace.20076","DOIUrl":null,"url":null,"abstract":"<p>Thermally robust and highly stable bulk luminescent materials are essential for advancing high-power laser-driven lighting. In this study, we report a yellow–green LuAG:Ce–Al<sub>2</sub>O<sub>3</sub> eutectic, synthesized using the laser-heated pedestal growth (LHPG) technique. The emission intensity of the eutectics reaches a maximum at an Al<sub>2</sub>O<sub>3</sub> content of 20% due to the enhanced light scattering. Additionally, owing to the high thermal conductivity of Al<sub>2</sub>O<sub>3</sub>, the prepared LuAG:Ce–Al<sub>2</sub>O<sub>3</sub> eutectic exhibits low thermal quenching, with only a 5% loss in luminescence observed at 150°C, along with a high luminance saturation threshold of approximately 15.8 W·mm<sup>−2</sup>. When irradiated under blue laser excitation at 7.9 W, the prepared LuAG:Ce–Al<sub>2</sub>O<sub>3</sub> eutectic demonstrates a luminous flux of 1917 lm and a luminous efficacy of 242.4 lm·W<sup>−1</sup>. These results highlight that the potential of LuAG:Ce–Al<sub>2</sub>O<sub>3</sub> eutectics as luminescent materials for high-power laser-driven lighting applications.</p>","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"107 12","pages":"8291-8298"},"PeriodicalIF":3.5000,"publicationDate":"2024-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Fabrication of LuAG:Ce–Al2O3 eutectics via laser-heated pedestal growth technique for high-power laser-driven lighting\",\"authors\":\"Wen Hao, Xiao-Jun Wang, Jun Guo, Jian Liu, Shuxing Li, Xiaodong Xu\",\"doi\":\"10.1111/jace.20076\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Thermally robust and highly stable bulk luminescent materials are essential for advancing high-power laser-driven lighting. In this study, we report a yellow–green LuAG:Ce–Al<sub>2</sub>O<sub>3</sub> eutectic, synthesized using the laser-heated pedestal growth (LHPG) technique. The emission intensity of the eutectics reaches a maximum at an Al<sub>2</sub>O<sub>3</sub> content of 20% due to the enhanced light scattering. Additionally, owing to the high thermal conductivity of Al<sub>2</sub>O<sub>3</sub>, the prepared LuAG:Ce–Al<sub>2</sub>O<sub>3</sub> eutectic exhibits low thermal quenching, with only a 5% loss in luminescence observed at 150°C, along with a high luminance saturation threshold of approximately 15.8 W·mm<sup>−2</sup>. When irradiated under blue laser excitation at 7.9 W, the prepared LuAG:Ce–Al<sub>2</sub>O<sub>3</sub> eutectic demonstrates a luminous flux of 1917 lm and a luminous efficacy of 242.4 lm·W<sup>−1</sup>. These results highlight that the potential of LuAG:Ce–Al<sub>2</sub>O<sub>3</sub> eutectics as luminescent materials for high-power laser-driven lighting applications.</p>\",\"PeriodicalId\":200,\"journal\":{\"name\":\"Journal of the American Ceramic Society\",\"volume\":\"107 12\",\"pages\":\"8291-8298\"},\"PeriodicalIF\":3.5000,\"publicationDate\":\"2024-08-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of the American Ceramic Society\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1111/jace.20076\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, CERAMICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the American Ceramic Society","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/jace.20076","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
Fabrication of LuAG:Ce–Al2O3 eutectics via laser-heated pedestal growth technique for high-power laser-driven lighting
Thermally robust and highly stable bulk luminescent materials are essential for advancing high-power laser-driven lighting. In this study, we report a yellow–green LuAG:Ce–Al2O3 eutectic, synthesized using the laser-heated pedestal growth (LHPG) technique. The emission intensity of the eutectics reaches a maximum at an Al2O3 content of 20% due to the enhanced light scattering. Additionally, owing to the high thermal conductivity of Al2O3, the prepared LuAG:Ce–Al2O3 eutectic exhibits low thermal quenching, with only a 5% loss in luminescence observed at 150°C, along with a high luminance saturation threshold of approximately 15.8 W·mm−2. When irradiated under blue laser excitation at 7.9 W, the prepared LuAG:Ce–Al2O3 eutectic demonstrates a luminous flux of 1917 lm and a luminous efficacy of 242.4 lm·W−1. These results highlight that the potential of LuAG:Ce–Al2O3 eutectics as luminescent materials for high-power laser-driven lighting applications.
期刊介绍：
The Journal of the American Ceramic Society contains records of original research that provide insight into or describe the science of ceramic and glass materials and composites based on ceramics and glasses. These papers include reports on discovery, characterization, and analysis of new inorganic, non-metallic materials; synthesis methods; phase relationships; processing approaches; microstructure-property relationships; and functionalities. Of great interest are works that support understanding founded on fundamental principles using experimental, theoretical, or computational methods or combinations of those approaches. All the published papers must be of enduring value and relevant to the science of ceramics and glasses or composites based on those materials.
Papers on fundamental ceramic and glass science are welcome including those in the following areas:
Enabling materials for grand challenges[...]
Materials design, selection, synthesis and processing methods[...]
Characterization of compositions, structures, defects, and properties along with new methods [...]
Mechanisms, Theory, Modeling, and Simulation[...]
JACerS accepts submissions of full-length Articles reporting original research, in-depth Feature Articles, Reviews of the state-of-the-art with compelling analysis, and Rapid Communications which are short papers with sufficient novelty or impact to justify swift publication.
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