YAG:Ce-glass/porous stainless steel composite materials for laser illumination

IF 3.3 3区物理与天体物理 Q2 OPTICS Journal of Luminescence Pub Date : 2025-03-14 DOI:10.1016/j.jlumin.2025.121193

Xu Changyi , Ding Haifeng , Fan Guohua , Zhou Tianliang , Zhou Wenbin

{"title":"YAG:Ce-glass/porous stainless steel composite materials for laser illumination","authors":"Xu Changyi , Ding Haifeng , Fan Guohua , Zhou Tianliang , Zhou Wenbin","doi":"10.1016/j.jlumin.2025.121193","DOIUrl":null,"url":null,"abstract":"<div><div>Al<sub>2</sub>O<sub>3</sub>-based YAG:Ce PiG composite films have gained significant attention as optimal color converters for laser illumination due to their straightforward fabrication process and exceptional stability. However, the inherent limitations in the thermal conductivity of Al<sub>2</sub>O<sub>3</sub> result in a low pump utilization rate, making it challenging to achieve efficient white light output from PiG films. In this study, we introduce a novel laser illumination component composed of porous stainless steel (PSS) integrated with YAG:Ce/glass (PGiPSS), which has been sintered at 750 °C. The PSS demonstrates adequate thermal conductivity and the capacity to host a substantial number of luminescent particles within its pores, leading to enhanced quantum efficiency and reduced thermal quenching effects. Notably, when subjected to a 450 nm laser diode with a peak excitation power density of 24.10 W/mm<sup>2</sup>, the developed PGiPSS generated white light with a correlated color temperature (CCT) of 6693 K and an impressive luminous efficiency of 135.2 lm/W. These findings indicate that PGiPSS is a viable candidate for applications requiring high-power and high-brightness laser illumination.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"281 ","pages":"Article 121193"},"PeriodicalIF":3.3000,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Luminescence","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022231325001334","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}

引用次数: 0

Abstract

Al₂O₃-based YAG:Ce PiG composite films have gained significant attention as optimal color converters for laser illumination due to their straightforward fabrication process and exceptional stability. However, the inherent limitations in the thermal conductivity of Al₂O₃ result in a low pump utilization rate, making it challenging to achieve efficient white light output from PiG films. In this study, we introduce a novel laser illumination component composed of porous stainless steel (PSS) integrated with YAG:Ce/glass (PGiPSS), which has been sintered at 750 °C. The PSS demonstrates adequate thermal conductivity and the capacity to host a substantial number of luminescent particles within its pores, leading to enhanced quantum efficiency and reduced thermal quenching effects. Notably, when subjected to a 450 nm laser diode with a peak excitation power density of 24.10 W/mm², the developed PGiPSS generated white light with a correlated color temperature (CCT) of 6693 K and an impressive luminous efficiency of 135.2 lm/W. These findings indicate that PGiPSS is a viable candidate for applications requiring high-power and high-brightness laser illumination.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

求助全文

约1分钟内获得全文去求助

来源期刊

Journal of Luminescence 物理-光学

CiteScore

6.70

自引率

13.90%

发文量

850

审稿时长

3.8 months

期刊介绍： The purpose of the Journal of Luminescence is to provide a means of communication between scientists in different disciplines who share a common interest in the electronic excited states of molecular, ionic and covalent systems, whether crystalline, amorphous, or liquid. We invite original papers and reviews on such subjects as: exciton and polariton dynamics, dynamics of localized excited states, energy and charge transport in ordered and disordered systems, radiative and non-radiative recombination, relaxation processes, vibronic interactions in electronic excited states, photochemistry in condensed systems, excited state resonance, double resonance, spin dynamics, selective excitation spectroscopy, hole burning, coherent processes in excited states, (e.g. coherent optical transients, photon echoes, transient gratings), multiphoton processes, optical bistability, photochromism, and new techniques for the study of excited states. This list is not intended to be exhaustive. Papers in the traditional areas of optical spectroscopy (absorption, MCD, luminescence, Raman scattering) are welcome. Papers on applications (phosphors, scintillators, electro- and cathodo-luminescence, radiography, bioimaging, solar energy, energy conversion, etc.) are also welcome if they present results of scientific, rather than only technological interest. However, papers containing purely theoretical results, not related to phenomena in the excited states, as well as papers using luminescence spectroscopy to perform routine analytical chemistry or biochemistry procedures, are outside the scope of the journal. Some exceptions will be possible at the discretion of the editors.