Jin Zhao, Yongchun Zhang, Jingwen Lu, Yiming Li, Yong Pan
{"title":"Synthesis and Spectroscopic Properties of Sm3+-Activated Li6Y(BO3)3 Phosphor for Light-Emitting Diode Applications","authors":"Jin Zhao, Yongchun Zhang, Jingwen Lu, Yiming Li, Yong Pan","doi":"10.3390/coatings14091142","DOIUrl":null,"url":null,"abstract":"A series of orange-red emitting Li6Y(BO3)3: Sm3+ (LYBO: Sm3+) phosphors were produced via the high temperature solid-state method. The structure, morphology, element distribution and photoluminescent behavior of these phosphors were thoroughly examined. XRD analysis confirmed that all samples exhibited a pure phase. Under 404 nm excitation, the emission spectra included four distinct transitions of Sm3+, attributed to 4G5/2→6H5/2 (565 nm), 4G5/2→6H7/2 (613 nm), 4G5/2→6H9/2 (647 nm) and 4G5/2→6H11/2 (708 nm). The ideal doping level for LYBO: xSm3+ is x = 0.05, and the concentration quenching primarily stems from electric dipole–dipole interactions among the ions. As the amount of Sm3+ dopant was increased, the fluorescence lifetime decreased. The CIE indicates that LYBO: 0.05Sm3+ is located in the orange-red region, exhibiting a high color purity (99%) and low color temperature (1711 K). The phosphor demonstrated excellent thermal stability and its activation energy was 0.3238 eV. In summary, LYBO: Sm3+ is a potential orange-red phosphor that can be coated onto near-ultraviolet chips suitable for W-LEDs.","PeriodicalId":10520,"journal":{"name":"Coatings","volume":null,"pages":null},"PeriodicalIF":2.9000,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Coatings","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.3390/coatings14091142","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, COATINGS & FILMS","Score":null,"Total":0}
引用次数: 0
Abstract
A series of orange-red emitting Li6Y(BO3)3: Sm3+ (LYBO: Sm3+) phosphors were produced via the high temperature solid-state method. The structure, morphology, element distribution and photoluminescent behavior of these phosphors were thoroughly examined. XRD analysis confirmed that all samples exhibited a pure phase. Under 404 nm excitation, the emission spectra included four distinct transitions of Sm3+, attributed to 4G5/2→6H5/2 (565 nm), 4G5/2→6H7/2 (613 nm), 4G5/2→6H9/2 (647 nm) and 4G5/2→6H11/2 (708 nm). The ideal doping level for LYBO: xSm3+ is x = 0.05, and the concentration quenching primarily stems from electric dipole–dipole interactions among the ions. As the amount of Sm3+ dopant was increased, the fluorescence lifetime decreased. The CIE indicates that LYBO: 0.05Sm3+ is located in the orange-red region, exhibiting a high color purity (99%) and low color temperature (1711 K). The phosphor demonstrated excellent thermal stability and its activation energy was 0.3238 eV. In summary, LYBO: Sm3+ is a potential orange-red phosphor that can be coated onto near-ultraviolet chips suitable for W-LEDs.
CoatingsMaterials Science-Surfaces, Coatings and Films
CiteScore
5.00
自引率
11.80%
发文量
1657
审稿时长
1.4 months
期刊介绍:
Coatings is an international, peer-reviewed open access journal of coatings and surface engineering. It publishes reviews, research articles, communications and technical notes. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. Full experimental and/or methodical details must be provided. There are, in addition, unique features of this journal:
* manuscripts regarding research proposals and research ideas will be particularly welcomed
* electronic files or software regarding the full details of the calculation and experimental procedure - if unable to be published in a normal way - can be deposited as supplementary material