{"title":"The Light Features and Bredigite Layout for Orthosilicate Phosphor in WLED Devices","authors":"M. Thi, Nguyen Le Thai, T. Bui, S. Ho","doi":"10.14716/ijtech.v14i4.5785","DOIUrl":null,"url":null,"abstract":". We created a green phosphor Ca 14-x Eu x Mg 2 [SiO 4 ] 8 or CMS:Eu 2+ to be utilized in WLED devices. The phosphor offers a wide spectrum achieving the highest value of 505 nm when excited at 400 nm, as a result of a shift between the excited state of 4 f 6 5 d and the ground state of 4 f 7 in an ion of Eu 2+ . The interactivity of dipole-dipole appeared to be a primary power shift for the electrical multipolar nature of the phosphor. We acquired a critical distance measured at 12.9 Å as well as 14.9 Å via a critical Eu 2+ concentration as well as the Dexter hypothesis on power shift. Via an encapsulant, we combined CMS:Eu 2+ as well as a phosphor in red with a LED device having a λ max value of 395 nm and managed to acquire white illumination having a CRI value measured at 91 at a 20-milliampere forward bias current. In addition, we also examined the layout as well as the light features in CMS:Eu 2+ .","PeriodicalId":50285,"journal":{"name":"International Journal of Technology Management","volume":null,"pages":null},"PeriodicalIF":1.4000,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Technology Management","FirstCategoryId":"91","ListUrlMain":"https://doi.org/10.14716/ijtech.v14i4.5785","RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
. We created a green phosphor Ca 14-x Eu x Mg 2 [SiO 4 ] 8 or CMS:Eu 2+ to be utilized in WLED devices. The phosphor offers a wide spectrum achieving the highest value of 505 nm when excited at 400 nm, as a result of a shift between the excited state of 4 f 6 5 d and the ground state of 4 f 7 in an ion of Eu 2+ . The interactivity of dipole-dipole appeared to be a primary power shift for the electrical multipolar nature of the phosphor. We acquired a critical distance measured at 12.9 Å as well as 14.9 Å via a critical Eu 2+ concentration as well as the Dexter hypothesis on power shift. Via an encapsulant, we combined CMS:Eu 2+ as well as a phosphor in red with a LED device having a λ max value of 395 nm and managed to acquire white illumination having a CRI value measured at 91 at a 20-milliampere forward bias current. In addition, we also examined the layout as well as the light features in CMS:Eu 2+ .
期刊介绍:
The IJTM aims to provide a refereed and authoritative source of information in the field of managing with technology, and the management of engineering, science and technology. It seeks to establish channels of communication between government departments, technology executives in industry, commerce and related business, and academic experts in the field.