{"title":"TiO2, SiO2, CaF2, and CaCO3: the Influence of Particles’ Concentration on Luminous Efficiency of the Conformal Geometry MCW-LEDs","authors":"Lê Đình Anh Vũ, Hoang Minh Tran, T. T. Nam","doi":"10.5875/AUSMT.V7I4.1326","DOIUrl":null,"url":null,"abstract":"In this research, the influence of scattering enhancement particle TiO 2, SiO 2 , CaF 2 , and CaCO3 concentration, which adds to the YAG:Ce phosphor compounding, on the luminous efficiency of multichip white LEDs (MCW-LEDs) was proposed and analyzed. Firstly, the physical model of MCW-LEDs is simulated and demonstrated by using commercial LightTools 8.4 program. After that, the effect of scattering enhancement particles on the luminous efficiency is calculated and analyzed. Then, the luminous output of the 8500K W-LEDs are demonstrated convincingly by the Monte Carlo simulation and the Mie-scattering theory. The simulation results indicated that the highest luminous output could be accomplished with CaCO 3 particles. The results and discussion provided a prospective approach for higher-quality manufacturing W-LEDs in the near future.","PeriodicalId":38109,"journal":{"name":"International Journal of Automation and Smart Technology","volume":"7 1","pages":"187-191"},"PeriodicalIF":0.0000,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Automation and Smart Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5875/AUSMT.V7I4.1326","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Computer Science","Score":null,"Total":0}
引用次数: 0
Abstract
In this research, the influence of scattering enhancement particle TiO 2, SiO 2 , CaF 2 , and CaCO3 concentration, which adds to the YAG:Ce phosphor compounding, on the luminous efficiency of multichip white LEDs (MCW-LEDs) was proposed and analyzed. Firstly, the physical model of MCW-LEDs is simulated and demonstrated by using commercial LightTools 8.4 program. After that, the effect of scattering enhancement particles on the luminous efficiency is calculated and analyzed. Then, the luminous output of the 8500K W-LEDs are demonstrated convincingly by the Monte Carlo simulation and the Mie-scattering theory. The simulation results indicated that the highest luminous output could be accomplished with CaCO 3 particles. The results and discussion provided a prospective approach for higher-quality manufacturing W-LEDs in the near future.
期刊介绍：
International Journal of Automation and Smart Technology (AUSMT) is a peer-reviewed, open-access journal devoted to publishing research papers in the fields of automation and smart technology. Currently, the journal is abstracted in Scopus, INSPEC and DOAJ (Directory of Open Access Journals). The research areas of the journal include but are not limited to the fields of mechatronics, automation, ambient Intelligence, sensor networks, human-computer interfaces, and robotics. These technologies should be developed with the major purpose to increase the quality of life as well as to work towards environmental, economic and social sustainability for future generations. AUSMT endeavors to provide a worldwide forum for the dynamic exchange of ideas and findings from research of different disciplines from around the world. Also, AUSMT actively seeks to encourage interaction and cooperation between academia and industry along the fields of automation and smart technology. For the aforementioned purposes, AUSMT maps out 5 areas of interests. Each of them represents a pillar for better future life: - Intelligent Automation Technology. - Ambient Intelligence, Context Awareness, and Sensor Networks. - Human-Computer Interface. - Optomechatronic Modules and Systems. - Robotics, Intelligent Devices and Systems.
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