Optical and thermal properties of phosphors based on lead-silicate glass for high-power white LEDs

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• 作者：M. A. Shvaleva ; Yu. V. Tuzova ; A. E. Romanov ; V. A. Aseev…
• 刊名：Technical Physics Letters
• 出版年：2015
• 出版时间：November 2015
• 年：2015
• 卷：41
• 期：11
• 页码：1041-1043
• 全文大小：287 KB
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• 作者单位：M. A. Shvaleva (1) (2)
  Yu. V. Tuzova (1) (2)
  A. E. Romanov (1) (2)
  V. A. Aseev (1) (2)
  N. V. Nikonorov (1) (2)
  K. D. Mynbaev (1) (2)
  V. E. Bugrov (1) (2)
  
  1. University of Information Technologies, Mechanics, and Optics, St. Petersburg, 197101, Russia
  2. Ioffe Physical Technical Institute, Russian Academy of Sciences, St. Petersburg, 194021, Russia
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Mechanics, Fluids and Thermodynamics
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1090-6533

文摘

A study is reported of the properties of a new phosphor material based on a highly refractive leadsilicate glass and microparticles of yttrium-aluminum garnet doped with cerium ions (YAG: Ce3+). The mass percentage fraction of YAG: Ce3+ microparticles in the material was varied from 50 to 90%. The optical properties of the phosphor were examined, as well as its thermal properties when used as a primary optical material in high-power light-emitting diode (LED) units. The results obtained reveal problems of excess heat removal from an LED structure, which appear on passing from phosphor binders based on silicone elastomers to glasses, and demonstrate that the phosphor developed in the study is promising for obtaining warm white light. Original Russian Text ? M.A. Shvaleva, Yu.V. Tuzova, A.E. Romanov, V.A. Aseev, N.V. Nikonorov, K.D. Mynbaev, V.E. Bugrov, 2015, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2015, Vol. 41, No. 21, pp. 38-4.