Synthesizing phosphors through microwave process

Chris Y. Fang, Dinesh K. Agrawal, Ming Fu, Joan M. Covcleskie, Chung Nin Chau, James Walck, Robert T. McSweeney, Rustum Roy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Various Lamp phosphors, including [Ca10(PO4) 6(Cl,F):Sb:Mn], (Y,Eu)2O3 (YOE), BaMgAl 10O17:Eu (BAM), and (La,Ce)PO4:Ce:Tb (LAP), with or without flux, have been synthesized by a microwave processing technique in a multimode microwave furnace operating at 2.45 GHz. The microwave- synthesized phosphors were comprehensively characterized for particle size, specific surface area, brightness, and luminescence. Although most properties of the microwave-synthesized phosphors were comparable to that of the conventional products, the kinetics of the phosphor synthesis was substantially enhanced in the microwave processing. As a result, the soaking time at the final temperature was reduced by up to 90% compared to a conventional process. In addition, the required synthesis temperature was also lowered by 100-200°C in microwave process, compared to the conventional process for these lamp phosphors. Certain improved property was also observed in some microwave synthesized samples. The mechanism and advantages of microwave process for the lamp phosphor synthesis through solid-state reaction are addressed.

Original languageEnglish (US)
Title of host publicationSolid-State Chemistry of Inorganic Materials VI
PublisherMaterials Research Society
Pages56-61
Number of pages6
ISBN (Print)9781604234336
DOIs
StatePublished - 2006
Event2006 MRS Fall Meeting - Boston, MA, United States
Duration: Nov 27 2006Dec 1 2006

Publication series

NameMaterials Research Society Symposium Proceedings
Volume988
ISSN (Print)0272-9172

Other

Other2006 MRS Fall Meeting
Country/TerritoryUnited States
CityBoston, MA
Period11/27/0612/1/06

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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