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Proceedings Paper

Enhanced performance of solid state lighting phosphors
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Paper Abstract

The properties of several solid state lighting phosphor compounds have been enhanced through the application of advanced material processing and particle encapsulation techniques. Also higher light extraction efficiencies from the pump LED were achieved by index-matching the refractive index of the phosphor to that of the InGaN chip. New solid-state- reaction protocols have produced a significant increase in the intrinsic efficiency of the orthosilicate yellow phosphor compared to the traditional YAG:Ce phosphor. In addition, the stability of phosphor materials in high humidity environments was increased significantly using metal oxide coatings applied by vapor deposition.

Paper Details

Date Published: 14 September 2007
PDF: 9 pages
Proc. SPIE 6669, Seventh International Conference on Solid State Lighting, 66690L (14 September 2007); doi: 10.1117/12.741623
Show Author Affiliations
Hisham Menkara, PhosphorTech Corp. (United States)
Brent K. Wagner, PhosphorTech Corp. (United States)
Christopher J. Summers, PhosphorTech Corp. (United States)

Published in SPIE Proceedings Vol. 6669:
Seventh International Conference on Solid State Lighting
Ian T. Ferguson; Nadarajah Narendran; Tsunemasa Taguchi; Ian E. Ashdown, Editor(s)

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