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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 27 — Dec. 19, 2011
  • pp: 26507–26514

Growth of highly bright-white silica nanowires as diffusive reflection coating in LED lighting

Shuang Xi, Tielin Shi, Lei Zhang, Dan Liu, Wuxing Lai, and Zirong Tang  »View Author Affiliations


Optics Express, Vol. 19, Issue 27, pp. 26507-26514 (2011)
http://dx.doi.org/10.1364/OE.19.026507


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Abstract

Large quantities of silica nanowires were synthesized through thermal treatment of silicon wafer in the atmosphere of N2/H2(5%) under 1200 °C with Cu as catalyst. These nanowires grew to form a natural bright-white mat, which showed highly diffusive reflectivity over the UV-visible range, with more than 60% at the whole range and up to 88% at 350 nm. The utilization of silica nanowires in diffusive coating on the reflector cup of LED is demonstrated, which shows greatly improved light distribution comparing with the specular reflector cup. It is expected that these nanowires can be promising coating material for optoelectronic applications.

© 2011 OSA

OCIS Codes
(160.4760) Materials : Optical properties
(160.6030) Materials : Silica
(230.3670) Optical devices : Light-emitting diodes
(220.4241) Optical design and fabrication : Nanostructure fabrication

ToC Category:
Optical Devices

History
Original Manuscript: September 26, 2011
Revised Manuscript: November 22, 2011
Manuscript Accepted: November 22, 2011
Published: December 13, 2011

Citation
Shuang Xi, Tielin Shi, Lei Zhang, Dan Liu, Wuxing Lai, and Zirong Tang, "Growth of highly bright-white silica nanowires as diffusive reflection coating in LED lighting," Opt. Express 19, 26507-26514 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-27-26507


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