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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 37, Iss. 15 — Aug. 1, 2012
  • pp: 3276–3278

Phosphor in glasses with Pb-free silicate glass powders as robust color-converting materials for white LED applications

Yl Kwon Lee, Jin Seok Lee, Jong Heo, Won Bin Im, and Woon Jin Chung  »View Author Affiliations


Optics Letters, Vol. 37, Issue 15, pp. 3276-3278 (2012)
http://dx.doi.org/10.1364/OL.37.003276


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Abstract

Phosphor-in-glass (PiG) typed robust color converters were fabricated using Pb-free silicate glasses for high-power white LED applications. SiO2B2O3RO(R=Ba,Zn) glass powder showed good sintering behavior and high visible transparency under the sintering condition of 750 °C for 30 min without noticeable interaction with phosphors. By simply changing the thickness of the PiG plate or mixing ratio of glass to Y3Al5O12:Ce3+ phosphor, CIE chromaticity coordinates of the LED can be easily controlled. Enhanced thermal quenching property of PiG compared to phosphor with conventional silicone resin suggests its prominent feasibility for high-power/high-brightness white LEDs.

© 2012 Optical Society of America

OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(160.2750) Materials : Glass and other amorphous materials
(230.3670) Optical devices : Light-emitting diodes

ToC Category:
Materials

History
Original Manuscript: May 8, 2012
Revised Manuscript: June 26, 2012
Manuscript Accepted: June 26, 2012
Published: July 31, 2012

Citation
Yl Kwon Lee, Jin Seok Lee, Jong Heo, Won Bin Im, and Woon Jin Chung, "Phosphor in glasses with Pb-free silicate glass powders as robust color-converting materials for white LED applications," Opt. Lett. 37, 3276-3278 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-15-3276


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