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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 9 — Apr. 23, 2012
  • pp: 10034–10041

Tunable color temperature of Ce3+/Eu2+, 3+ co-doped low silica aluminosilicate glasses for white lighting

A. C. P. Rocha, L. H. C. Andrade, S. M. Lima, A. M. Farias, A. C. Bento, M. L. Baesso, Y. Guyot, and G. Boulon  »View Author Affiliations


Optics Express, Vol. 20, Issue 9, pp. 10034-10041 (2012)
http://dx.doi.org/10.1364/OE.20.010034


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Abstract

In this paper we report results of tunable lighting in Ce3+/Eu2+,3+ doped low silica calcium aluminosilicate glass. Optical spectroscopy experiments indicate that there is a red color compensation from Eu2+ and Eu3+ to the green emission from Ce3+, resulting in a broad and tunable emission spectra depending on the excitation wavelength. This result analysed in the CIE 1976 color diagram shows a close distance from the Plank emission and a correlated color temperature, varying from 5200 to 3500K. This indicates that our system can be easily excited by GaN based blue LEDs, being an interesting phosphor for white lighting devices.

© 2012 OSA

OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(160.2750) Materials : Glass and other amorphous materials
(300.6550) Spectroscopy : Spectroscopy, visible
(330.7310) Vision, color, and visual optics : Vision

ToC Category:
Materials

History
Original Manuscript: February 7, 2012
Revised Manuscript: February 29, 2012
Manuscript Accepted: March 1, 2012
Published: April 17, 2012

Virtual Issues
Vol. 7, Iss. 6 Virtual Journal for Biomedical Optics

Citation
A. C. P. Rocha, L. H. C. Andrade, S. M. Lima, A. M. Farias, A. C. Bento, M. L. Baesso, Y. Guyot, and G. Boulon, "Tunable color temperature of Ce3+/Eu2+, 3+ co-doped low silica aluminosilicate glasses for white lighting," Opt. Express 20, 10034-10041 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-9-10034


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