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Optical Materials Express

Optical Materials Express

  • Editor: David Hagan
  • Vol. 4, Iss. 6 — Jun. 1, 2014
  • pp: 1159–1165

Towards ultra-broad emission band by luminescent film with continuously tunable emission wavelength

Bai Xue, Bo Fan, Michel Cathelinaud, Xianping Fan, and Xianghua Zhang  »View Author Affiliations

Optical Materials Express, Vol. 4, Issue 6, pp. 1159-1165 (2014)

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Abstract: Thin films of Ca1-xSrxS:Eu with tunable photoluminescence are fabricated by cathodic magnetron-assisted co-sputtering. Broad and intense luminescence has been observed, and its color shifts progressively from yellow to dark red by changing thin film composition. One promising application of these thin films is for improving the color rendering index of YAG:Ce-coated blue LEDs up to 93. Still broader emission is expected by creating a continuous composition gradient which can be realized by adjusting the power ratio applied on the two targets during the film deposition.

© 2014 Optical Society of America

OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(260.3800) Physical optics : Luminescence
(310.0310) Thin films : Thin films

ToC Category:
Fluorescent and Luminescent Materials

Original Manuscript: January 6, 2014
Revised Manuscript: April 29, 2014
Manuscript Accepted: May 1, 2014
Published: May 12, 2014

Bai Xue, Bo Fan, Michel Cathelinaud, Xianping Fan, and Xianghua Zhang, "Towards ultra-broad emission band by luminescent film with continuously tunable emission wavelength," Opt. Mater. Express 4, 1159-1165 (2014)

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