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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 13 — Jul. 1, 2013
  • pp: 2280–2282

Yb3+-doped GeS2-Ga2S3-CsCl glass with broad and adjustable absorption/excitation band for near-infrared luminescence

Bo Fan, Bai Xue, Xianghua Zhang, Jean-Luc Adam, and Xianping Fan  »View Author Affiliations


Optics Letters, Vol. 38, Issue 13, pp. 2280-2282 (2013)
http://dx.doi.org/10.1364/OL.38.002280


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Abstract

The luminescent property of Yb3+ ions in GeS2Ga2S3CsCl glasses with different CsCl contents has been studied. All the samples demonstrate a broad excitation band in the UV or/and visible range, depending on the composition, which is attributed to the charge transfer of the Yb3+S2/Cl couple. The width of the excitation/absorption band can be as large as 150 nm. Moreover, with the increase of CsCl content, the peak position of the band can be continuously adjusted from 458 to 380 nm, due to the increase of the local average electronegativity around Yb3+ ions. The broad and adjustable excitation band makes the Yb3+-doped GeS2Ga2S3CsCl glass interesting for modifying the solar spectrum by absorbing strongly in the UV/blue region for emission around 1 μm. This kind of material is the key to adapting the solar spectrum to the response of silicon photovoltaic solar cells.

© 2013 Optical Society of America

OCIS Codes
(160.2750) Materials : Glass and other amorphous materials
(160.5690) Materials : Rare-earth-doped materials
(260.3060) Physical optics : Infrared
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence

ToC Category:
Spectroscopy

History
Original Manuscript: May 2, 2013
Revised Manuscript: May 27, 2013
Manuscript Accepted: May 29, 2013
Published: June 25, 2013

Citation
Bo Fan, Bai Xue, Xianghua Zhang, Jean-Luc Adam, and Xianping Fan, "Yb3+-doped GeS2-Ga2S3-CsCl glass with broad and adjustable absorption/excitation band for near-infrared luminescence," Opt. Lett. 38, 2280-2282 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-13-2280

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