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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 34, Iss. 12 — Jun. 15, 2009
  • pp: 1873–1875

Carrier-mediated 1.55 μ m photoluminescence from single Er 3 + center in SnO 2 nanocrystals

Jintao Kong, Haomiao Zhu, Renfu Li, Wenqin Luo, and Xueyuan Chen  »View Author Affiliations


Optics Letters, Vol. 34, Issue 12, pp. 1873-1875 (2009)
http://dx.doi.org/10.1364/OL.34.001873


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Abstract

We report the successful incorporation of Er 3 + ions into SnO 2 nanocrystals via a solvothermal method, with a resulting Er 3 + concentration of the order of 10 19 cm 3 . Upon excitation above the SnO 2 bandgap at 300 nm, intense and well-resolved Er 3 + -related photoluminescence (PL) at 1.55 μ m was observed at room temperature. The results of PL excitation and ultraviolet/visible diffuse reflectance spectra indicate that the excitation is a carrier-mediated process with an energy transfer from the SnO 2 host to Er 3 + . For the above-gap excitation, only a single type of Er 3 + luminescence center located at a centrosymmetric site was identified. The near-infrared luminescence dynamics and the weak PL thermal quenching of Er 3 + were also revealed.

© 2009 Optical Society of America

OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(160.5690) Materials : Rare-earth-doped materials
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence

ToC Category:
Materials

History
Original Manuscript: March 10, 2009
Revised Manuscript: April 24, 2009
Manuscript Accepted: May 13, 2009
Published: June 11, 2009

Citation
Jintao Kong, Haomiao Zhu, Renfu Li, Wenqin Luo, and Xueyuan Chen, "Carrier-mediated 1.55 μm photoluminescence from single Er3+ center in SnO2 nanocrystals," Opt. Lett. 34, 1873-1875 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-12-1873

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