Near-infrared emission of Yb3+ through energy transfer from ZnO to Yb3+ in glass ceramic containing ZnO nanocrystals

Yb(3+)-doped glass and glass ceramic containing ZnO nanocrystals were prepared by the melting-quenching method and subsequent heat treatment. Intense near-IR emission around 1000 nm that originated from the transition of Yb(3+):(2)F(5/2)→(2)F(7/2) was generated as a result of energy transfer from ox...

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Bibliographic Details
Published in:Optics letters 2011-08, Vol.36 (15), p.2767-2769
Main Authors: Luo, Qun, Qiao, Xvsheng, Fan, Xianping, Zhang, Xianghua
Format: Article
Language:English
Subjects:
Ceramics - chemistry
Chemical Sciences
Energy Transfer
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Glass - chemistry
Infrared Rays
Luminescent Measurements
Material chemistry
Nanoparticles - chemistry
Optics
Physics
Ytterbium - chemistry
Zinc Oxide - chemistry
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Summary:Yb(3+)-doped glass and glass ceramic containing ZnO nanocrystals were prepared by the melting-quenching method and subsequent heat treatment. Intense near-IR emission around 1000 nm that originated from the transition of Yb(3+):(2)F(5/2)→(2)F(7/2) was generated as a result of energy transfer from oxygen interstitials in ZnO nanocrystals to Yb(3+) with energy transfer efficiency of about 10%. The quantum yield for the near-IR emission of Yb(3+) under the excitation of 390 nm was about 16.7%. These materials have potential application in achieving high-efficiency Si solar cells via spectrum modification.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.36.002767