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Article Dans Une Revue Optics Letters Année : 2011

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

Résumé

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.

Domaines

Matériaux
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Dates et versions

hal-00719669 , version 1 (20-07-2012)

Identifiants

Citer

Qun Luo, Xvsheng Qiao, Xianping Fan, Xianghua Zhang. Near-infrared emission of Yb3+ through energy transfer from ZnO to Yb3+ in glass ceramic containing ZnO nanocrystals.. Optics Letters, 2011, 36 (15), pp.2767-9. ⟨10.1364/OL.36.002767⟩. ⟨hal-00719669⟩
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