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Luminescence Properties of Eu2+-Doped Glass Ceramics Containing SrF2 Nanocrystals

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The Eu2+-doped glasses and glass ceramics containing SrF2 nanocrystals were prepared and their luminescence properties were investigated. The formation of SrF2 nanocrystals in glass ceramics was confirmed by X-ray diffraction and transmission electron microscopy. The melting in a reducing atmosphere and then the crystallization of glass resulted in the reduction of almost all Eu3+ ions to Eu2+ ions in the glass ceramics. The Eu2+-doped glass ceramics containing SrF2 nanocrystals exhibited a much stronger broad blue emission band and a longer lifetime of excited state than the glasses.
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Document Type: Research Article

Affiliations: 1: State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China 2: Laboratory of Glasses and Ceramics, University of Rennes I, UMR CNRS 6226, 35042 Rennes Cedex, France

Publication date: 2010-09-01

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