Luminescence Properties of Eu2+-Doped Glass Ceramics Containing SrF2 Nanocrystals
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
State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
Laboratory of Glasses and Ceramics, University of Rennes I, UMR CNRS 6226, 35042 Rennes Cedex, France
Publication date: 2010-09-01