| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Preparation and Photoluminescence Properties of Eu2+−Doped Oxyapatite-Type SrxLa10−x (SiO4)6O3−x/2 |
| CUI Zhao-Feng1, YUAN Shuang-Long1,2**, YANG Yun-Xia1, François CHEVIRE 2**, Franck TESSIER2, CHEN Guo-Rong1
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1Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237
2UMR CNRS 6226 Sciences Chimiques de Rennes, équipe Verres et Céramiques, Université de Rennes 1, 35042 Rennes cedex, France
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CUI Zhao-Feng, YUAN Shuang-Long, YANG Yun-Xia et al 2011 Chin. Phys. Lett. 28 014209 |
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Abstract Eu2+−doped oxyapatite SrxLa10−x(SiO4)6O3−x/2 phosphors are prepared by solid-state reaction at high temperatures under reducing atmosphere. Their crystal structures and photoluminescence are investigated by x-ray diffraction (XRD) and fluorescence spectroscopy, respectively. The XRD results indicate that the samples are pure oxyapatite phase (P63/m space group). The fluorescence spectra show two peaks corresponding to two sites (4f and 6h sites) for Eu2+ in the host lattice. As the Eu2+ content influences the intensity ratio of the two observed emission peaks, the photoluminescence mechanism is discussed.
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| Keywords:
42.70.-a
78.55.Hx
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Received: 03 November 2010
Published: 23 December 2010
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