| CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
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Preparation and Luminescence Properties of the Na2W2O7 Crystal |
| WEI Qin-Hua, SHI Hong-Sheng**, CHAI Wen-Xiang, QIN Lai-Shun, SHU Kang-Ying
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College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018
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| Cite this article: |
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WEI Qin-Hua, SHI Hong-Sheng, CHAI Wen-Xiang et al 2011 Chin. Phys. Lett. 28 118104 |
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Abstract We discuss the synthesis of Na2W2O7 polycrystalline materials based on the TG−DSC experiment. The luminescence properties of the Na2W2O7 crystal are investigated using the Nd:YAG laser as the excitation source. It is found that the maximum emission peak of the Na2W2O7 crystal is at 525 nm. The 525−nm luminescence decay has two components. One has decay time 1.8 µs and the other 49.1 µs. By comparing this results with that of the Na2W4O13 crystal, it is assumed that the 525−nm luminescence emission of the Na2W2O7 crystal originates from the WO66− octahedral group.
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| Keywords:
81.10.Fq
81.70.Pg
78.60.Ps
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Received: 29 April 2011
Published: 30 October 2011
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| PACS: |
81.10.Fq
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(Growth from melts; zone melting and refining)
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81.70.Pg
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(Thermal analysis, differential thermal analysis (DTA), differential thermogravimetric analysis)
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78.60.Ps
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(Chemiluminescence)
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