Chin. Phys. Lett.  2011, Vol. 28 Issue (11): 118104    DOI: 10.1088/0256-307X/28/11/118104
CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
Preparation and Luminescence Properties of the Na2W2O7 Crystal
WEI Qin-Hua, SHI Hong-Sheng**, CHAI Wen-Xiang, QIN Lai-Shun, SHU Kang-Ying
College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018
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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.
Keywords: 81.10.Fq      81.70.Pg      78.60.Ps     
Received: 29 April 2011      Published: 30 October 2011
PACS:  81.10.Fq (Growth from melts; zone melting and refining)  
  81.70.Pg (Thermal analysis, differential thermal analysis (DTA), differential thermogravimetric analysis)  
  78.60.Ps (Chemiluminescence)  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/28/11/118104       OR      https://cpl.iphy.ac.cn/Y2011/V28/I11/118104
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WEI Qin-Hua
SHI Hong-Sheng
CHAI Wen-Xiang
QIN Lai-Shun
SHU Kang-Ying
[1] Wei Q H, Shi H S et al 2010 J. Cryst. Growth 312 1883
[2] Weber M J 2002 J. Lumin. 100 35
[3] Lecoq P and Korzhik M 2000 IEEE. Trans. Nucl. Sci. 47 1311
[4] Kraus H, Mikhailik V B, Ramachers Y, Day D, Hutton K B and Telfer J 2005 Phys. Lett. B 610 37
[5] Mikhailik V B, Kraus H, Henry S and Tolhurst A J B 2007 Phys. Rev. B 75 184308
[6] Dahlborg M A et al 2002 J. Solid State Chem. 167 525
[7] Itoh M and Oishi S 2001 Mater. Res. Bull. 36 1495
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