期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2014
卷号：5
期号：S2
页码：2522-2526
出版社：University of Mohammed Premier Oujda
摘要：In the present work, we investigate the structural and luminescence properties of the bismuth tungstate Bi 2 WO 6 . This phase is interesting because of its electrical [1], photocatalytic [2] and luminescence [3] properties. Polycrystalline samples were elaborated using a co precipitation technique followed by a calcinatio n process at different temperatures (300, 400, 600 and 900°C). The samples were characterized by X -ray diffraction, scanning and transmission electron microscopy (SEM, TEM) analyses. The space group Pca2 1 has been confirmed for this phase. The transmission electron microscopy analysis showed that this structural configuration is valid at a very low scale. Crystal cell parameters and cell volume depend on elaboration temperature. Luminescence experiments of these polycrystalline samples were performed under UV -laser light irradiation. Luminescence intensities depend on the elaboration conditions.
