Besom-like CdWO₄ structures composed of single-crystalline nanorods grown under a simple hydrothermal process in ultra-wide pH range

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• 作者：Mirabbos Hojamberdiev ; Raghunath Kanakala ; Olim Ruzimuradov ; Yinglin Yan ; Gangqiang Zhu ; Yunhua Xu
• 关键词：Cadmium tungstate ; Electron microscopy ; Nanocrystalline materials ; Optical property ; Semiconductors
• 刊名：Optical Materials
• 出版年：2012
• 出版时间：September, 2012
• 年：2012
• 卷：34
• 期：11
• 页码：1954-1957
• 全文大小：833 K

文摘

Besom-like CdWO₄ structures composed of single-crystalline nanorods were prepared by hydrothermal process with a wide range of pH, without the assistance of any template. The phase composition, crystal structure and morphology of final product were characterized by XRD, SEM and TEM. The obtained results revealed that with increasing the pH of synthesizing solution the size of besom-like CdWO₄ structures composed of single-crystalline nanorods has become larger. The nanorods in the sample synthesized at pH = 11 have widths of ¡«50 nm and lengths of <2.0 ¦Ìm. The photoluminescence (PL) emission spectra of samples show a blue-green light emission centered at 475 nm, of which intensity increases due to the increase in particle size and crystallinity with the increase in the pH of synthesizing solution.