Double-dentate solvent-directed growth of multi-armed CdS nanorod-based semiconductors

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• 作者：Xuchu Ma ; Fen Xu ; Yankuan Liu ; Xianming Liu ; Zude Zhang and Yitai Qian
• 关键词：A. Chalcogenides ; A. Nanostructures ; B. Chemical synthesis ; C. X-ray diffraction
• 刊名：Materials Research Bulletin
• 出版年：2005
• 出版时间：2005
• 年：2005
• 卷：40
• 期：12
• 页码：2180-2188
• 全文大小：200 K

文摘

The multi-armed CdS architectures can be synthesized from the reaction of the anhydrous CdCl₂ and sulfur powders in ethylenediamine, in which a simple one-step reactant–solvent synchronous (RSS) co-assisted effect was proposed to be responsible to the growth of the multi-armed structures. The as-prepared products were characterized by XRD, XPS and TEM. In addition, their optical properties were also shown by UV–vis and fluorescence spectrum. FT-IR spectrum indicated that the dissociation of ethylenediamine molecule absorbed on the surface of CdS resulted in the formation of intermediate CdS(en)_m−n cores and thus provided the condition for the anisotropy growth of CdS. The present technique may give a clue to grow the one-dimensional nano-sized semiconductors by the proper choice of the reactant and the solvent.