A facile solution route to CuS hexagonal narioplatelets

被引：36

作者：

Liu, Yanshan ^{[1
]}

Qin, Donghuan ^{[1
]}

Wang, Li ^{[1
]}

Cao, Yong ^{[1
]}

机构：

[1] S China Univ Technol, Inst Polymer Optoelect Mat & Devices, Key Lab Special Funct Mat, Guangzhou 510640, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2007年 / 102卷 / 2-3期

基金：

中国国家自然科学基金;

关键词：

nanostructures; semiconductors; chemical synthesis; transmission electron microscopy;

D O I：

10.1016/j.matchemphys.2006.12.004

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report a facile solution route for the synthesis of single-crystalline and hexagonal CuS nanoplatelets by thermolysing single-precursor copper ethylxanthate [Cu(exan)(2)] in hexadecylamine (HDA) at moderate temperature. The morphology and structure of CuS nanocrystals (NCs) are characterized by means of XRD, TEM, HRTEM, SAED and UV-vis absorption spectroscopy. Key synthetic parameters, such as reaction temperature, reaction time and precursor concentration, which have a great influence on the size and shape of the products, have been comprehensively investigated. It was found out that the nanoplatelets are self-assembled into one-dimensional ordered string-like structure under appropriate conditions. The solvent used to disperse the nanocrystals can affect the self-assembly of the CuS nanoplatelets, and polar solvent favors the formation of long strings. The possible mechanisms of forming hexagonal nanoplatelets and self-assembled strings are discussed. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：201 / 206

页数：6

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