Single-crystal snowflake of Cu7S4:: Low temperature, large scale synthesis and growth mechanism

被引：15

作者：

Cao, Xueli ^{[1
]}

Lu, Qifei ^{[1
]}

Xu, Xijin ^{[1
]}

Yan, Jian ^{[1
]}

Zeng, Haibo ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Anhui, Peoples R China

来源：

MATERIALS LETTERS | 2008年 / 62卷 / 17-18期

关键词：

crystal growth; nanomaterial; p-type semiconductors; diffusion-limited process;

D O I：

10.1016/j.matlet.2007.12.050

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Non-stoichiometric copper sulfides (Cu7S4), With uniform hexapetalous snowflake-like morphology in high yield have been synthesized successfully by a simple and facile one-step solvothermal route with a low temperature (150 degrees C). Copper chloride and thiourea were chosen as the reactants in an ethylenediamine solution. The role of ethylenediamine as a structure-directing coordination molecular template responsible for the morphologies of the copper sulfides and its role as a reducing agent for the non-stoichiometric have been discussed. In addition, temporal growth of the dendrites can be readily followed in this preparation via time-resolved microscopic analysis. The formation mechanism based on the experiments has been proposed. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：2567 / 2570

页数：4

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