CTAB Assisted Synthesis of CuS Microcrystals: Synthesis, Mechanism, and Electrical Properties

doi:10.1016/j.jmst.2013.09.004

CTAB Assisted Synthesis of CuS Microcrystals: Synthesis, Mechanism, and Electrical Properties

Chunyan Wu¹⁾, Guofang Zhou¹⁾, Dun Mao¹⁾, Zihan Zhang¹⁾, Yiliang Wu¹⁾, Wenjian Wang¹⁾,Linbao Luo¹⁾, Li Wang¹⁾, Yongqiang Yu¹⁾, Jigang Hu¹⁾, Zhifeng Zhu¹⁾, Yan Zhang¹⁾, Jiansheng Jie²⁾

1) School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei 230009, China
2) Institute of Functional Nano & Soft Materials (FUNSOM) and Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China

Received:2012-05-28 Revised:2012-10-02 Online:2013-11-30 Published:2013-11-06
Contact: C. Wu,J. Jie
Supported by:
National Natural Science Foundation of China (Nos. 20901021, 51172151, 61106010 and 21101051), the National Basic Research Program of China (Nos.2010CB301802 and 2012CB932400), the Natural Science Foundation of Anhui Province of China (No. 11040606Q26) and the Fundamental Research Funds for the Central Universities (Nos. 2013HGXJ0195 and 2013HGCH0012).

Abstract

Abstract:

CuS microcrystals were successfully prepared through a mild solvothermal reaction in ethylene glycol (EG) with the assistance of cationic surfactant cetyltrimethylammonium bromide (CTAB). An interesting morphology evolution from flower-like microspheres to hollow microspheres, and finally to smooth nanoflakes was observed when increasing the amount of CTAB. The products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and UV–vis spectroscopy. It was found that the amount of CTAB played an important role in determining the morphology of the CuS microcrystals. Electrical measurement reveals that the as-prepared CuS microspheres were of high conductivity, which might favor their device applications. It is expected that CuS microcrystals with controlled morphologies and structures will have important applications in solar cells. This simple but effective method could also be extended to the controlled growth of other inorganic microcrystals.

Key words: Copper sulfide, Microcrystals, Solvothermal, Cationic surfactant cetyltrimethylammonium bromide (CTAB), Electrical conductivity

Chunyan Wu, Guofang Zhou, Dun Mao, Zihan Zhang, Yiliang Wu, Wenjian Wang,Linbao Luo, Li Wang, Yongqiang Yu, Jigang Hu, Zhifeng Zhu, Yan Zhang, Jiansheng Jie. CTAB Assisted Synthesis of CuS Microcrystals: Synthesis, Mechanism, and Electrical Properties[J]. J. Mater. Sci. Technol., DOI: 10.1016/j.jmst.2013.09.004.

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