期刊
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
卷 178, 期 1, 页码 109-116出版社
ELSEVIER
DOI: 10.1016/j.mseb.2012.10.026
关键词
Chemical synthesis; Crystal growth; Nanostructures; Semiconductors
资金
- National Basic Research Program of China (973 Program) [2013CB932903]
- National Science Foundations of China [61205057]
- China Postdoctoral Science special Foundation [2012T50488]
- China Postdoctoral Science Foundation [2011M500896]
- Jiangsu Planned Projects for Postdoctoral Research Funds [1102015C]
- Natural Science Foundation of Education Bureau of Jiangsu Province [12KJB180009]
- Scientific Research Foundation of Nanjing University of Posts and Telecommunications [NY210083]
- Open Research Fund of State Key Laboratory of Bioelectronics, Southeast University
- open research fund of Key Laboratory of MEMS of Ministry of Education, Southeast University
In the present study, we have successfully synthesized the novel heterostructure of NiS nanoparticle (NP)/CdS nanowire (NW) through solution approach. The first step, CdS nanowires were synthesized by a convenient solvothermal route. Then, NiS nanoparticles were grown on the surface of CdS nanowires in a chemical solution of NiCl2 center dot 6H(2)O and anhydrous ethanol at 200 degrees C. The new catalyst-assisted growth mechanism of the NiS NP/CdS NW heterostructure has been tentatively discussed on the basis of experimental results. A detailed study of the effect of experimental parameters, such as reaction time, reaction temperature, and reaction solvent are also studied. The as-prepared products are characterized by field-emission scan electron microscopy (FESEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS), and their optical properties are measured by Raman spectra and PL spectra. Furthermore, using CdS nanowires and NiS NP/CdS NW heterostructure as examples, our study suggests that this general method can be employed for construction of other semiconductor heterostructures with novel properties. (C) 2012 Elsevier B.V. All rights reserved.
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