Yuan Na, Cheng Gang, An Yanqing, Du Zuliang, Wu Sixin
Key Laboratory of Special Functional Materials, Henan University, Kaifeng, 475001 People's Republic of China.
Nanoscale Res Lett. 2009 Feb 6;4(5):414-419. doi: 10.1007/s11671-008-9247-9.
Highly ordered mesoporous CdS nanowire arrays were synthesized by using mesoporous silica as hard template and cadmium xanthate (CdR(2)) as a single precursor. Upon etching silica, mesoporous CdS nanowire arrays were produced with a yield as high as 93 wt%. The nanowire arrays were characterized by XRD, N(2) adsorption, TEM, and SEM. The results show that the CdS products replicated from the mesoporous silica SBA-15 hard template possess highly ordered hexagonal mesostructure and fiber-like morphology, analogous to the mother template. The current-voltage characteristics of CdS nanoarrays are strongly nonlinear and asymmetrical, showing rectifying diode-like behavior.
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