Nano Express
Ordered Mesostructured CdS Nanowire Arrays with Rectifying Properties
Author affiliations
Key Laboratory of Special Functional Materials, Henan University, Kaifeng, 475001, People’s Republic of China
Citation and License
Nanoscale Research Letters 2009, 4:414-419 doi:10.1007/s11671-008-9247-9
Published: 6 February 2009Abstract
Highly ordered mesoporous CdS nanowire arrays were synthesized by using mesoporous silica as hard template and cadmium xanthate (CdR2) 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, N2adsorption, 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.
