| Autor: |
Son, Tran, Top, Le, Tri, Nguyen, Nhan, Ha, Vinh, Lam, Phan, Bach, Kim, Sang, Hieu, Le |
| Zdroj: |
Metals & Materials International; Mar2014, Vol. 20 Issue 2, p337-342, 6p |
| Abstrakt: |
We report the direct electrochemical deposition of ZnO nanorods on an indium tin oxide substrate. The morphology and orientation of the grown ZnO nanorods were investigated as functions of the current density. It is likely that the concentrations of OH and Zn ions, which could be controlled by varying the current density, determine the shape and alignment of the ZnO nanorods. The nanorods were tilted, hexagonal, and prismatic at a low current density (0.1 mA/cm) and vertically aligned and obelisk-shaped at high current densities (greater than 0.6 mA/cm). By using the low and high current densities sequentially in a two-step growth process, vertically aligned, hexagonal, and prismatic ZnO nanorods could be grown successfully. The underlying mechanism responsible for the growth of the ZnO nanorods is also discussed. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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