Dissolving behavior and electrical properties of ZnO wire in HCl solution

Study of the service behavior of nanomaterials is very important for real applications of nanodevices. In this paper, the dissolving behavior of ZnO wire in HCl solution was investigated, the preferential etching plane and electrical properties upon the treatment were also discussed in detail. The smaller diameter wire resulted in a more pronounced corrosion rate due to the higher specific surface area. The detailed morphological study demonstrated that the ZnO wire had a preferential etching plane {101} in the HCl solution. The etching also strongly reduced the electrical properties of ZnO wires. These results may provide valuable guidance for designing nanodevices based on ZnO micro/nano wires.