期刊
MATERIALS
卷 16, 期 1, 页码 -出版社
MDPI
DOI: 10.3390/ma16010108
关键词
nanowires; ZnO nanowires; ZnO; electric-field-assisted growth
This paper proposes an AC/DC electric-field-assisted wet chemical method for growing ZnO nanowires directly on discharging devices. The nanowires cover the whole electrode and meet the requirements of gas discharge. The study establishes parameters for ZnO nanowire growth and provides a feasible way to use ZnO nanowires as needle anodes.
Using ZnO nanowires as needle anodes in gas discharge is helpful for maintaining continuous discharge with a relatively low voltage. It is necessary that the ZnO nanowires are far enough apart to guarantee no electric field weakening and that the nanowire anodes are easy to assemble together with the discharging devices. An AC/DC electric-field-assisted wet chemical method is proposed in this paper. It was used to grow ZnO nanowires directly on discharging devices. The nanowires covered the whole electrode in the case in which only a DC field was applied. Moreover, the tips of the nanowires were scattered, similar to the results observed under the application of AC fields. The average distance between the tips of the highest nanowires was approximately equal to 4 mu m, which almost meets the requirement of gas discharge. The research concerning growing ZnO nanowires directly on PCBs shown that, at the current time, ZnO nanowires on PCBs did not meet the requirements of gas discharge; however, in this study, the parameters regarding ZnO nanowire growth were established.
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