在扫描电子显微镜中使用纳米操纵器制作基于单根氧化锌纳米线的交直流纳米发电机

Mei Liu, Mengfan He, Aristide Djoulde, Lingdi Kong, Weilin Su, Xin Bai, Jinbo Chen, Jinjun Rao, Zhiming Wang
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引用次数: 0

摘要

单根氧化锌纳米线(ZnO NWs)具有优异的半导体和压电特性,因此很有希望用于纳米发电机,但有效表征压电特性却具有挑战性。正如本文所报告的,利用电击穿策略构建了具有特定长度的单根氧化锌纳米线。利用扫描电子显微镜中纳米操纵器的高操作性,构建了基于 ZnO-NW 的双探针和三探针结构,分别用于制造交流/直流纳米发电机。对于 ZnO-NW,实现了 -15.31 mV 至 5.82 mV 的交流输出,而对于直流纳米发电机,则实现了 24.3 mV 的输出。此外,还改变了三探针结构的输出方法,以验证单个 ZnO NW 被探针弯曲时的压电电荷分布,并实现了不同振幅的直流输出。这项研究提供了一种低成本、高便利性和可操作性的方法来研究单个氮化硼的交流/直流输出特性,有利于纳米发电机的进一步开发。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Fabricating AC/DC nanogenerators based on single ZnO nanowires by using a nanomanipulator in a scanning electron microscope
Single zinc oxide nanowires (ZnO NWs) are promising for nanogenerators because of their excellent semiconducting and piezoelectric properties, but characterizing the latter efficiently is challenging. As reported here, an electrical breakdown strategy was used to construct single ZnO NWs with a specific length. With the high operability of a nanomanipulator in a scanning electron microscope, ZnO-NW-based two-probe and three-probe structures were constructed for fabricating AC/DC nanogenerators, respectively. For a ZnO NW, an AC output of between −15.31 mV and 5.82 mV was achieved, while for a DC nanogenerator, an output of ∼24.3 mV was realized. Also, the three-probe structure’s output method was changed to verify the distribution of piezoelectric charges when a single ZnO NW is bent by a probe, and DC outputs of different amplitudes were achieved. This study provides a low-cost, highly convenient, and operational method for studying the AC/DC output characteristics of single NWs, which is beneficial for the further development of nanogenerators.
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