Piezoresistive Response of Quasi-One-Dimensional ZnO Nanowires Using an in Situ Electromechanical Device
Piezoresistive Response of Quasi-One-Dimensional ZnO Nanowires Using an in Situ Electromechanical Device
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DOI：
10.1021/acsomega.7b00041
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发表时间：
2017-06-01
期刊：
影响因子：
4.1
通讯作者：
Mishra, Yogendra Kumar
中科院分区：
文献类型：
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作者：
Kaps, Soeren;Bhowmick, Sanjit;Mishra, Yogendra Kumar
金属氧化物的准一维结构在从超灵敏纳米电子器件到先进医疗工具等先进技术中的应用方面显示出巨大的潜力。尤其是由于其压阻效应，氧化锌纳米线在能量采集、柔性电子学、智能传感器等领域显示出优异的性能。在本工作中，我们通过一个简单的火焰传输过程展示了氧化锌纳米和微米级的多功能晶体工程。为了研究其压阻特性，将特定的氧化锌纳米线集成在一个电按拉式装置上，该装置可以施加拉伸应变和原位测量电学性质。从氧化锌纳米线的结果揭示了应力相对于外加的周期电势的周期性变化，这已经从缺陷弛豫的角度进行了讨论。
Quasi-one-dimensional structures from metal oxides have shown remarkable potentials with regard to their applicability in advanced technologies ranging from ultra-responsive nanoelectronic devices to advanced healthcare tools. Particularly due to the piezoresistive effects, zinc oxide (ZnO)-based nanowires showed outstanding performance in a large number of applications, including energy harvesting, flexible electronics, smart sensors, etc. In the present work, we demonstrate the versatile crystal engineering of ZnO nano-and microwires (up to centimeter length scales) by a simple flame transport process. To investigate the piezoresistive properties, particular ZnO nanowires were integrated on an electrical push-to-pull device, which enables the application of tensile strain and measurement of in situ electrical properties. The results from ZnO nanowires revealed a periodic variation in stress with respect to the applied periodic potential, which has been discussed in terms of defect relaxations.