Kaps Sören, Bhowmick Sanjit, Gröttrup Jorit, Hrkac Viktor, Stauffer Douglas, Guo Hua, Warren Oden L, Adam Jost, Kienle Lorenz, Minor Andrew M, Adelung Rainer, Mishra Yogendra Kumar
Institute for Materials Science, Kiel University, Kaiserstraße 2, D-24143 Kiel, Germany.
Bruker Nano Surfaces, Minneapolis, Minnesota 55344, United States.
ACS Omega. 2017 Jun 28;2(6):2985-2993. doi: 10.1021/acsomega.7b00041. eCollection 2017 Jun 30.
Quasi-one-dimensional structures from metal oxides have shown remarkable potentials with regard to their applicability in advanced technologies ranging from ultraresponsive 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.
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显示出巨大潜力。特别是由于压阻效应，基于氧化锌（ZnO）的纳米线在包括能量收集、柔性电子、智能传感器等大量应用中表现出卓越性能。在本工作中，我们通过简单的火焰传输过程展示了氧化锌纳米线和微米线（长达厘米长度尺度）的多功能晶体工程。为了研究压阻特性，将特定的氧化锌纳米线集成到一个电动推挽装置上，该装置能够施加拉伸应变并原位测量电学性质。氧化锌纳米线的结果揭示了应力相对于所施加的周期性电势的周期性变化，这已根据缺陷弛豫进行了讨论。
