Robust optimization of the output voltage of nanogenerators by statistical design of experiments
Robust optimization of the output voltage of nanogenerators by statistical design of experiments
复制标题
DOI：
10.1007/s12274-010-0029-1
复制
发表时间：
2010-09
期刊：
影响因子：
9.9
通讯作者：
Jinhui Song;Huizhi Xie;Wenzhuo Wu;V. Roshan Joseph;C. F. Jeff Wu;Z. Wang
中科院分区：
文献类型：
--
作者：
Jinhui Song;Huizhi Xie;Wenzhuo Wu;V. Roshan Joseph;C. F. Jeff Wu;Z. Wang
纳米发电机首先是通过使用导电原子力显微镜 (AFM) 尖端偏转对齐的 ZnO 纳米线来演示的。纳米发电机的输出受三个参数的影响：尖端法向力、尖端扫描速度和尖端磨损。在这项工作中，使用实验统计设计进行了系统的实验研究，以检查这三个参数对输出的综合影响。已经建立了统计模型来分析数据并预测最佳参数设置。对于锥角70°的AFM尖端涂有Pt和直径为50 nm、长度为600 nm至1 μm的ZnO纳米线，发现纳米发生器的优化参数为法向力137 nN和扫描速度40 μm/s，而不是常规设置的法向力120 nN和扫描速度30 μm/s。经过优化设置的纳米发电机的平均输出电压是传统设置的纳米发电机的三倍。
Nanogenerators were first demonstrated by deflecting aligned ZnO nanowires using a conductive atomic force microscopy (AFM) tip. The output of a nanogenerator is affected by three parameters: tip normal force, tip scanning speed, and tip abrasion. In this work, systematic experimental studies have been carried out to examine the combined effects of these three parameters on the output, using statistical design of experiments. A statistical model has been built to analyze the data and predict the optimal parameter settings. For an AFM tip of cone angle 70° coated with Pt, and ZnO nanowires with a diameter of 50 nm and lengths of 600 nm to 1 μm, the optimized parameters for the nanogenerator were found to be a normal force of 137 nN and scanning speed of 40 μm/s, rather than the conventional settings of 120 nN for the normal force and 30 μm/s for the scanning speed. A nanogenerator with the optimized settings has three times the average output voltage of one with the conventional settings.