Wang Xudong, Song Jinhui, Liu Jin, Wang Zhong Lin
School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0245, USA.
Science. 2007 Apr 6;316(5821):102-5. doi: 10.1126/science.1139366.
We have developed a nanowire nanogenerator that is driven by an ultrasonic wave to produce continuous direct-current output. The nanogenerator was fabricated with vertically aligned zinc oxide nanowire arrays that were placed beneath a zigzag metal electrode with a small gap. The wave drives the electrode up and down to bend and/or vibrate the nanowires. A piezoelectric-semiconducting coupling process converts mechanical energy into electricity. The zigzag electrode acts as an array of parallel integrated metal tips that simultaneously and continuously create, collect, and output electricity from all of the nanowires. The approach presents an adaptable, mobile, and cost-effective technology for harvesting energy from the environment, and it offers a potential solution for powering nanodevices and nanosystems.
我们开发了一种由超声波驱动以产生连续直流输出的纳米线纳米发电机。该纳米发电机是由垂直排列的氧化锌纳米线阵列制成，这些阵列放置在具有小间隙的之字形金属电极下方。超声波驱动电极上下移动，使纳米线弯曲和/或振动。压电 - 半导体耦合过程将机械能转化为电能。之字形电极充当并行集成金属尖端阵列，可同时并持续地从所有纳米线产生、收集和输出电力。该方法为从环境中收集能量提供了一种适应性强、可移动且经济高效的技术，并且为纳米设备和纳米系统供电提供了一种潜在的解决方案。
