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Flexible piezoelectric nanogenerators based on a CdS nanowall for self-powered sensors

机译：基于CDS Nanowall用于自动传感器的柔性压电纳米液

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摘要

Wurtzite-structured CdS material is widely used in information sensing and energy harvesting. Based on the piezoelectric property of CdS, we present a flexible piezoelectric nanogenerator (PENG) with three-dimensional-structured CdS nanowall arrays. Under index finger oscillations at a slow rate, the maximal open-circuit voltage and short-circuit current are 1.2 V and 6 nA respectively. Meanwhile, the working mechanism of this PENG was successfully studied with piezoelectric potential distribution and energy band theory respectively. All of the results show that an increase in the bending degree and bending frequency will affect the output of the PENG, suggesting that it can be used as a flexible sensor. In addition, the fabricated PENG can be used as a self-powered pressure sensor relying on the linear relationship between the output voltage and the vertical pressure. This work may provide a new approach to fabricating piezoelectric nanogenerators based on three-dimensional materials as an energy harvester, which may also facilitate the development of flexible and wearable electric sensing technology.
机译：Wurtzite结构CDS材料广泛用于信息传感和能量收集。基于CD的压电性能，我们介绍了一种具有三维结构CDS纳米套筒阵列的柔性压电纳米液（韧性）。在慢速的指数振荡下，最大开路电压和短路电流分别为1.2 V和6NA。同时，分别用压电电位分布和能乐乐队理论成功研究了这一桩的工作机制。所有结果表明，弯曲程度和弯曲频率的增加会影响韧性的输出，表明它可以用作柔性传感器。此外，制造的彭可以用作依赖于输出电压和垂直压力之间的线性关系的自动压力传感器。这项工作可以提供基于三维材料作为能量收割机制造压电纳米电磁炉的新方法，这也可以促进柔性和可佩戴的电感技术的发展。

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  • 来源
    《Nanotechnology》 |2020年第38期|共8页
  • 作者

    Zhang Wei; Yang Hongmei; Li Li; Lin Shiquan; Ji Peiyuan; Hu Chenguo; Zhang Dazhi; Xi Yi;

  • 作者单位

    Chongqing Univ Dept Appl Phys State Key Lab Power Transmiss Equipment &

    Syst Se Chongqing 400044 Peoples R China;

    Chongqing Univ Dept Appl Phys State Key Lab Power Transmiss Equipment &

    Syst Se Chongqing 400044 Peoples R China;

    Chongqing Univ Dept Appl Phys State Key Lab Power Transmiss Equipment &

    Syst Se Chongqing 400044 Peoples R China;

    Chinese Acad Sci Beijing Inst Nanoenergy &

    Nanosyst Beijing 100083 Peoples R China;

    Chongqing Univ Dept Appl Phys State Key Lab Power Transmiss Equipment &

    Syst Se Chongqing 400044 Peoples R China;

    Chongqing Univ Dept Appl Phys State Key Lab Power Transmiss Equipment &

    Syst Se Chongqing 400044 Peoples R China;

    Chongqing Univ Dept Appl Phys State Key Lab Power Transmiss Equipment &

    Syst Se Chongqing 400044 Peoples R China;

    Chongqing Univ Dept Appl Phys State Key Lab Power Transmiss Equipment &

    Syst Se Chongqing 400044 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 特种结构材料;
  • 关键词

    flexible piezoelectric nanogenerator; CdS nanowall array; pressure sensor; gesture sensor;

    机译：柔性压电纳米料;CDS纳米套道阵列;压力传感器;手势传感器;

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