Flexible high-output nanogenerator based on lateral ZnO nanowire array

Guang Zhu, Rusen Yang, Sihong Wang, Zhong Lin Wang

Research output: Journal PublicationArticlepeer-review

647 Citations (Scopus)

Abstract

We report here a simple and effective approach, named scalable sweeping-printing-method, for fabricating flexible high-output nanogenerator (HONG) that can effectively harvesting mechanical energy for driving a small commercial electronic component. The technique consists of two main steps. In the first step, the vertically aligned ZnO nanowires (NWs) are transferred to a receiving substrate to form horizontally aligned arrays. Then, parallel stripe type of electrodes are deposited to connect all of the NWs together. Using a single layer of HONG structure, an open-circuit voltage of up to 2.03 V and a peak output power density of ∼11 mW/cm3 have been achieved. The generated electric energy was effectively stored by utilizing capacitors, and it was successfully used to light up a commercial light-emitting diode (LED), which is a landmark progress toward building self-powered devices by harvesting energy from the environment. This research opens up the path for practical applications of nanowire-based piezoelectric nanogeneragtors for self-powered nanosystems.

Original languageEnglish
Pages (from-to)3151-3155
Number of pages5
JournalNano Letters
Volume10
Issue number8
DOIs
Publication statusPublished - 11 Aug 2010
Externally publishedYes

Keywords

  • light-emitting diode
  • Nanogenerator
  • nanowire
  • self-powering
  • ZnO

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry (all)
  • Materials Science (all)
  • Condensed Matter Physics
  • Mechanical Engineering

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