Jump to main content
Jump to site search

Issue 37, 2017
Previous Article Next Article

Optimal geometrical design of inertial vibration DC piezoelectric nanogenerators based on obliquely aligned InN nanowire arrays

Author affiliations

Abstract

Piezoelectric nanogenerators have been investigated to generate electricity from environmental vibrations due to their energy conversion capabilities. In this study, we demonstrate an optimal geometrical design of inertial vibration direct-current piezoelectric nanogenerators based on obliquely aligned InN nanowire (NW) arrays with an optimized oblique angle of ∼58°, and driven by the inertial force of their own weight, using a mechanical shaker without any AC/DC converters. The nanogenerator device manifests potential applications not only as a unique energy harvesting device capable of scavenging energy from weak mechanical vibrations, but also as a sensitive strain sensor. The maximum output power density of the nanogenerator is estimated to be 2.9 nW cm−2, leading to an improvement of about 3–12 times that of vertically aligned ZnO NW DC nanogenerators. Integration of two nanogenerators also exhibits a linear increase in the output power, offering an enormous potential for the creation of self-powered sustainable nanosystems utilizing incessantly natural ambient energy sources.

Graphical abstract: Optimal geometrical design of inertial vibration DC piezoelectric nanogenerators based on obliquely aligned InN nanowire arrays

Back to tab navigation

Supplementary files

Publication details

The article was received on 29 Jun 2017, accepted on 17 Aug 2017 and first published on 18 Aug 2017


Article type: Paper
DOI: 10.1039/C7NR04689H
Citation: Nanoscale, 2017,9, 14039-14046
  •   Request permissions

    Optimal geometrical design of inertial vibration DC piezoelectric nanogenerators based on obliquely aligned InN nanowire arrays

    N. Ku, G. Liu, C. Wang, K. Gupta, W. Liao, D. Ban and C. Liu, Nanoscale, 2017, 9, 14039
    DOI: 10.1039/C7NR04689H

Search articles by author

Spotlight

Advertisements