Jump to main content
Jump to site search

Issue 1, 2019
Previous Article Next Article

Gigantic enhancement of electricity generation in piezoelectric semiconductors by creating pores as a universal approach

Author affiliations

Abstract

In the Internet of Things era, both self-powered nanodevices and nanogenerators (NGs) that harvest energy from mechanical vibrations are highly attractive, prompting a rapid surge in research on enhancing their performance. We demonstrate a versatile approach for diverse materials, by altering the microstructure with discontinuous nano-pores in one-dimensional nanostructures, which can be readily extended to higher-dimensional single crystal materials, such as epitaxial thin films. This novel approach is demonstrated for two applications, direct-current (DC) NGs and piezotronics, by taking ZnO as a model, where remarkably enhanced performance is demonstrated in theoretical simulations and confirmed by experiments. Here, we report that porous ZnO nanowire based DC-NGs demonstrated ∼23 times enhancement of output performance, and strain-gated transistors exhibited ∼6 times enhancement of force sensitivity. This can potentially augment energy harvesting and pressure sensing for many applications, such as self-powered nano-devices and touch panels.

Graphical abstract: Gigantic enhancement of electricity generation in piezoelectric semiconductors by creating pores as a universal approach

Back to tab navigation

Supplementary files

Publication details

The article was received on 17 Jul 2018, accepted on 12 Dec 2018 and first published on 12 Dec 2018


Article type: Paper
DOI: 10.1039/C8EE02081G
Citation: Energy Environ. Sci., 2019,12, 410-417

  •   Request permissions

    Gigantic enhancement of electricity generation in piezoelectric semiconductors by creating pores as a universal approach

    Y. Su, K. Gupta, Y. Hsiao, R. Wang and C. Liu, Energy Environ. Sci., 2019, 12, 410
    DOI: 10.1039/C8EE02081G

Search articles by author

Spotlight

Advertisements