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Issue 9, 2011
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Self-powered environmental sensor system driven by nanogenerators

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Abstract

We demonstrate a fully stand-alone, self-powered environmental sensor driven by nanogenerators with harvesting vibration energy. Such a system is made of a ZnO nanowire-based nanogenerator, a rectification circuit, a capacitor for charge storage, a signal transmission LED light and a carbon nanotube-based Hg2+ ion sensor. The circuit lights up the LED indicator when it detects mercury ions in water solution. It is the first demonstration of a nanomaterial-based, self-powered sensor system for detecting a toxic pollutant.

Graphical abstract: Self-powered environmental sensor system driven by nanogenerators

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Publication details

The article was received on 27 Apr 2011, accepted on 26 May 2011 and first published on 23 Jun 2011


Article type: Communication
DOI: 10.1039/C1EE01558C
Citation: Energy Environ. Sci., 2011,4, 3359-3363
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    Self-powered environmental sensor system driven by nanogenerators

    M. Lee, J. Bae, J. Lee, C. Lee, S. Hong and Z. L. Wang, Energy Environ. Sci., 2011, 4, 3359
    DOI: 10.1039/C1EE01558C

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