Issue 9, 2011
From the journal:

Energy & Environmental Science

Self-powered environmental sensor system driven by nanogenerators†

Minbaek Lee,‡a   Joonho Bae,‡a   Joohyung Lee,b   Churl-Seung Lee,c   Seunghun Hongb  and  Zhong Lin Wang*a  

* Corresponding authors

a School of Material Science and Engineering, Georgia Institute of Technology, Atlanta, GA, USA
E-mail: zhong.wang@mse.gatech.edu
Fax: +1 404 384 3852
Tel: +1 404 894 8008

b Department of Physics and Astronomy, Seoul National University, Seoul, Korea

c Nano technology based Information and Energy Storage Research Center, Korea Electronics Technology Institute, Seongnam-si, Gyeonggi-do, Korea

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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Article information

DOI
https://doi.org/10.1039/C1EE01558C
Article type
Communication
Submitted
27 Apr 2011
Accepted
26 May 2011
First published
23 Jun 2011

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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