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Issue 48, 2009

Growth of ZnOnanotube arrays and nanotube based piezoelectric nanogenerators

Author affiliations

Abstract

We present a systematic study of the growth of hexagonal ZnO nanotube arrays using a solution chemical method by varying the growth temperature (<100 °C), time and solution concentration. A piezoelectric nanogenerator using the as-grown ZnO nanotube arrays has been demonstrated for the first time. The nanogenerator gives an output voltage up to 35 mV. The detailed profile of the observed electric output is understood based on the calculated piezoelectric potential in the nanotube with consideration of the Schottky contact formed between the metal tip and the nanotube; and the mechanism agrees with that proposed for nanowire based nanogenerator. Our study shows that ZnO nanotubes can also be used for harvesting mechanical energy.

Graphical abstract: Growth of ZnO nanotube arrays and nanotube based piezoelectric nanogenerators

Article information


Submitted
25 Aug 2009
Accepted
02 Oct 2009
First published
29 Oct 2009

J. Mater. Chem., 2009,19, 9260-9264
Article type
Paper

Growth of ZnO nanotube arrays and nanotube based piezoelectric nanogenerators

Y. Xi, J. Song, S. Xu, R. Yang, Z. Gao, C. Hu and Z. L. Wang, J. Mater. Chem., 2009, 19, 9260 DOI: 10.1039/B917525C

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