Growth of ZnO nanotube arrays and nanotube based piezoelectric nanogenerators
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AbstractWe 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. © 2009 The Royal Society of Chemistry.
CitationXi Y, Song J, Xu S, Yang R, Gao Z, et al. (2009) Growth of ZnO nanotube arrays and nanotube based piezoelectric nanogenerators. J Mater Chem 19: 9260. Available: http://dx.doi.org/10.1039/b917525c.
SponsorsThis research was supported by DARPA (Army/AMOCOM/REDSTONE AR, W31P4Q-08-1-0009), BESDOE (DE-FG-02-07ER46394), Air Force Office (FA9550-08-1-0046), DARPA/ARO W911NF-08-1-0249, KAUST Global Research Partnership, and NSF. Yi Xi and Zhiyuan Gao thank the partial fellowship supported by the China Scholarship Council (CSC) (No. 20083019). Chenguo Hu and Yi Xi thanks the fund of NSFC (60976055) and Postgraduates' Science and Innovation Fund (200801CIA0080267) of Chongqing University.
PublisherRoyal Society of Chemistry (RSC)
JournalJournal of Materials Chemistry