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Pure and Applied Chemistry

The Scientific Journal of IUPAC

Ed. by Burrows, Hugh / Weir, Ron / Stohner, Jürgen

12 Issues per year

Increased IMPACT FACTOR 2012: 3.386
Rank 40 out of 152 in category Multidisciplinary Chemistry in the 2012 Thomson Reuters Journal Citation Report/Science Edition



Oxide nanowire arrays for light-emitting diodes and piezoelectric energy harvesters

Sheng Xu1 / Zhong Lin Wang1

1School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA

Citation Information: Pure and Applied Chemistry. Volume 83, Issue 12, Pages 2171–2198, ISSN (Online) 1365-3075, ISSN (Print) 0033-4545, DOI: 10.1351/PAC-CON-11-08-17, October 2011

Publication History

Published Online:

As an outstanding member in the oxide nanowire family, ZnO nanowire is widely studied for its optical, semiconductive, and piezoelectric properties. PbZrxTi1–xO3 (PZT), usually in the form of polycrystalline thin films, is known for its high piezoelectric coefficient and is an ideal material as actuator. In this review, we first briefly introduce the rational growth of ZnO and PZT nanowire arrays by seedless wet chemical methods. Utilizing the ordered ZnO nanowires grown on p-type substrates, we next present an array of single ZnO nanowire-based blue/near-UV light-emitting diodes (LEDs), including their fabrication process, electroluminescence (EL) spectra, and external quantum efficiency. Finally, we discuss the piezoelectric ZnO and PZT nanowire-enabled three-dimensionally integrated direct- and alternating-current nanogenerators, and their primary roles in self-powered nanosystems and for powering personal microelectronics.

Keywords: energy-harvesting devices; hydrothermal; nanowire arrays; optoelectronics

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