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Appl. Phys. Lett. 97, 053106 (2010); http://dx.doi.org/10.1063/1.3474615 (3 pages)

Selective growth and piezoelectric properties of highly ordered arrays of vertical ZnO nanowires on ultrathin alumina membranes

Liaoyong Wen1,2, Zhengzheng Shao2, Yaoguo Fang1, Kin Mun Wong3, Yong Lei3, Lifeng Bian2, and Gerhard Wilde3

1Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 201800, People’s Republic of China
2Suzhou Institute of Nano-tech and Nano-bionics, CAS, Suzhou 215125, People’s Republic of China
3Institute of Materials Physics and Center for Nanotechnology, University of Muenster, Wilhelm-Klemm-Str. 10, 48149 Muenster, Germany

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(Received 29 June 2010; accepted 8 July 2010; published online 3 August 2010)

A well controlled and cost effective method of fabricating highly ordered arrays of vertical zinc oxide (ZnO) nanowires or nanopores is demonstrated where an ultrathin alumina membrane (UTAM) itself is utilized as a substrate for the selective growth of the ordered arrays. A thin film of gold was thermally evaporated on the UTAM followed by the growth of highly regular ZnO nanowires using chemical vapor deposition (CVD). Alternatively, highly ordered ZnO nanopores arrays were also grown by CVD on the bare UTAM. Additionally, piezoelectric currents were generated from the ZnO nanowires during the conductive atomic force microscopy probe tip scan across the array.

© 2010 American Institute of Physics

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KEYWORDS and PACS

PACS

  • 81.07.Gf

    Nanowires

  • 73.30.+y

    Surface double layers, Schottky barriers, and work functions

  • 77.65.-j

    Piezoelectricity and electromechanical effects

  • 81.16.-c

    Methods of micro- and nanofabrication and processing

  • 81.15.Gh

    Chemical vapor deposition (including plasma-enhanced CVD, MOCVD, ALD, etc.)

ARTICLE DATA

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

For access to fully linked references, you need to log in.
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