"Piezoelectric nanogenerators based on zinc oxide nanowire
arrays," by Zhong Lin Wang and Jinhui Song, Science,
312(5771): 242-6, 14 April 2006.
[Authors' affiliations: Georgia Institute of Technology, Atlanta; Peking
University, China]
[Authors' affiliations: Georgia Institute of Technology, Atlanta; Peking
University, China]
Abstract: "We have converted nanoscale mechanical energy
into electrical energy by means of piezoelectric zinc oxide
nanowire (NW) arrays. The aligned NWs are deflected with a conductive
atomic force microscope tip in contact mode. The coupling of piezoelectric
and semiconducting properties in zinc oxide creates a strain field and
charge separation across the NW as a result of its bending. The rectifying
characteristic of the Schottky barrier formed between the metal tip and the
NW leads to electrical current generation. The efficiency of the NW based
piezoelectric power generator is estimated to be 17 to 30%. This approach
has the potential of converting mechanical, vibrational, and/or hydraulic
energy into electricity for powering nanodevices."
This 2006 report from Science was cited 28
times in current journal articles indexed by Thomson
Scientific during November-December 2007. This was the highest bimonthly
total of any non-review paper published in the last two years and
originally categorized under chemistry (although, recently, this
interdiscplinary work has also drawn a substantial number of cites recorded
in physics journals). Prior to the most recent bimonthly count, citations
to the paper have accrued as follows:
September-October 2007: 22 citations
July-August 2007: 29
May-June 2007: 11
March-April 2007: 19
January-February 2007: 12
November-December 2006: 7
September-October 2006: 2
July-August 2006: 3
Total citations to date: 133
SOURCE:
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