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"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]
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 29 times in current journal articles indexed by Thomson
Scientific during July-August 2007. No other paper published in the last two
years and categorized as chemistry collected a greater number of citations
during that two-month period (although, despite its initial coding as
chemistry, this interdiscplinary work has also drawn a substantial quantity
of cites recorded in physics journals). Prior to the most recent bimonthly
count, citations to the paper have accrued as follows:
May-June 2007: 11 citations
March-April 2007: 19
January-February 2007: 12
November-December 2006: 7
September-October 2006: 2
July-August 2006: 3
Total citations to date: 83
SOURCE: Hot
Papers Database. Included with a subscription to the print newsletter Science
Watch®, available from the
Research Services Group. Packaged on a CD that is mailed with each Science
Watch issue, the Hot
Papers Database contains data on hundreds of highly cited papers published
during the last two years. User interface permits searching by author,
organization, journal, field, and more. Total citations, as well as citations
accrued during successive bimonthly periods, can be assessed and graphed. An
updated CD containing the most recent bimonthly data is mailed with every new
issue of Science
Watch,
six times a year. The CD also includes an electronic version of the Science
Watch
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