"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 25
times in current journal articles indexed by Clarivate
during January-February 2008. During that two-month period, only one other
non-review paper indexed within the last two years under the heading of
chemistry collected a higher number of citations. (As was noted in its
previous "Hot Paper" appearance, this interdisciplinary report, although
initially coded as chemistry, has also drawn a substantial number of recent
citations recorded in physics journals.) Prior to the most recent bimonthly
count, citations to the paper have accrued as follows:
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