GaN nanowires for piezoelectric generators

Abstract : We demonstrate the high potential of GaN nanowires (NWs) to convert mechanical energy into electric energy. Using an atomic force microscope equipped with a Resiscope module, an average output voltage of –74 mV and a maximum of –443 mV ± 2% per NW were measured. This latter value is the highest reported so far for GaN NWs. By considering these output signals, we have estimated an average and a maximum power density generated by one layer of GaN NWs of the order of 5.9 mW/cm2 and 130 mW/cm2, respectively. These results offer promising prospects for the use of GaN NWs for high-efficiency ultracompact piezogenerators.
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physica status solidi (RRL) - Rapid Research Letters, Wiley-VCH Verlag, 2014, 8 (5), pp.414-419. 〈10.1002/pssr.201409105〉
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Contributeur : Thierry Leblanc <>
Soumis le : mercredi 10 décembre 2014 - 17:07:20
Dernière modification le : jeudi 11 janvier 2018 - 06:19:11

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Noelle Gogneau, Pascal Chrétien, Elisabeth Galopin, Stephane Guilet, Laurent Travers, et al.. GaN nanowires for piezoelectric generators. physica status solidi (RRL) - Rapid Research Letters, Wiley-VCH Verlag, 2014, 8 (5), pp.414-419. 〈10.1002/pssr.201409105〉. 〈hal-01093504〉

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