Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.4801982
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dc.titleNanoscale piezoelectric and ferroelectric behaviors of seashell by piezoresponse force microscopy
dc.contributor.authorLi, T.
dc.contributor.authorZeng, K.
dc.date.accessioned2014-06-17T06:28:17Z
dc.date.available2014-06-17T06:28:17Z
dc.date.issued2013-05-14
dc.identifier.citationLi, T., Zeng, K. (2013-05-14). Nanoscale piezoelectric and ferroelectric behaviors of seashell by piezoresponse force microscopy. Journal of Applied Physics 113 (18) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.4801982
dc.identifier.issn00218979
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/60869
dc.description.abstractSeashells, the armor of one of the most ancient species, have demonstrated outstanding mechanical properties such as simultaneous strengthening and toughening. The seashells have also been proven to exhibit piezoelectric and ferroelectric properties, which may contribute to their mechanical behaviors and various functionalities. This work has elaborated in more details of the piezoelectric and ferroelectric behaviors of the nacre by using the DART (Dual-AC Resonance Tracking) and vector-PFM (Piezoresponse Force Microscope), as well as the SS-PFM (Switching Spectroscopy PFM) techniques. By using the vector-PFM technique, the local polarization directions of intracrystalline biopolymers are found to be very close to the direction perpendicular to the platelet surface, and it, therefore, shows strong piezoresponse along this direction. On the other hand, the interlamellar biopolymer shows strong piezoresponse in the direction parallel to the platelet surface. This intrinsic piezoelectric property of the biopolymer may be the basis for sensing and actuating during biomineralization process. Besides the piezoresponse, the locations of various biopolymers are also revealed in-situ by using the PFM technique. The ferroelectric behaviors of nacre have been observed by SS-PFM method. Based on the shapes of the ferroelectric hysteresis loops, it is found that the biopolymers in nacre exhibit the similar behaviors to that of the polyvinylidene fluoride (PVDF) based co- or ter-polymers for energy storage applications. © 2013 AIP Publishing LLC.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1063/1.4801982
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentMECHANICAL ENGINEERING
dc.description.doi10.1063/1.4801982
dc.description.sourcetitleJournal of Applied Physics
dc.description.volume113
dc.description.issue18
dc.description.page-
dc.description.codenJAPIA
dc.identifier.isiut000319294100108
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