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Racemic amino acid piezoelectric transducer

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Show simple item record Guerin, Sarah O'Donnell, Joseph Haq, Ehtsham UI McKeown, Cian Silien, Christophe Rhen, Fernando M.F. Soulimane, Tewfik Tofail, Syed A.M. Thompson, Damien 2019-04-04T11:39:05Z 2019-04-04T11:39:05Z 2019
dc.identifier.issn 0031-9007
dc.description peer-reviewed en_US
dc.description.abstract Single crystal L-amino acids can exhibit technologically useful piezoelectric and nonlinear optical properties. Here we predict, using density functional theory, the piezoelectric charge and strain and voltage tensors of the racemic amino acid DL alanine, and use the modeling data to guide the first macroscopic and nanoscopic piezoelectric measurements on DL-alanine single crystals and polycrystalline aggregates. We demonstrate voltage generation of up to 0.8 V from DL-alanine crystal films under simple manual compression, twice as high as other amino acid crystals. Our results suggest that net molecular chirality is not a prerequisite for piezoelectric behavior in organic crystals. The transducer presented herein demonstrates that DL-alanine crystals can be used in applications such as temperature and force measurement in biosensors, data storage in flexible electronic devices, and mechanical actuation in energy harvesters. en_US
dc.language.iso eng en_US
dc.publisher American Physical Society en_US
dc.relation.ispartofseries Physical Reivew Letters;122, 047701
dc.subject crystal-structure en_US
dc.subject single-crystal en_US
dc.subject films en_US
dc.subject lung en_US
dc.title Racemic amino acid piezoelectric transducer en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US 2019-04-04T11:28:35Z
dc.description.version PUBLISHED
dc.identifier.doi 10.1103/PhysRevLett.122.047701
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 2870371
dc.internal.copyrightchecked Yes
dc.identifier.journaltitle Physical Review Letters
dc.description.status peer-reviewed

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