Please use this identifier to cite or link to this item: https://hdl.handle.net/1822/57353

TitleLayer-by-layer fabrication of highly transparent polymer based piezoelectric transducers
Author(s)Cardoso, Vanessa Fernandes
Marques-Almeida, T.
Rodrigues-Marinho, T.
Minas, Graça
Rebouta, L.
Lanceros-Méndez, S.
Keywordspiezoelectric
transducer
Poly(vinylidenefluoride-co-trifluoroethylene)
transparent conductive oxides
adhesion
transparency
Issue date2018
PublisherIOP Publishing Ltd
JournalMaterials Research Express
Abstract(s)The fabrication of highly transparent piezoelectric transducers is of increasing interest in the scientific and technological community. In this work, polymer based piezoelectric transducers were fabricated by the direct deposition of each layer forming the transducer on the desired substrate, avoiding the use of coupling layers. Transparent conductive oxide (TCO) electrodes were deposited by magnetron sputtering and piezoelectric films based on the copolymer poly(vinylidene fluoride-co-trifluoroethylene) (P(VDF-TrFE)) were deposited by spin-coating. All layers were processed and characterized to obtain a highly transparent piezoelectric P(VDF-TrFE) transducer with a strong adhesion between layers and preserving the piezoelectric response of the copolymer film. Indium tin oxide (ITO), gallium-doped zinc oxide (GZO) and aluminium-doped zinc oxide (AZO) were evaluated, and the best performance was obtained with AZO. The optimized transducer features an optical transmittance higher than 75% in the visible spectral range and a piezoelectric coefficient vertical bar d(33)vertical bar of 34 pC.N-1.
TypeArticle
URIhttps://hdl.handle.net/1822/57353
DOI10.1088/2053-1591/aac682
ISSN2053-1591
Peer-Reviewedyes
AccessOpen access
Appears in Collections:CDF - FCD - Artigos/Papers (with refereeing)

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