Giant flexoelectricity in polyvinylidene fluoride films

Autor:	John Y. Fu, Hyun Heo, Ho Joon Lee, Narayanan Ramachandran, Sankar Thiruvannamalai, Qin Chen, Xiangtong He, Sivapalan Baskaran
Rok vydání:	2011
Předmět:	Condensed Matter::Soft Condensed Matter chemistry.chemical_classification Physics chemistry.chemical_compound chemistry Chemical physics Flexoelectricity General Physics and Astronomy Polymer Elastomer Polyvinylidene fluoride
Zdroj:	Physics Letters A. 375:2082-2084
ISSN:	0375-9601
DOI:	10.1016/j.physleta.2011.04.011
Popis:	Recent studies have shown that giant flexoelectricity may exist in certain elastomers with bent-core molecular structures, which contradicts the previous theoretical estimation that the flexoelectric coupling is small in those materials. In this Letter, we report an analogous phenomenon, i.e., the giant direct flexoelectric effect, observed in a polyvinylidene fluoride (PVDF) film. Our experimental studies indicate that such an enhanced flexoelectric effect might be induced by the interaction between the energy couplings of the apolar and the polar molecular structures of the polymer film under elastic deformation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f6d0309093e4b270ec3c17cb310ad382 https://doi.org/10.1016/j.physleta.2011.04.011 Zobrazit plný text záznamu Full Text from ScienceDirect