Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.polymer.2012.01.058
Title: Self-polarized ferroelectric PVDF homopolymer ultra-thin films derived from Langmuir-Blodgett deposition
Authors: Chen, S.
Li, X.
Yao, K.
Tay, F.E.H. 
Kumar, A.
Zeng, K. 
Keywords: Ferroelectric polymer
Langmuir-Blodgett film
Poly(vinylidene fluoride) (PVDF)
Issue Date: 9-Mar-2012
Citation: Chen, S., Li, X., Yao, K., Tay, F.E.H., Kumar, A., Zeng, K. (2012-03-09). Self-polarized ferroelectric PVDF homopolymer ultra-thin films derived from Langmuir-Blodgett deposition. Polymer 53 (6) : 1404-1408. ScholarBank@NUS Repository. https://doi.org/10.1016/j.polymer.2012.01.058
Abstract: It was found that Langmuir-Blodgett (LB) deposition process led to the direct formation of ferroelectric β phase in poly(vinylidene fluoride) (PVDF) homopolymer ultra-thin films, in which the molecular chains were parallel to the substrates and the dipoles were aligned perpendicular to the substrates. Theoretical analysis and experimental results further showed that the mechanism of forming the β phase and the dipole orientation were attributed to the hydrogen bonds formed between the PVDF molecules and water through the LB deposition. A large local effective piezoelectric coefficient (d zz) of -49.4 pm/V was observed in the self-polarized PVDF LB film. © 2012 Published by Elsevier Ltd.
Source Title: Polymer
URI: http://scholarbank.nus.edu.sg/handle/10635/85620
ISSN: 00323861
DOI: 10.1016/j.polymer.2012.01.058
Appears in Collections:Staff Publications

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