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Micropatterning of the Ferroelectric Phase in a Poly(vinylidene difluoride) Film by Plasmonic Heating with Gold Nanocages
Author(s) -
Li Jianhua,
Yang Miaoxin,
Sun Xiaojun,
Yang Xuan,
Xue JiaJia,
Zhu Chunlei,
Liu Hong,
Xia Younan
Publication year - 2016
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201605405
Subject(s) - micropatterning , nanocages , ferroelectricity , difluoride , materials science , nanotechnology , plasmon , phase (matter) , chemistry , optoelectronics , inorganic chemistry , organic chemistry , catalysis , dielectric
Polymer thin films with patterned ferroelectric domains are attractive for a broad range of applications, including the fabrication of tactile sensors, infrared detectors, and non‐volatile memories. Herein, we report the use of gold nanocages (AuNCs) as plasmonic nanostructures to induce a ferroelectric–paraelectric phase transition in a poly(vinylidene fluoride) (PVDF) thin film by leveraging its photothermal effect. This technique allows us to generate patterned domains of ferroelectric PVDF within just a few seconds. The incorporation of AuNCs significantly enhances the pyroelectric response of the ferroelectric film under near‐infrared irradiation. We also demonstrate the use of such patterned ferroelectric films for near‐infrared sensing/imaging.