title: Micropatterning of the Ferroelectric Phase in a Poly(vinylidene difluoride) Film by Plasmonic Heating with Gold Nanocages.
abstract: 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.
authors.affiliation: The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA.|State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong, 250100, P.R. China.
authors.forename: Jianhua
authors.initials: J
authors.lastname: Li
authors.affiliation: School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
authors.forename: Miaoxin
authors.initials: M
authors.lastname: Yang
authors.affiliation: School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
authors.forename: Xiaojun
authors.initials: X
authors.lastname: Sun
authors.affiliation: The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA.
authors.forename: Xuan
authors.initials: X
authors.lastname: Yang
authors.affiliation: The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA.
authors.forename: JiaJia
authors.initials: J
authors.lastname: Xue
authors.affiliation: The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA.
authors.forename: Chunlei
authors.initials: C
authors.lastname: Zhu
authors.affiliation: State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong, 250100, P.R. China.
authors.forename: Hong
authors.initials: H
authors.lastname: Liu
authors.affiliation: The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA. younan.xia@bme.gatech.edu.|School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, 30332, USA. younan.xia@bme.gatech.edu.
authors.forename: Younan
authors.initials: Y
authors.lastname: Xia
mesh_terms: D004574:Electromagnetic Fields; D006046:Gold / Q000737:chemistry*; D006361:Heating; D053768:Metal Nanoparticles / Q000737:chemistry*; D010316:Particle Size; D055668:Photochemical Processes; D011145:Polyvinyls / Q000737:chemistry*; D013696:Temperature; D005465:Fluorocarbon Polymers
chemical_list: D006046:Gold; D011145:Polyvinyls; C024865:polyvinylidene fluoride; D005465:Fluorocarbon Polymers
keywords: IR imaging; ferroelectricity; nanostructures; phase transition; surface plasmon resonance