Micropatterning of the Ferroelectric Phase in a Poly(vinylidene difluoride) Film by Plasmonic Heating with Gold Nanocages
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- 作者：Jianhua Li ; Miaoxin Yang ; Xiaojun Sun ; Dr. Xuan Yang ; Dr. JiaJia Xue ; Dr. Chunlei Zhu ; Prof. Hong Liu and Prof. Younan Xia
- 刊名：Angewandte Chemie
- 出版年：2016
- 出版时间：October 24, 2016
- 年：2016
- 卷：128
- 期：44
- 页码：14032-14036
- 全文大小：2869K
- ISSN：1521-3757
文摘
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.