标题：Design, Fabrication and Characterization of Pressure-Responsive Films Based on The Orientation Dependence of Plasmonic Properties of Ag@Au Nanoplates
作者：Fu, Li-Shun; Wang, Wen-Shou; Xu, Cheng-Yan; Li, Yao; Zhen, Liang
作者机构：[Fu, Li-Shun; Wang, Wen-Shou; Xu, Cheng-Yan; Zhen, Liang] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China.; [Fu, Li-Shun; Wa 更多
通讯作者：Wang, WS;Zhen, L;Wang, WS;Wang, WS;Wang, WS
通讯作者地址：[Wang, WS; Zhen, L]Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China;[Wang, WS]Univ Calif Riverside, Dept Chem, Riverside, CA 92 更多
摘要：A novel pressure-responsive polymer composite film was developed based on Ag@Au composite nanoplates (NPLs) and polyvinylpyrrolidone (PVP) by using Au nanoparticles as concentration reference. The orientation change of Ag@Au NPLs is impelled by the deformation of polymer matrix under pressure, resulting in its localized surface plasmon resonance (LSPR) intensity change of in-plane dipolar peak. The intensity ratio between plasmon peak of Au nanoparticles and in-plane dipolar peak of Ag@Au NPLs relies on the intensity and duration of pressure. By adjusting the viscosity of the polymer, the orientation change of LSPR may respond to a wide range of stresses. This pressure sensitive film can be utilized to record the magnitude and distribution of pressure between two contacting surfaces via optical information.