Nano-Scale Characterization of a Piezoelectric Polymer (Polyvinylidene Difluoride, PVDF)

Sensors

Hyungoo Lee¹  Rodrigo Cooper¹  Ke Wang² 

[1] Department of Mechanical Engineering, Texas A&M University, College Station, Texas 77843-3123, USA; E-Mails:;Department of Physics, Texas A&M University, College Station, Texas 77843-3123, USA; E-Mail:

关键词: Polyvinylidene difluoride (PVDF);    piezoelectricity;    ferroelectricity;    conductivity;    atomic force microscope (AFM);   

DOI  :  10.3390/s8117359

来源: mdpi

【 摘 要 】

The polymer polyvinylidene difluoride (PVDF) has unique piezoelectric properties favorable for Micro-Electro-Mechanical Systems (MEMS) and Nano-Electro-Mechanical Systems (NEMS) applications. In the present research, we conducted nanometer-length scale characterization of this material using several high-resolution techniques. Specifically, we used an atomic force microscope (AFM) to study the nano-and microstructures of the PVDF under stress and to measure their nanoscale conductivity and piezoelectricity. We found that the surface morphology, electronic structure, and microstructure are profoundly affected under electrical potential. Such a behavior is important for the properties and performance of MEMS and NEMS.

【 授权许可】

CC BY   
© 2008 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.