کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
821074 | 906740 | 2011 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Nanoscale investigation of ferroelectric properties in electrospun barium titanate/polyvinylidene fluoride composite fibers using piezoresponse force microscopy Nanoscale investigation of ferroelectric properties in electrospun barium titanate/polyvinylidene fluoride composite fibers using piezoresponse force microscopy](/preview/png/821074.png)
Ferroelectric nanostructures have broad applications in nanoscale electronic devices, sensors and actuators. In this study, a two-step electrospinning process was used to fabricate barium titanate (BaTiO3)/polyvinylidene fluoride (PVDF) composite fibers. Microstructure examination showed that BaTiO3 fibers were well-dispersed within the PVDF fiber matrix and aligned along the fiber axis. X-ray diffraction (XRD) study revealed that crystalline phases corresponding to both PVDF and BaTiO3 were found. The domain switching and associated ferro-/piezo-electric properties of the BaTiO3–PVDF fibers were characterized. Polarization–electric field hysteresis loops obtained using piezoresponse force microscopy (PFM) confirmed the polar domain switching behavior of the fibers. Distinct strain-electric field hysteresis loops were also recorded. Hence, the fibers exhibited well-defined piezoelectric and ferroelectric properties. The results show the potential of these nanostructured composite fibers for applications in miniaturized electronic devices and sensors.
Journal: Composites Science and Technology - Volume 71, Issue 11, 28 July 2011, Pages 1435–1440