Flexoelectricity in Nanostructures: Theory, Nanofabrication and Characterization
Abstract
The objective of this project is to investigate, theoretically and experimentally, the flexoelectricity at nanometer scale, and explore the feasibility of using flexoelectric micro/nanostructures for novel sensing including seismic, acoustic and IR detections. FE induced effective piezoelectric properties in FE nanostructures could be a few order of magnitudes higher over their conventional bulk materials properties, which will lead to ultrasensitive electromechanical sensors using FE nanostructures. Moreover, flexoelectricity exists in static inhomogeneous deformation. This may mean that electromechanical devices made of FE structures hold the potential of operation over an unprecedented broad bandwidth. The other objective of this research is to understand flexoelectricity of advance flexoelectric (FE) materials in a thermal field where temperature gradient exists. The hypothesis is that when a FE structure is exposed to a thermal field, both direct and converse flexoelectricity can be observed, leading to new electromechanical transduction mechanism. Our recent study on flex electrics suggests that FE can be promising for novel electromechanical transduction because of the favorable scaling effect.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 13, 2017
- Accession Number
- AD1050692
Entities
People
- Fuh-gwo Yuan
- Xiaoning Jiang
Organizations
- North Carolina State University