Voltage tunable sensitivity of piezoelectric materials based sensors and actuators

Author

Dahiya, Ravinder S. ; Torre, Bruno ; Cingolani, Roberto ; Sandini, Giulio

Author_Institution

Robot., Brain & Cognitive Sci. Dept., Italian Inst. of Technol., Genoa, Italy

fYear

2009

fDate

26-30 July 2009

Firstpage

670

Lastpage

673

Abstract

This paper presents the results from dynamic measurements of piezoelectric constant d₃₃ using Atomic Force Microscopy. It is found that d₃₃ constant linearly depends on the DC bias voltage applied across the pre-polarized samples of Polyninylidene Fluoride-Trifluoroethylene i.e. P(VDF-TrFE). Thus, the DC voltage can be used to tune the piezoelectric constant and hence the sensitivity of the sensors and actuators using piezoelectric materials.

Keywords

atomic force microscopy; piezoelectric actuators; piezoelectric materials; piezoelectricity; polymers; sensitivity; sensors; DC bias voltage; P(VDF-TrFE); atomic force microscopy; piezoelectric actuators; piezoelectric constant; piezoelectric materials; piezoelectric sensors; polyninylidene fluoride-trifluoroethylene; prepolarized samples; voltage tunable sensitivity; Annealing; Atomic force microscopy; Atomic measurements; Crystallization; Electrodes; Piezoelectric actuators; Piezoelectric materials; Piezoelectric polarization; Polymer films; Voltage; Actuators; Atomic Force Microscopy; PVDF-TrFE; Sensitivity; Sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanotechnology, 2009. IEEE-NANO 2009. 9th IEEE Conference on

Conference_Location

Genoa

ISSN

1944-9399

Print_ISBN

978-1-4244-4832-6

Electronic_ISBN

1944-9399

Type

conf

Filename

5394840