Liquid-based electrostatic energy harvester using rotational motion of ferrofluid droplets

Author

Kim, D. ; Yu, S. ; Kang, B.-G. ; Yun, K.-S.

Author_Institution

Dept. of Electron. Eng., Sogang Univ., Seoul, South Korea

fYear

2015

fDate

21-25 June 2015

Firstpage

59

Lastpage

61

Abstract

We propose a liquid-based electrostatic energy harvester that uses ferrofluid droplets. The proposed device consists of top and bottom plates with conducting electrodes coated with a solid dielectric layer, a conducting liquid, and oil-based ferrofluid droplets. Using an external magnetic field, we experimentally verified the surfaces on which the ferrofluid actuates well. In addition, we investigated the rotational motion of ferrofluid droplets on Parylene C surface by adding surfactant of conducting liquid.

Keywords

drops; electrostatics; energy harvesting; magnetic fluids; surfactants; Parylene C surface; conducting electrodes; conducting liquid; external magnetic field; ferrofluid droplets; liquid-based electrostatic energy harvester; oil-based ferrofluid droplets; rotational motion; solid dielectric layer; surfactant; Capacitance; Electrodes; Electrostatics; Energy harvesting; Magnetic liquids; Plasmas; Surface treatment; Energy harvesting; electrostatic; ferrofluid; liquid dielectric;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS), 2015 Transducers - 2015 18th International Conference on

Conference_Location

Anchorage, AK

Type

conf

DOI

10.1109/TRANSDUCERS.2015.7180860

Filename

7180860