Micropatterning and Integration of Electrospun PVDF Membrane into Microdevice

Iman Aris Fadzallah, Nuur Syahidah Sabran, Nguyen Van Toan, Takahito Ono, Suhana Mohd Said, Mohd Faizul Mohd Sabri

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

This article reports a novel work on the fabrication of microarrays of electrospun Poly(vinylidene fluoride) (PVDF) membrane for MEMS and energy harvesting applications. Micropatterning of PVDF membrane is an essential step in fabrication process in order for the sample to be integrated in microelectromechanical systems. The high β -phase fraction of PVDF membranes was successfully synthesized by one step electrospinning technique. A new fabrication process for micropatterning of electrospun PVDF membrane is being proposed using dry reactive ion etching. Oxygen plasma was chosen as the feeding gas in investigation for high etching rate in PVDF microstructure fabrication process. Micropatterning dimensions of 200/500/ 200μm with the height of over 50μm and etching rate of 2μm /min were achieved in this work. Details of the fabrication process are discussed. High etching rate of patterning process with the selected parameters can be achieved on the electrospun PVDF membranes. This work has demonstrated successful micropatterning and integration of PVDF membrane into MEMS, thus open the possibilities for various application such as for sensors and actuators utilizing polymer membrane. We have validated the capability of the micropatterned device as energy harvester in producing an open circuit voltage density of 1.42 Vm-2 at temperature of 310.15 K and wind speed of 1 ms-1.

Original languageEnglish
Article number9062319
Pages (from-to)438-445
Number of pages8
JournalJournal of Microelectromechanical Systems
Volume29
Issue number3
DOIs
Publication statusPublished - 2020 Jun

Keywords

  • PVDF based energy harvester
  • Poly(vinylidene fluoride)
  • dry reactive ion etching
  • electrospun membrane
  • micropatterning

ASJC Scopus subject areas

  • Mechanical Engineering
  • Electrical and Electronic Engineering

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