Microstructured organic ferroelectric thin film capacitors by solution micromolding

Thomas Lenz, Dong Zhao, George Richardson, Ilias Katsouras, Kamal Asadi, Gunnar Glaßer, Samuel T. Zimmermann, Natalie Stingelin, W. S.Christian Roelofs, Martijn Kemerink, Paul W.M. Blom, Dago M. De Leeuw

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Ferroelectric nanostructures offer a promising route for novel integrated electronic devices such as non-volatile memories. Here we present a facile fabrication route for ferroelectric capacitors comprising a linear array of the ferroelectric random copolymer of vinylidenefluoride and trifluoroethylene (P(VDF-TrFE)) interdigitated with the electrically insulating polymer polyvinyl alcohol (PVA). Micrometer size line gratings of both polymers were fabricated over large area by solution micromolding, a soft lithography method. The binary linear arrays were realized by backfilling with the second polymer. We investigated in detail the device physics of the patterned capacitors. The electrical equivalent circuit is a linear capacitor of PVA in parallel with a ferroelectric capacitor of P(VDF-TrFE). The binary arrays are electrically characterized by both conventional Sawyer-Tower and shunt measurements. The dependence of the remanent polarization on the array topography is explained by numerical simulation of the electric field distribution.

Original languageEnglish
Pages (from-to)2124-2132
Number of pages9
JournalPhysica Status Solidi (A) Applications and Materials Science
Volume212
Issue number10
DOIs
Publication statusPublished - 1 Oct 2015

Keywords

  • ferroelectric materials
  • P(VDF-TrFE)
  • Sawyer-Tower
  • shunt measurements
  • solution micromolding

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Microstructured organic ferroelectric thin film capacitors by solution micromolding'. Together they form a unique fingerprint.

Cite this