Microstructured organic ferroelectric thin film capacitors by solution micromolding

Autor: Lenz, T., Zhao, D., Richardson, G., Katsouras, I., Asadi, K., Glaßer, G., Zimmerman, S.T., Stingeling, N., Roelofs, C., Kemerink, M., Blom, P.W.M., de Leeuw, D.M.
Přispěvatelé: Supramolecular Polymer Chemistry, Molecular Materials and Nanosystems, Applied Physics and Science Education
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Physica Status Solidi A, 10, 212, 2124-2132
Physica Status Solidi A : Applications and material science, 212(10), 2124-2132. Wiley-VCH Verlag
ISSN: 1862-6300
Popis: 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. Funding Agencies|Max Planck Institute for Polymer Research; KAU [71-100-35-HiCi]; Alexander von Humboldt Foundation; Federal Ministry of Education and Research, Germany; Graduate School Materials Science in Mainz
Databáze: OpenAIRE
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