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Flexible active-matrix cells with selectively poled bifunctional polymer-ceramic nanocomposite for pressure and temperature sensing skin

J. Appl. Phys. 106, 034503 (2009); doi:10.1063/1.3191677

Published 11 August 2009

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Ingrid Graz,1 Markus Krause,2 Simona Bauer-Gogonea,2 Siegfried Bauer,2 Stephanie P. Lacour,1 Bernd Ploss,3 Martin Zirkl,4 Barbara Stadlober,4 and Sigurd Wagner5
1Department of Engineering, Nanoscience Centre, University of Cambridge, 11 J J Thomson Ave., Cambridge CB30FF, United Kingdom
2Department of Soft Matter Physics, Johannes Kepler University, Altenberger Str. 69, A-4040 Linz, Austria
3Department of SciTec, University of Applied Sciences, Carl-Zeiss-Promenade 2, 07745 Jena, Germany
4Institute of Nanostructured Materials and Photonics, Joanneum Research, Franz-Pichler-Str. 30, 8160 Weiz, Austria
5Department of Electrical Engineering, Princeton University, Engineering Quadrangle, Olden Street, Princeton, New Jersey 08544, USA
A monolithically integrated bifunctional frontplane is introduced to large area electronics. The bifunctional frontplane element is based on a composite foil of piezoelectric ceramic lead titanate nanoparticles embedded in a ferroelectric poly(vinylidene fluoride trifluoroethylene) polymer matrix. Bifunctionality to pressure and temperature changes is achieved by a sequential, area selective two-step poling process, where the polarization directions in the nanoparticles and the ferroelectric polymer are adjusted independently. Thereby, sensor elements that are only piezoelectric or only pyroelectric are achieved. The frontplane foil is overlaid on a thin-film transistor backplane. Our work constitutes a step toward multifunctional frontplanes for large area electronic surfaces. ©2009 American Institute of Physics
History: Received 14 May 2009; accepted 4 July 2009; published 11 August 2009
Permalink: http://link.aip.org/link/?JAPIAU/106/034503/1
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KEYWORDS and PACS

Keywords
PACS
  • 77.65.-j
    Piezoelectricity and electromechanical effects
  • 77.84.Dy
    Dielectric, piezoelectric, and ferroelectric niobates, titanates, tantalates, PZT ceramics, etc
  • 77.84.Jd
    Dielectric, piezoelectric, and ferroelectric polymers; organic compounds
  • 77.22.Ej
    Dielectric polarization and depolarization
  • 77.84.Lf
    Dielectric, piezoelectric, and ferroelectric composite materials
  • 07.07.Df
    Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing
  • YEAR: 2009

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PUBLICATION DATA

ISSN:
0021-8979 (print)   1089-7550 (online)
Publisher:
AIP is a member of CrossRef AIP

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