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Ferroelectric Lead Zirconate Titanate and Barium Titanate Nanoshell Tubes

Published online by Cambridge University Press:  01 February 2011

Yun Luo ,
Izabela Szafraniak ,
Valanoor Nagarajan ,
Ralf B. Wehrspohn ,
Martin Steinhart ,
Joachim H. Wendorff ,
Nicolai D. Zakharov ,
Ramamoorthy Ramesh  and
Marin Alexe
Yun Luo
Affiliation:
Max Planck Institute of Microstructure Physics, Weinberg 2, D-06120 Halle, Germany
Izabela Szafraniak
Affiliation:
Max Planck Institute of Microstructure Physics, Weinberg 2, D-06120 Halle, Germany
Valanoor Nagarajan
Affiliation:
University of Maryland, College Park, MD 20742, USA
Ralf B. Wehrspohn
Affiliation:
Max Planck Institute of Microstructure Physics, Weinberg 2, D-06120 Halle, Germany
Martin Steinhart
Affiliation:
Max Planck Institute of Microstructure Physics, Weinberg 2, D-06120 Halle, Germany Institute of Physical Chemistry, University of Marburg, Hans-Meerwein-Straβe, D-35032 Marburg, Germany
Joachim H. Wendorff
Affiliation:
Institute of Physical Chemistry, University of Marburg, Hans-Meerwein-Straβe, D-35032 Marburg, Germany
Nicolai D. Zakharov
Affiliation:
Max Planck Institute of Microstructure Physics, Weinberg 2, D-06120 Halle, Germany
Ramamoorthy Ramesh
Affiliation:
University of Maryland, College Park, MD 20742, USA
Marin Alexe
Affiliation:
Max Planck Institute of Microstructure Physics, Weinberg 2, D-06120 Halle, Germany
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Abstract

Wetting of the pore walls of porous templates is a simple and convenient method to prepare nanoshell tubes. Wafer-scale fabrication of ferroelectric lead zirconate titanate and barium titanate nanoshell tubes was accomplished by wetting porous silicon templates with polymeric precursors. The ferro- and piezoelectric properties of an individual ferroelectric nanoshell tube either of PZT or of BaTiO3 were electrically characterized by measuring the local piezoelectric hysteresis. A sharp switching at the coercive voltage of about 2 V was shown from the hysteresis loop. The corresponding effective remnant piezoelectric coefficient is about 90 pm/V. We have also prepared highly ordered arrays of free-standing ferroelectric nanoshell tubes obtained by partial etching of the silicon template. Such materials might be used as building blocks of miniaturized devices and could have a significant impact in the field of nano-electromechanical systems.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 782: Symposium A – Micro- and Nanosystems , 2003 , A9.4
Copyright
Copyright © Materials Research Society 2004

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