%0 Conference Paper
%K thin films
%K nanostructured materials
%K hysteresis
%K etching
%K Ferroelectric materials
%K Parameter estimation
%K Lead compounds
%K Wetting
%K Pore size
%K Electrostatic force microscopy
%K Nanorods
%K Precursors
%K Tubes (components)
%A Y Luo
%A I Szafraniak
%A V Nagarajan
%A R.B Wehrspohn
%A M Steinhart
%A J.H Wendorff
%A N.D Zakharov
%A Ramamoorthy Ramesh
%A M Alexe
%A LaFan D.A
%A Ayon A.A
%A Madou M.J
%A McNie M.E
%B Materials Research Society Symposium - Proceedings
%D 2003
%G eng
%P 415-420
%T Ferroelectric lead zirconate titanate and barium titanate nanoshell tubes
%V 782
%X <p>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.</p>