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Electrostatic Synthesis and Characterization of Pb(ZrxTi1-x)O3 Micro/nano-fibers

Published online by Cambridge University Press:  14 March 2011

Yu Wang ,
Santiago Serrano  and
Jorge J. Santiago-Aviles
Yu Wang
Affiliation:
Department of Electrical Engineering, University of Pennsylvania, Philadelphia, PA 19104
Santiago Serrano
Affiliation:
Department of Electrical Engineering, University of Pennsylvania, Philadelphia, PA 19104
Jorge J. Santiago-Aviles
Affiliation:
Department of Electrical Engineering, University of Pennsylvania, Philadelphia, PA 19104
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Abstract

Pb(Zr0.48Ti0.52)O3 (PZT) micro/nano-fibers and mats were synthesized from alkoxides using electrostatic deposition. The PZT micro/nano-fibers precursor, a mixture of zirconium npropoxide, titanium isopropoxide, and lead 2-ethylhexanoate, was deposited under the following conditions: tip-screen distance=15cm, voltage drop between tip and screen of 15kV. The deposited fibers and mats samples were sintered for half an hour at 400, 500, 600, 700, and 800°C, respectively. Sintered mats were characterized using x-ray diffraction (XRD), sintered fibers were characterized using optical microscope, scanning electron microscopes (SEM), Raman microscope, and scanning probe microscope (SPM). SEM revealed that micro/nano-fibers have diameters varying from a fraction of a micron to around 10 micrometer. XRD and Raman spectra indicated that the precursors begin to transform into intermediate phase Pb2Ti2O6 at 400°C, whose transformation into the perovskite phase starts at 600°C and ends at 800°C. Scanning probes microscope (SPM), operated in voltage-modulated dynamic contact mode, revealed the spontaneous polarization domains, with diameters ranging from 0.1 to 0.5 micron, in microfibers, confirming their piezoelectricity.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 702: Symposium U – Advanced Fibers, Plastics, Laminates and Composites , 2001 , U10.2.1
Copyright
Copyright © Materials Research Society 2002

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