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Fabrication and electrical properties of 0.7BiFeO3-0.3PbTiO3 films on stainless steel by the sol-gel method

Published online by Cambridge University Press:  17 April 2012

Chen Zhao ,
Dan Jiang ,
Shundong Bu  and
Jinrong Cheng
Chen Zhao
Affiliation:
School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China
Dan Jiang
Affiliation:
School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China
Shundong Bu
Affiliation:
School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China
Jinrong Cheng
Affiliation:
School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China
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Abstract

Ferroelectric 0.7BiFeO3-0.3PbTiO3 (BFO-PT) films were deposited on stainless steel substrates by the sol-gel method. A thin layer of PbTiO3 (PT) was introduced between the substrates and BFO-PT films in order to decrease the annealing temperature of BFO-PT films. X-ray diffraction analysis reveals that BFO-PT films could be well crystallized into the perovskite structure at about 575 oC. Scanning electron microscope (SEM) images show that BFO-PT thin films have grain size of about 50∼60 nm. Our results indicated BFO-PT films deposited on stainless steel substrates maintained the excellent ferroelectric properties with remnant polarization of about 40∼50 μC/cm2.

Keywords

filmferroelectricdielectric properties
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1449: Symposium BB – Solution Synthesis of Inorganic Films and Nanostructured Materials , 2012 , mrss12-1449-bb06-04
Copyright
Copyright © Materials Research Society 2012

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References

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