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Effect of seed layer with low lead content on electrical properties of PZT thin films

Published online by Cambridge University Press:  02 May 2017

Liubov Delimova Open the ORCID record for Liubov Delimova [Opens in a new window] ,
Ekaterina Guschina ,
Nina Zaitseva ,
Sergey Pavlov ,
Dmitry Seregin ,
Konstantin Vorotilov  and
Alexander Sigov
Liubov Delimova*
Affiliation:
Division of Solid State Electronics, Ioffe Institute, Saint-Petersburg 194021, Russian Federation
Ekaterina Guschina
Affiliation:
Division of Solid State Physics, Ioffe Institute, Saint-Petersburg 194021, Russian Federation
Nina Zaitseva
Affiliation:
Division of Physics of Dielectric and Semiconductors, Ioffe Institute, Saint-Petersburg 194021, Russian Federation
Sergey Pavlov
Affiliation:
Department of Diagnostic of Materials and Structures of SSE, Ioffe Institute, Saint-Petersburg 194021, Russian Federation
Dmitry Seregin
Affiliation:
SEC “Technological Center,”Moscow Technological University (MIREA), Moscow 119454, Russian Federation
Konstantin Vorotilov
Affiliation:
SEC “Technological Center,”Moscow Technological University (MIREA), Moscow 119454, Russian Federation
Alexander Sigov
Affiliation:
SEC “Technological Center,”Moscow Technological University (MIREA), Moscow 119454, Russian Federation
*
a)Address all correspondence to this author. e-mail: ladel@mail.ioffe.ru
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Abstract

Two-step crystallization process based on a low-Pb-content seed layer is proposed to form PZT films by the chemical solution deposition. The first crystallization step was performed after the deposition from precursor solutions with 0 and 5 wt% Pb excess, which provides a low nucleation rate and the strong perovskite (111) orientation. The bulk film was obtained from solutions with a 30 wt% Pb excess, which ensures a high growth rate and eliminates formation of pyrochlore residuals. Some films with a fixed Pb excess were prepared for comparison. It is shown that the low-Pb-content seed layer can sufficiently enhance the texture of perovskite (111) grains thus providing the highest polarization magnitudes as compared to films prepared with the fixed Pb content. The lead content and the crystallization of the seed layer are found to affect the grain-boundary conduction, which, in turn, influences the polarization dependence of transient currents.

Keywords

PZTCSD techniqueseed layercrystallization
Type
Invited Feature Papers
Information
Journal of Materials Research , Volume 32 , Issue 9 , 15 May 2017 , pp. 1618 - 1627
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Copyright
Copyright © Materials Research Society 2017 

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Footnotes

Contributing Editor: Paul Muralt

This paper has been selected as an Invited Feature Paper.

References

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