Formation and properties of PZT-PbO thin heterophase films

The structural, electrophysical and photogalvanic properties of thin Pb(Ti 0,47 Zr 0,53 )O3+xPbO films obtained by the sol-gel process were investigated as a function of PbO concentration. Samples without lead excess showed dependence of the photocurrent direction from the preliminary direction of p...

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Bibliographic Details
Published in:Ferroelectrics 2016-05, Vol.496 (1), p.170-176
Main Authors: Afanasjev, V. P., Chigirev, D. A., Mukhin, N. V., Petrov, A. A.
Format: Article
Language:English
Subjects:
Amplitudes
Columnar structure
Crystallites
Ferroelectric materials
Ferroelectrics
lead oxide
Lead zirconate titanate films
Photocurrent
Photoelectric effect
photogalvanic effect
Sol gel process
Thin films
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Summary:The structural, electrophysical and photogalvanic properties of thin Pb(Ti 0,47 Zr 0,53 )O3+xPbO films obtained by the sol-gel process were investigated as a function of PbO concentration. Samples without lead excess showed dependence of the photocurrent direction from the preliminary direction of polarization in the absence of photoresponse in the unpolarized state. The PZT films with 5-15 mol. % lead excess are characterized by unipolar short-circuit photocurrent. Increasing the concentration of PbO in the solution up to 30 mol. % leads to extinction throughout the thickness of the columnar structure film crystallites and reduction of short-circuit photocurrent amplitude.
ISSN:0015-0193
1563-5112
DOI:10.1080/00150193.2016.1157453