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Browse Journals & Magazines > Applied Physics Letters ...> Volume:86 Issue:2 Help

Self-poled Pb(Zr,Ti)O3 films with improved pyroelectric properties via the use of (La0.8Sr0.2)MnO3/metal substrate heterostructures

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5 Author(s)
Es-Souni, M. ; Institute for Materials and Surface Technology (IMST), University of Applied Sciences of Kiel, Grenzstrasse 3, D-24149, Kiel, Germany ; Kuhnke, M. ; Iakovlev, S. ; Solterbeck, C-H.
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Pb(Zr,Ti)O3 (PZT) thin films were deposited on different substrate heterostructures including platinized silicon, stainless steel and Ni-based alloy foils. A buffer layer of (La0.8Sr0.2)MnO3 (LSMO) between PZT and substrate was used. The pyroelectric coefficients were determined using low frequency sinusoidal temperature waves. It is demonstrated that PZT films deposited on metallic foils exhibit high pyroelectric coefficients of up to 760 μC/Km2 in the unpoled state, whereas the films deposited on platinized substrates were found to have pyroelectric coefficients in the range of 30 μC/Km2. These results are explained in terms of elemental diffusion from the substrate together with stressed states of the films.

Published in:
Applied Physics Letters  (Volume:86 ,  Issue: 2 )

Date of Publication: Jan 2005

Page(s):
022907 - 022907-3
ISSN :
0003-6951
Digital Object Identifier :
10.1063/1.1851610
Product Type:
Journals & Magazines
Date of Current Version :
18 June 2009
Issue Date :
Jan 2005

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