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Title: Fatigue mechanism verified using photovoltaic properties of Pb(Zr0.52Ti0.48)O-3 thin films
Authors: Wu, M
Wei, L
Li, JN
Wang, SL
Li, YQ
Peng, BL 
Huang, HT 
Lou, XJ
Issue Date: 2017
Source: Applied physics letters, 2017, v. 110, no. 13, 133903, p. 133903-1-133903-5
Abstract: The photovoltaic effect and its evolution during electrical fatigue in Pb(Zr0.52Ti0.48)O-3 (PZT) thin films have been investigated. It is found that the photovoltaic effect of the as-grown PZT thin film is highly affected by the asymmetric Schottky barriers, which can be tuned by applying an external electric field. During fatigue processes, both open-circuit voltage (V-oc) and short-circuit current (J(sc)) decrease considerably with the increase of the number of electrical cycles. This phenomenon could be ascribed to the degradation of the interfacial layer between the thin film and the electrode induced by highly energetic charge carriers injected from the electrode during bipolar cycling. Our work sheds light on the physical mechanism of both ferroelectric photovoltaics and polarization fatigue in thin-film ferroelectrics. Published by AIP Publishing.
Publisher: American Institute of Physics
Journal: Applied physics letters 
ISSN: 0003-6951
EISSN: 1077-3118
DOI: 10.1063/1.4979525
Rights: © 2017 Author(s).
This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in M. Wu et al., Appl. Phys. Lett. 110, 133903 (2017) and may be found at
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