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. 2015 Sep 29;10:374. doi: 10.1186/s11671-015-1077-y

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© Liu et al. 2015

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 4 — LSV curves of a pristine Fe₂O₃ electrode with varying deposition time, b pristine Fe₂O₃ and Fe₂O₃-Au electrodes with different Au sputtering time, and c pristine Fe₂O₃ and modified Fe₂O₃. d Photocurrent responses of pristine Fe₂O₃ and modified Fe₂O₃ at an applied potential of 0.4 V. Electrolyte, 1 M KOH solution, illumination: a 300 W Xe lamp coupled with an AM 1.5 filter