Yang, Ming-Min, Iqbal, Affan, Peters, Jonathan J. P., Sánchez, Ana M. and Alexe, M. (Marin) (2020) Data for Strain-gradient mediated local conduction in strained bismuth ferrite films. [Dataset]

	Microsoft Excel (Data underpinning figures in accompanying article) Source Data_NCOMMS-18-34631.xlsx - Published Version Available under License Creative Commons Attribution 4.0. Download (21Mb)
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Abstract

It has been recently shown that the strain gradient is able to separate the light-excited electron-hole pairs in semiconductors, but how it affects the photoelectric properties of the photo-active materials remains an open question. Here, we demonstrate the critical role of the strain gradient in mediating local photoelectric properties in the strained BiFeO3 thin films by systematically characterizing the local conduction with nanometre lateral resolution in both dark and illuminated conditions. Due to the giant strain gradient manifested at the morphotropic phase boundaries, the associated flexo-photovoltaic effect induces on one side an enhanced photoconduction in the R-phase, and on the other side a negative photoconductivity in the morphotropic T′-phase. This work offers insight and implication of the strain gradient on the electronic properties in both optoelectronic and photovoltaic devices.

Item Type:	Dataset
Subjects:	Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:	Faculty of Science, Engineering and Medicine > Science > Physics
Type of Data:	Experimental data
Library of Congress Subject Headings (LCSH):	Semiconductors, Photoelectric cells, Photovoltaic effect
Publisher:	University of Warwick, Department of Physics
Official Date:	16 March 2020
Dates:	Date Event 16 March 2020 Published 2019 Accepted
Status:	Not Peer Reviewed
Publication Status:	Published
Media of Output (format):	.xsls
Access rights to Published version:	Open Access (Creative Commons)
Copyright Holders:	University of Warwick
Description:	Data is on a single excel (.xsls) document. Each worksheet corresponds to the named figure in the article with each column containing the necessary measurement information.
Date of first compliant deposit:	2 March 2020
Date of first compliant Open Access:	16 March 2020
RIOXX Funder/Project Grant:	Project/Grant ID RIOXX Funder Name Funder ID EP/M022706/1 [EPSRC] Engineering and Physical Sciences Research Council http://dx.doi.org/10.13039/501100000266 EP/P031544/1 [EPSRC] Engineering and Physical Sciences Research Council http://dx.doi.org/10.13039/501100000266 EP/P025803/1 [EPSRC] Engineering and Physical Sciences Research Council http://dx.doi.org/10.13039/501100000266
Related URLs:	Other Related item in WRAP
Contributors:	Contribution Name Contributor ID Depositor Yang, Ming-Min 65822

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