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Persistent photoconductivity in strained epitaxial BiFeO3 thin films
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Bhatnagar, Akash, Kim, Young Heon, Hesse, Dietrich and Alexe, M. (Marin) (2014) Persistent photoconductivity in strained epitaxial BiFeO3 thin films. Nano Letters, Volume 14 (Number 9). pp. 5224-5228. doi:10.1021/nl502183j ISSN 1530-6984.
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Official URL: http://dx.doi.org/10.1021/nl502183j
Abstract
A drastic change in the conductivity of strained BiFeO3 (BFO) films is observed after illuminating them with above-band gap light. This has been termed as persistent photoconductivity. The enhanced conductivity decays exponentially with time. A trapping character of the sub-band levels and their subsequent gradual emptying is proposed as a possible mechanism.
Item Type: | Journal Article | ||||||||
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Subjects: | Q Science > QC Physics | ||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||
Library of Congress Subject Headings (LCSH): | Bismuth compounds, Photoconductivity | ||||||||
Journal or Publication Title: | Nano Letters | ||||||||
Publisher: | American Chemical Society | ||||||||
ISSN: | 1530-6984 | ||||||||
Official Date: | 10 September 2014 | ||||||||
Dates: |
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Volume: | Volume 14 | ||||||||
Number: | Number 9 | ||||||||
Page Range: | pp. 5224-5228 | ||||||||
DOI: | 10.1021/nl502183j | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Date of first compliant deposit: | 28 December 2015 | ||||||||
Date of first compliant Open Access: | 28 December 2015 | ||||||||
Funder: | Deutsche Forschungsgemeinschaft (DFG), International Max Planck Research School for Astronomy and Cosmic Physics (IMPRS) |
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