Please use this identifier to cite or link to this item: https://doi.org/10.1038/s41467-020-16465-5
Title: Continuously controllable photoconductance in freestanding BiFeO3 by the macroscopic flexoelectric effect
Authors: Guo, R 
You, L
Lin, W 
Abdelsamie, A
Shu, X
Zhou, G 
Chen, S 
Liu, L 
Yan, X 
Wang, J
Chen, J 
Issue Date: 1-Dec-2020
Publisher: Nature Research
Citation: Guo, R, You, L, Lin, W, Abdelsamie, A, Shu, X, Zhou, G, Chen, S, Liu, L, Yan, X, Wang, J, Chen, J (2020-12-01). Continuously controllable photoconductance in freestanding BiFeO3 by the macroscopic flexoelectric effect. Nature Communications 11 (1) : 2571-. ScholarBank@NUS Repository. https://doi.org/10.1038/s41467-020-16465-5
Abstract: © 2020, The Author(s). Flexoelectricity induced by the strain gradient is attracting much attention due to its potential applications in electronic devices. Here, by combining a tunable flexoelectric effect and the ferroelectric photovoltaic effect, we demonstrate the continuous tunability of photoconductance in BiFeO3 films. The BiFeO3 film epitaxially grown on SrTiO3 is transferred to a flexible substrate by dissolving a sacrificing layer. The tunable flexoelectricity is achieved by bending the flexible substrate which induces a nonuniform lattice distortion in BiFeO3 and thus influences the inversion asymmetry of the film. Multilevel conductance is thus realized through the coupling between flexoelectric and ferroelectric photovoltaic effect in freestanding BiFeO3. The strain gradient induced multilevel photoconductance shows very good reproducibility by bending the flexible BiFeO3 device. This control strategy offers an alternative degree of freedom to tailor the physical properties of flexible devices and thus provides a compelling toolbox for flexible materials in a wide range of applications.
Source Title: Nature Communications
URI: https://scholarbank.nus.edu.sg/handle/10635/171686
ISSN: 20411723
DOI: 10.1038/s41467-020-16465-5
Appears in Collections:Elements
Staff Publications

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
2020 Nature communication GUORUI.pdfPublished version1.42 MBAdobe PDF

OPEN

PublishedView/Download

SCOPUSTM   
Citations

44
checked on Sep 28, 2022

Page view(s)

211
checked on Sep 22, 2022

Download(s)

1
checked on Sep 22, 2022

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.