Voltage-tuned polarization control via UV light in BiFeO3 thin film on Nb–SrTiO3
Source abstract
Abstract
BiFeO3 thin films were grown on Nb-doped SrTiO3 substrates using radio frequency magnetron sputtering and subsequently annealed to enhance their structural and ferroelectric properties. With piezoresponse force microscopy, with a width of ∼500 nm, thin films were successfully created by controlling polarization through direct current poling. Here, we found a significant reduction in polarization amplitude around 81% when the sample was irradiated under ultraviolet (UV). These results highlight the interplay between poling and UV-induced effects, which can control the ferroelectric states. This study will pave the way for promising applications in optoelectronic devices and non-volatile memory technologies.
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Research context
OpenAlex topics: Multiferroics and related materials · Electronic and Structural Properties of Oxides · Ferroelectric and Piezoelectric Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Physics and Center of Excellence on Advanced Functional Materials, Suranaree University of Technology 1 , Nakhon Ratchasima 30000,
Research Network NANOTEC–SUT on Advanced Nanomaterials and Characterization, Suranaree University of Technology 2 , Nakhon Ratchasima 30000,
Synchrotron Light Research Institute 3 , Nakhon Ratchasima 30000,
Funding
The Program Management Unit for Human Resources and Institutional Development, Research and Innovation · The Science Achievement Scholarship of Thailand SAST
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