Li, Q., Wang, M., Bai, Y. et al. (9 more authors) (2022) Two‐inch wafer‐scale exfoliation of hexagonal boron nitride films fabricated by RF‐sputtering. Advanced Functional Materials, 32 (38). 2206094. ISSN 1616-301X
Abstract
A film stripping method that allows for liquid phase exfoliation assisted by spin coating polymethyl methacrylate has been investigated, resulting in a two-inch hexagonal boron nitride (hBN) film to be fully stripped and then transferred. A number of key factors that can influence the stripping and the transferring process of the films grown by sputtering have been systematically analyzed, including different solutions, different concentration of solution and different thickness of films. The morphology and properties of the hBN films before and after stripping have been characterized. The band edge absorption peak of the transferred film is 229 nm and the corresponding optical band gap is 5.50 eV. Such transferred hBN films have been fabricated into transparent resistive switching devices on indium-tin-oxide glass, demonstrating a constant resistance window of ≈102 even under different applied voltages. This work systematically studies the stripping process, characterizes the transferred films, and explores the application in the field of resistance switching, which lay a foundation for the further application of hBN materials in optoelectronic devices.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2022 Wiley-VCH GmbH. |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield) |
Funding Information: | Funder Grant number Engineering and Physical Sciences Research Council EP/P006973/1; EP/W003244/1; EP/T013001/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 12 Jul 2022 07:52 |
Last Modified: | 03 Feb 2023 14:43 |
Status: | Published |
Publisher: | Wiley |
Refereed: | Yes |
Identification Number: | 10.1002/adfm.202206094 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:188988 |