https://doi.org/10.1140/epjs/s11734-026-02443-3
Regular Article
Controllable preparation of large-size, ultrathin boron nitride nanosheets with excellent transparency and flexibility
1
School of Materials, Shenzhen Campus of Sun Yat-sen University, 518107, Shenzhen, China
2
Instrumental Analysis and Research Center, Sun Yat-sen University, 510275, Guangzhou, China
a
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b
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Received:
26
March
2026
Accepted:
2
June
2026
Published online:
10
June
2026
Abstract
Owing to their excellent physical and chemical properties, large-size and ultrathin boron nitride nanosheets exhibit great application potential in numerous fields. However, the scalable fabrication of large-size boron nitride nanosheets remains a key bottleneck hindering their practical application. Herein, a rapid and high-yield strategy based on viscous solvent-assisted high-energy ball milling is developed to exfoliate boron nitride nanosheets, yielding a record-high lateral size of 47.8 μm. The as-prepared ultrathin and large-size nanosheet exhibits excellent optical transparency. Furthermore, when mechanical force is applied to the nanosheets via a manipulator inside a focused ion beam-scanning electron microscope, obvious structural deformation can be observed, and the nanosheets fully recover once the applied force is removed. Therefore, such large-size and ultrathin nanosheets exhibit excellent elasticity. The development and application of large-size ultrathin BNNSs drive two-dimensional material progress and support high-performance composite innovation.
Supplementary Information The online version contains supplementary material available at https://doi.org/10.1140/epjs/s11734-026-02443-3.
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© The Author(s), under exclusive licence to EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2026
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
