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Issue 18, 2019, Issue in Progress
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Controlled synthesis of uniform multilayer hexagonal boron nitride films on Fe2B alloy

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Abstract

Two-dimensional (2D) hexagonal boron nitride (h-BN) is highly appreciated for its excellent insulating performance and absence of dangling bonds, which could be employed to maintain the intrinsic properties of 2D materials. However, controllable synthesis of large scale multilayer h-BN is still very challenging. Here, we demonstrate chemical vapor deposition (CVD) growth of multilayer h-BN by using iron boride (Fe2B) alloy and nitrogen (N2) as precursors. Different from the self-limited growth mechanism of monolayer h-BN on catalytic metal surfaces, with sufficient B source in the bulk, Fe2B alloy promotes the controllable isothermal segregation of multilayer h-BN by reacting with active N atoms on the surface of the substrate. Microscopic and spectroscopic characterizations prove the high uniformity and crystalline quality of h-BN with a highly orientated layered lattice structure. The achievement of large scale multilayer h-BN in this work would facilitate its applications in 2D electronics and optoelectronics in the future.

Graphical abstract: Controlled synthesis of uniform multilayer hexagonal boron nitride films on Fe2B alloy

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Publication details

The article was received on 23 Jan 2019, accepted on 26 Mar 2019 and first published on 01 Apr 2019


Article type: Paper
DOI: 10.1039/C9RA00595A
RSC Adv., 2019,9, 10155-10158
  • Open access: Creative Commons BY license
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    Controlled synthesis of uniform multilayer hexagonal boron nitride films on Fe2B alloy

    Z. Shi, G. Lu, P. Yang, T. Wu, W. Yin, C. Zhang, R. Jiang and X. Xie, RSC Adv., 2019, 9, 10155
    DOI: 10.1039/C9RA00595A

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