Surface etching and edge control of hexagonal boron nitride assisted by triangular Sn nanoplates

Hsin, Yi; Solís‐Fernández, Pablo; Hibino, Hiroki; Ago, Hiroki

doi:10.1039/d2na00479h

Cited by 1 publication

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“…The number of layers was calculated by the thickness of each layer from the SiO 2 /Si surface. The layers comprised 1 to 4 hBN layers, and the thickness of each layer was estimated to be 0.4 nm (Figure h), which agrees with the monolayer thickness of hBN. − …”

Section: Resultssupporting

confidence: 69%

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Large-Area Synthesis and Fabrication of Few-Layer hBN/Monolayer RGO Heterostructures for Enhanced Contact Surface Potential

Sengottaiyan,

Hara,

Nagata

et al. 2024

ACS Omega

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Hexagonal boron nitride (hBN) has a property similar to that of graphene, and it has become one of the most popular materials due to its flexible physical and chemical properties for a variety of applications, especially in nanoelectronics. Enhanced properties of hBN-based heterostructures are crucial for future electronic devices. In this work, a sheet-like hBN crystal was synthesized and transferred onto SiO 2 /Si substrate and reduced graphene oxide (RGO)/SiO 2 /Si substrate. Accordingly, the hBN and hBN/RGO films are investigated by optical microscopy, X-ray diffraction, high-resolution transmission electron microscopy, Raman spectroscopy, and atomic force microscopy. The thickness of a single hBN layer is approximately 0.4 nm. A few layers of hBN stacked in large areas are mostly observed in both hBN and the hBN/RGO films. By using Kelvin probe force microscopy, it was found that the hBN/RGO heterostructure has a contact surface potential higher than that of the hBN layer. The large-scale synthesis and fabrication of hBN/RGO films could be extended to fabricate other van der Waals heterostructures.

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Section: Resultssupporting

confidence: 69%

“…The layers comprised 1 to 4 hBN layers, and the thickness of each layer was estimated to be 0.4 nm ( Figure 7 h), which agrees with the monolayer thickness of hBN. 58 − 60 …”

Section: Resultsmentioning

confidence: 99%

Large-Area Synthesis and Fabrication of Few-Layer hBN/Monolayer RGO Heterostructures for Enhanced Contact Surface Potential

Sengottaiyan,

Hara,

Nagata

et al. 2024

ACS Omega

View full text Add to dashboard Cite

show abstract

Surface etching and edge control of hexagonal boron nitride assisted by triangular Sn nanoplates

Abstract: Hexagonal boron nitride (hBN) is an ideal insulating substrate and template for other two-dimensional (2D) materials. The combination of hBN and 2D materials of group IV atoms, such as graphene,...

Cited by 1 publication

References 38 publications

Large-Area Synthesis and Fabrication of Few-Layer hBN/Monolayer RGO Heterostructures for Enhanced Contact Surface Potential

Large-Area Synthesis and Fabrication of Few-Layer hBN/Monolayer RGO Heterostructures for Enhanced Contact Surface Potential

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