Controllable Synthesis of High-Quality Hexagonal Boron Nitride Films on Ni-B Alloy

Chen, Dewen; Shen, Honglie; Liu, Biao; Wang, Zehui; Liao, Bingjie; Mao, Weibiao; Li, Yufang; Wu, Tianru

doi:10.1007/s11664-023-10433-7

Cited by 3 publications

(1 citation statement)

References 30 publications

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“…Based on earlier studies [17,19,20], we proposed molten Ni-B alloy as the boron source and N 2 as the nitrogen source for multilayered h-BN growth. Here, high-quality h-BN layers were realized on the Ni-B wetting W substrate.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of multilayered h-BN film on the molten Ni–B and the influence of underneath W substrate

Zhu,

Shi,

Ruan

et al. 2024

2D Mater.

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High-quality two-dimensional hexagonal boron nitride (h-BN) film with tens of layers has been used as a universal substrate and capping layer for the van der Waals devices. Various approaches have been carried out for the synthesis of multilayered h-BN. Among them, the metal flux method is reliable in yielding h-BN crystals with high crystalline quality. However, this time- and energy-demanding method hinders its scale application. Herein, inspired by the metal flux method, we reported the time-effective growth of high-quality multilayered h-BN film (ca. 20 nm) on a molten Ni–B layer wetting on W substrate with chemical vapor deposition method. The film exhibits an excellent stacking sequence and a full-width at half maximum of the Raman E2g peak narrow to 9.5 cm−1. Cross-sectional high-resolution transmission electron microscopy and in-situ x-ray diffraction spectroscopy were carried out to investigate the crystal structure evolution of Ni–B layer wetting on W substrate. It is found that the low surface tension caused by the spreading of Ni–B alloy on the W substrate and the presence of the Ni subsurface may be responsible for the formation of multilayered h-BN with excellent crystalline quality. Meanwhile, the W diffusion in Ni–B-based melt can hinder the formation of h-BN under certain growth conditions. The approach demonstrates the feasibility of large-scale growth of multilayered h-BN, paving the way to future applications in van der Waals electronic and optoelectronic devices.

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Section: Introductionmentioning

confidence: 99%

Synthesis of multilayered h-BN film on the molten Ni–B and the influence of underneath W substrate

Zhu,

Shi,

Ruan

et al. 2024

2D Mater.

View full text Add to dashboard Cite

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Van der Waals Multilayered Films: Wafer‐Scale Synthesis and Applications in Electronics and Optoelectronics

Yun,

Ko,

Park

et al. 2024

Adv Funct Materials

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Abstract2D materials possess significant potential across various applications, with physical and chemical properties that can be effectively modulated by their thickness, enabling tailored optimization for specific uses. For instance, 2D monolayers are ideal for transparent and flexible electronics, while 2D multilayers are more suitable for solar cells and high‐speed devices. Although scalable methods for synthesizing large‐area 2D materials and their applications have been developed, most research has focused on monolayers, with comparatively limited efforts directed toward multilayers. This review provides an overview of the emerging field of 2D multilayers, revisiting the analysis of layer‐dependent properties to determine the optimal material thickness for various applications. It introduces representative techniques for synthesizing 2D multilayer films and presents applications where multilayer structures demonstrate superior performance compared to monolayers, particularly in electronics and optoelectronics. The review advocates for the development of synthesis and integration methods for 2D multilayers, calling for a shift in research focus toward these materials to enhance their technological impact and unlock new industrial applications.

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Nucleation and growth mechanism of hexagonal boron nitride on metal borides surfaces: A combined theoretical and experimental study

Guo,

Shi,

et al. 2025

Applied Surface Science

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Controllable Synthesis of High-Quality Hexagonal Boron Nitride Films on Ni-B Alloy

Cited by 3 publications

References 30 publications

Synthesis of multilayered h-BN film on the molten Ni–B and the influence of underneath W substrate

Synthesis of multilayered h-BN film on the molten Ni–B and the influence of underneath W substrate

Van der Waals Multilayered Films: Wafer‐Scale Synthesis and Applications in Electronics and Optoelectronics

Nucleation and growth mechanism of hexagonal boron nitride on metal borides surfaces: A combined theoretical and experimental study

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