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The corrosion of metallic surfaces poses significant challenges across industries such as petroleum, energy, and biomedical sectors, leading to structural degradation, safety risks, and substantial maintenance costs. Traditional organic and…

Efficient nanophotonic devices are essential for applications in quantum networking, optical information processing, sensing, and nonlinear optics. Extensive research efforts have focused on integrating two-dimensional (2D) materials into…

Hexagonal boron nitride (h-BN) is unique among two-dimensional materials, with a large band gap (~6 eV) and high thermal conductivity (>400 W/m/K), second only to diamond among electrical insulators. Most electronic studies to date have…

Surface enhanced Raman spectroscopy (SERS) is a precise and non-invasive analytical technique that is widely used in chemical analysis, environmental protection, food processing, pharmaceutics, and diagnostic biology. However, it is still a…

Boron nitride (BN) has been explored these days because of its extraordinary optical, chemical and mechanical properties. BN is sensitive to its crystal structure that slight change in lattice parameters enormously change its properties.…

Materials Science · Physics 2019-10-01 Bikramjeet Singh , Kulwinder Singh , Manjeet Kumar , Akshay Kumar

Hexagonal boron nitride is widely used as a substrate for two-dimensional materials in both electronic and photonic devices. Here, we demonstrate that two-dimensional hexagonal boron nitride is also an ideal substrate for one-dimensional…

Mesoscale and Nanoscale Physics · Physics 2021-01-01 N. Fang , K. Otsuka , A. Ishii , T. Taniguchi , K. Watanabe , K. Nagashio , Y. K. Kato

Amorphous boron nitride (\textrm{$\alpha$}-BN) is a promising ultrathin barrier for nanoelectronics, yet the atomistic mechanisms governing its chemical stability remain poorly understood. Here, we investigate the structure-property…

We find, with the use of first-principles calculations, that a single-atom-thick boron-nitride (BN) sheet exhibits an unusual nonlinear electromechanical effect: it becomes macroscopically polarized when bent out-of-plane. The direction of…

Materials Science · Physics 2008-10-13 Ivan Naumov , Alexander M. Bratkovsky , V. Ranjan

We propose a model for nanoscale supercapacitor consisting of two-dimensional insulating BN layers placed between two commensurate and metallic graphene layers. First-principles Density Functional calculations of structure optimized total…

Mesoscale and Nanoscale Physics · Physics 2013-03-05 V. Ongun Özçelik , C. Ataca , S. Ciraci

Hexagonal boron nitride (BN) is widely used as a substrate and gate insulator for two-dimensional (2D) electronic devices. The studies on insulating properties and electrical reliability of BN itself, however, are quite limited. Here, we…

Materials Science · Physics 2015-10-08 Y. Hattori , K. Watanabe , T. Taniguchi , K. Nagashio

We describe the identification of single- and few- layer boron nitride. Its optical contrast is much smaller than that of graphene but even monolayers are discernable by optimizing viewing conditions. Raman spectroscopy can be used to…

Mesoscale and Nanoscale Physics · Physics 2011-04-08 R. V. Gorbachev , I. Riaz , R. R. Nair , R. Jalil , L. Britnell , B. D. Belle , E. W. Hill , K. S. Novoselov , K. Watanabe , T. Taniguchi , A. K. Geim , P. Blake

We numerically investigate the impact of boron nitride (BN) domains on the transport properties of graphene nanoribbons with lengths ranging from a few to several hundreds of nanometers and lateral size up to 4 nm. By varying the size and…

Mesoscale and Nanoscale Physics · Physics 2012-10-29 Alejandro Lopez-Bezanilla , Stephan Roche

We propose a model for planar nanoscale dielectric capacitor consisting of a single layer, insulating hexagonal boron nitride (BN) stripe placed between two metallic graphene stripes, all forming commensurately a single atomic plane.…

Mesoscale and Nanoscale Physics · Physics 2015-06-02 V. Ongun Özçelik , S. Ciraci

The search for new materials is a very intense task in many technological areas. In 2015, a new variant of graphene was proposed, the pentagraphene, which was followed by the propose of a pentagonal boron nitride structure called…

Materials Science · Physics 2021-01-25 M. A. L. Dantas , N. F. Frazão , David L. Azevedo , Jonas R. F. Lima

Hexagonal borocarbonitrides (BCN) are a class of 2D materials, which display excellent catalytic activity for water splitting. Here, we report analysis of thermal stability, phonons and thermal conductivity of BCN monolayers over a wide…

Mesoscale and Nanoscale Physics · Physics 2018-10-17 Himanshu Chakraborty , Santosh Mogurampelly , Vivek K. Yadav , Umesh V. Waghmare , Michael L. Klein

Two-dimensional (2D) transition metal dichalcogenides (TMDCs) are the subject of intense investigation for applications in optics, electronics, catalysis, and energy storage. Their optical and electronic properties can be significantly…

Hexagonal boron nitride (hBN) is an emerging two dimensional material for quantum photonics owing to its large bandgap and hyperbolic properties. Here we report a broad range of multicolor room temperature single photon emissions across the…

Recently, two-dimensional nanostructures consisting of alternating graphene and boron nitride (BN) domains have been synthesized. These systems possess interesting electronic and mechanical properties, with potential applications in…

Mesoscale and Nanoscale Physics · Physics 2015-06-16 Yan Li , Riccardo Mazzarello

Atomically thin two-dimensional (2D) hexagonal boron nitride (hBN) has emerged as an essential material for the encapsulation layer in van der Waals heterostructures and efficient deep ultra-violet optoelectronics. This is primarily due to…

Applied Physics · Physics 2024-09-16 Suk Hyun Kim , Kyeong Ho Park , Young Gie Lee , Seong Jun Kang , Yongsup Park , Young Duck Kim

A portion of the electromagnetic wave spectrum between $\sim 0.1$ and $\sim 10$ terahertz (THz) suffers from the lack of powerful, effective, easy-to-use and inexpensive emitters, detectors and mixers. We propose a multilayer graphene --…

Mesoscale and Nanoscale Physics · Physics 2015-06-04 S. A. Mikhailov