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Two-dimensional (2D) crystals, such as graphene, hexagonal boron nitride and transitional metal dichalcogenides, have attracted tremendous amount of attention over the past decade due to their extraordinary thermal, electrical and optical…

Materials Science · Physics 2017-02-16 Y. Zhao , Z. Wan , U. Hetmaniuk , M. P. Anantram

High pressure Raman experiments on Boron Nitride multi-walled nanotubes show that the intensity of the vibrational mode at ~ 1367 cm-1 vanishes at ~ 12 GPa and it does not recover under decompression. In comparison, the high pressure Raman…

Materials Science · Physics 2007-05-23 Surajit Saha , D. V. S. Muthu , D. Golberg , C. Tang , C. Zhi , Y. Bando , A. K. Sood

This study investigates into the adsorption sensing capabilities of single-walled (5,5) boron nitride nanotubes (BNNTs) towards environmental pollutant gas molecules, including CH2, SO2, NH3, H2Se, CO2 and CS2. Employing a linear…

Computational Physics · Physics 2025-11-07 Chaithanya Purushottam Bhat , Joy Mukherjee , Antara Banerjee , Debashis Bandyopadhyay

Graphene and other two-dimensional (2D) materials have emerged as promising materials for broadband and ultrafast photodetection and optical modulation. These optoelectronic capabilities can augment complementary metal-oxide-semiconductor…

Hexagonal boron nitride (hBN) is the supporting substrate of choice for two-dimensional material devices because it is atomically flat and chemically inert. However, due to the small size of mechanically exfoliated hBN flakes, electronic…

Hexagonal boron nitride (hBN) is a wide band gap material with both strong excitonic light emission in the ultraviolet and strong exciton-phonon coupling. Luminescence experiments performed on the recently synthesized monolayer form (m-hBN)…

Materials Science · Physics 2023-02-28 Pierre Lechifflart , Fulvio Paleari , Davide Sangalli , Claudio Attaccalite

Monolayer-thick hexagonal boron nitride (h-BN) is grown on graphene on SiC(0001), by exposure of the graphene to borazine, (BH)3(NH)3, at 1100 C. The h-BN films form ~2-micrometer size grains with a preferred orientation of 30 degrees…

Mesoscale and Nanoscale Physics · Physics 2018-08-15 Patrick C. Mende , Jun Li , Randall M. Feenstra

The production of high-quality hexagonal boron nitride (h-BN) is essential for the ultimate performance of two-dimensional (2D) materials-based devices, since it is the key 2D encapsulation material. Here, a decisive guideline is reported…

Materials Science · Physics 2022-10-14 Adrian Hemmi , Ari Paavo Seitsonen , Thomas Greber , Huanyao Cun

Hexagonal boron nitride (hBN) is an important 2D material for van der Waals heterostructures, single photon emitters, and infrared nanophotonics. The optical characterization of mono- and few-layer samples of hBN however remains a challenge…

Insulating hexagonal boron nitride (hBN) films with precisely controlled thickness are ideal dielectric components to modulate various interfaces in electronic devices. To achieve this, high-quality hBN with controlled atomic configurations…

The conversion of waste carbon dioxide (CO2) gas into valuable products and fuels through an electrocatalytic CO2 reduction reaction (CO2RR) is a promising approach. The sluggish kinetics of the CO2RR require the development of novel…

Materials Science · Physics 2024-04-16 Lokesh Yadav , Srimanta Pakhira

We examine the electronic structure of recently fabricated in-plane heterojunctions of zigzag graphene nanoribbons embedded in hexagonal boron nitride. We focus on hitherto unexplored interface configurations in which both edges of the…

Mesoscale and Nanoscale Physics · Physics 2024-06-03 Michele Pizzochero , Nikita V. Tepliakov , Johannes Lischner , Arash A. Mostofi , Efthimios Kaxiras

Monolayer of hexagonal boron nitride (h-BN), commonly known as "white graphene" is a promising wide bandgap semiconducting material for deep-ultaviolet optoelectronic devices. In this report, the light absorption of a single layer hexagonal…

Mesoscale and Nanoscale Physics · Physics 2011-09-26 Aniruddha Konar , Raj Jana , Tian Fang , Guowang Li , William O'Brien , Debdeep Jena

We report on the fabrication and electrical characterization of both single layer graphene micron-sized devices and nanoribbons on a hexagonal boron nitride substrate. We show that the micron-sized devices have significantly higher mobility…

Mesoscale and Nanoscale Physics · Physics 2013-02-06 Dominik Bischoff , Tobias Krähenmann , Susanne Dröscher , Michelle A. Gruner , Clément Barraud , Thomas Ihn , Klaus Ensslin

The recent progress in the field of hydrogen storage in carbon and boron nitride nanostructures has been summarized. Carbon and boron nitride nanostructures are considered advantageous in this prospect due to their lightweight and high…

Applied Physics · Physics 2021-07-29 Y. T. Singh , B. Chettri , A. Banik , K. O. Obodo , D. P. Rai

Improving the film quality in the synthesis of large-area hexagonal boron nitride films (h-BN) for two-dimensional material devices remains a great challenge. The measurement of electrical breakdown dielectric strength (EBD) is one of the…

Materials Science · Physics 2017-01-04 Yoshiaki Hattori , Takashi Taniguchi , Kenji Watanabe , Kosuke Nagashio

Hexagonal boron nitride (hBN) regains interest as a strategic component in graphene engineering and in van der Waals heterostructures built with two dimensional materials. It is crucial then, to handle reliable characterization techniques…

Materials Science · Physics 2016-10-24 Leonard Schue , Ingrid Stenger , Frederic Fossard , Annick Loiseau , Julien Barjon

Two dimensional materials are an emerging class of materials which is transforming the present day research activity on a phenomenal scale. Hexagonal boron nitride is a wide band gap 2D material which is an excellent substrate for graphene…

Materials Science · Physics 2020-02-18 Nilanjan Basu , Alapan Dutta , Ranveer Singh , Tapobrata Som , Jayeeta Lahiri

The current rechargeable battery technologies have a failure in their performance at high pressure and temperature. In this article, we have brought theoretical insights on using boron nitride flakes as a protecting layer for a lithium-ion…

Applied Physics · Physics 2021-02-15 Narjes Kheirabadi , Azizollah Shafiekhani

Van der Waals materials are offering intriguing opportunities as building blocks for advanced quantum information technologies and integrated quantum photonic systems. Critical to their development, is robust and high quality light-matter…

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