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Atomically thin boron nitride (BN) is an important two-dimensional (2D) nanomaterial, with many properties distinct from graphene. In this feature article, these unique properties and associated applications often not possible from graphene…

材料科学 · 物理学 2016-05-05 Lu Hua Li , Ying Chen

Atomically thin boron nitride (BN) nanosheets are important two-dimensional nanomaterials with many unique properties distinct from those of graphene, but the investigation of their mechanical properties still greatly lacks. Here we report…

Although the high impermeability of graphene makes it an excellent barrier to inhibit metal oxidation and corrosion, graphene can form a galvanic cell with the underlying metal that promotes corrosion of the metal in the long term. Boron…

材料科学 · 物理学 2015-03-05 Lu Hua Li , Tan Xing , Ying Chen , Rob Jones

Two-dimensional (2D) hexagonal boron nitride (BN) nanosheets are excellent dielectric substrate for graphene, molybdenum disulfide and many other 2D nanomaterials based electronic and photonic devices. To optimize the performance of these…

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…

Atomically thin boron nitride (BN) nanosheets have many properties desirable for surface enhanced Raman spectroscopy (SERS). BN nanosheets have a strong surface adsorption capability towards airborne hydrocarbon and aromatic molecules. For…

介观与纳米尺度物理 · 物理学 2016-06-24 Qiran Cai , Srikanth Mateti , Kenji Watanabe , Takashi Taniguchi , Shaoming Huang , Ying Chen , Lu Hua Li

Surface enhanced Raman spectroscopy (SERS) is a useful multidisciplinary analytic technique. However, it is still a challenge to produce SERS substrates that are highly sensitive, reproducible, stable, reusable, and scalable. Here, we…

介观与纳米尺度物理 · 物理学 2016-07-14 Qiran Cai , Srikanth Mateti , Wenrong Yang , Rob Jones , Kenji Watanabe , Takashi Taniguchi , Shaoming Huang , Ying Chen , Lu Hua Li

Surface interaction is extremely important to both fundamental research and practical application. Physisorption can induce shape and structural distortion (i.e. conformational changes) in macromolecular and biomolecular adsorbates, but…

Heat management becomes more and more critical, especially in miniaturized modern devices, so the exploration of highly thermally conductive materials with electrical insulation and favorable mechanical properties is of great importance.…

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…

介观与纳米尺度物理 · 物理学 2018-10-17 Himanshu Chakraborty , Santosh Mogurampelly , Vivek K. Yadav , Umesh V. Waghmare , Michael L. Klein

Aiming to improve fabrication protocols for boron nitride and graphene (h-BNG) lateral heterostructures, we studied the growth of h-BNG thin films on platinum and their behavior in an oxygen environment. We employed a surface science…

Atomically thin boron nitride (BN) nanosheets have been found an excellent substrate for noble metal particles enabled surface enhanced Raman spectroscopy (SERS), thanks to their good adsorption of aromatic molecules, high thermal stability…

材料科学 · 物理学 2015-03-13 Qiran Cai , Lu Hua Li , Yuanlie Yu , Yun Liu , Shaoming Huang , Ying Chen , Kenji Watanabe , Takashi Taniguchi

Room temperature growth of two-dimensional van der Waals (2D-vdW) materials is indispensable for state-of-the-art nanotechnology. The low temperature growth supersedes the requirement of elevated growth temperature accompanied with high…

In the wide world of 2D materials, hexagonal boron nitride (hBN) holds a special place due to its excellent characteristics. In addition to its thermal, chemical and mechanical stability, hBN demonstrates high thermal conductivity, low…

Fast-growing electronics industry and future energy storage needs have encouraged the design of rechargeable batteries with higher storage capacities, and longer life times. In this regard, two-dimensional (2D) materials, specifically boron…

应用物理 · 物理学 2018-03-21 Meysam Makaremi , Bohayra Mortazavi , Chandra Veer Singh

Carbon nanosheets are mechanically stable free-standing two-dimensional materials with a thickness of ~1 nm and well defined physical and chemical properties. They are made by radiation induced cross-linking of aromatic self-assembled…

介观与纳米尺度物理 · 物理学 2011-05-31 Christoph T. Nottbohm , Andrey Turchanin , Andre Beyer , Rainer Stosch , Armin Golzhauser

Two-dimensional (2D) materials have garnered significant attention in recent years due to their atomically thin structure and unique electronic and optoelectronic properties. To harness their full potential for applications in…

Using atomistic simulations we investigate the thermodynamical properties of a single atomic layer of hexagonal boron nitride (h-BN). The thermal induced ripples, heat capacity, and thermal lattice expansion of large scale h-BN sheets are…

介观与纳米尺度物理 · 物理学 2015-06-15 Sandeep Kumar Singh , M. Neek-Amal , S. Costamagna , F. M. Peeters

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…

介观与纳米尺度物理 · 物理学 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

N-graphdiyne monolayers, a set of carbon-nitride nanosheets, have been synthesized recently through the polymerization of triazine- and pyrazine-based monomers. Since the two-dimensional nano-structures are mainly composed of light-weight…

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