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Incorporation of Boron Atoms on Graphene Grown by …

Boron-doped graphene has also been studied for applications in other technological fields . In fact, boron-doped graphene has been proposed as an active electrocatalyst for oxygen reduction reaction in fuel cells [9, 10], as a back electrode in CdTe solar cell , and as support for platinum catalyst . For these last two applications, the boron ...

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Graphene on hexagonal boron nitride - IOPscience

2014-7-4 · Hexagonal boron nitride has emerged as a promising substrate for graphene devices as it is insulating, atomically flat and provides a clean charge environment for the graphene. Additionally, the interaction between graphene and boron nitride provides a path for the study of new physical phenomena not present in bare graphene devices.

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Direct growth of large-area graphene and boron …

Graphene/hexagonal boron nitride (h-BN) vertical heterostructures have recently revealed unusual physical properties and new phenomena, such as commensurate-incommensurate transition and fractional quantum hall states featured with Hofstadter's butterfly. Graphene-based devices on h …

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Graphene on hexagonal boron nitride - IOPscience

2014-7-4 · Hexagonal boron nitride has emerged as a promising substrate for graphene devices as it is insulating, atomically flat and provides a clean charge environment for the graphene. Additionally, the interaction between graphene and boron nitride provides a path for the study of new physical phenomena not present in bare graphene devices.

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Publications « Jarillo-Herrero Group

Scanning tunnelling microscopy and spectroscopy of ultra-flat graphene on hexagonal boron nitride Jiamin Xue, Javier Sanchez-Yamagishi, Danny Bulmash, Philippe Jacquod, Aparna Deshpande, K. Watanabe, T. Taniguchi, Pablo Jarillo-Herrero & Brian J. LeRoy Nature Materials 10, 282-285 (2011) 2010

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(PDF) Photo-induced Doping in Graphene/Boron …

We demonstrate that this photo-induced doping maintains the high carrier mobility of the graphene-boron nitride (G/BN) heterostructure, which resembles the modulation doping technique used in ...

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Synthesis of borophenes: Anisotropic, two …

Although bulk allotropes of carbon and boron differ greatly, small clusters of these elements show remarkable similarities. Boron analogs of two-dimensional carbon allotropes such as graphene have been predicted. Now Mannix et al. report the formation of two-dimensional boron by depositing the elemental boron onto a silver surface under ultrahigh-vacuum conditions (see the Perspective by Sachdev).

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Synthesis of borophenes: Anisotropic, two …

Although bulk allotropes of carbon and boron differ greatly, small clusters of these elements show remarkable similarities. Boron analogs of two-dimensional carbon allotropes such as graphene have been predicted. Now Mannix et al. report the formation of two-dimensional boron by depositing the elemental boron onto a silver surface under ultrahigh-vacuum conditions (see the Perspective by Sachdev).

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Synthesis of Boron‐Doped Graphene by Supercritical …

Doping of heteroatoms on graphene networks is an efficient way of modifying both, chemical and electrochemical properties of graphene. Here, the preparation of boron doped graphene was achieved by supercritical fluid processing using sodium tetraborate as a boron source.

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Graphene on hexagonal boron nitride - IOPscience

2014-7-4 · Hexagonal boron nitride has emerged as a promising substrate for graphene devices as it is insulating, atomically flat and provides a clean charge environment for the graphene. Additionally, the interaction between graphene and boron nitride provides a path for the study of new physical phenomena not present in bare graphene devices.

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Graphene on hexagonal boron nitride - IOPscience

2014-7-4 · Hexagonal boron nitride has emerged as a promising substrate for graphene devices as it is insulating, atomically flat and provides a clean charge environment for the graphene. Additionally, the interaction between graphene and boron nitride provides a path for the study of new physical phenomena not present in bare graphene devices.

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Heteroepitaxial Growth of Two-Dimensional …

A common method for creating a thin single-crystal layer of a semiconductor for use in an electronic device is heteroepitaxy—growing the layer on the face of a single crystal of a different material that acts as a template for assembly. Liu et al. (p. [163][1]) now describe a similar process in which the edge of a graphene layer that was grown on a copper surface directs the assembly of a ...

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Ultrasensitive gas detection of large-area boron …

The gas-sensing performance of graphene could be remarkably enhanced by incorporating dopants into its lattice based on theoretical calculations. However, to date, experimental progress on boron-doped graphene (BG) is still very scarce. Here, we achieved the controlled growth of large-area, high-crystallinity BG sheets and shed light on their electronic features associated with boron dopants ...

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Synthesis and Applications of Semiconducting Graphene

Influence of codoping of graphene with two or more atoms is also observed in different studies. For example, another experiment showed that an electrode based on B and N codoped graphene resulted in capacitance way higher compared to counterpart electrodes of pristine graphene or only boron-doped graphene or only nitrogen-doped graphene.

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MIT researchers use graphene and boron nitride to …

2020-11-28 · Isobe looked for ways to break graphene’s inversion and induce an asymmetric flow of electrons in response to incoming energy. Looking through the literature, he found that others had experimented with graphene by placing it atop a layer of boron nitride, a similar honeycomb lattice made of two types of atoms — boron and nitrogen.

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Boron-Doped Graphene for Electrocatalytic N2 …

Boron-doped graphene with different boron structures was rationally synthesized to enhance the adsorption of N2, thus enabling an efficient metal-free electrocatalyst for electrochemical N2 reduction in aqueous solution at ambient conditions. At a doping level of 6.2%, boron-doped graphene achieved a NH3 production rate of 9.8 μg·hr−1·cm−2 and an excellent faradic efficiency (10.8% at ...

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Dual confinement of polysulfides in boron-doped …

A hybrid structure consisting of boron-doped porous carbon spheres and graphene (BPCS-G) has been designed and synthesized toward solving the polysulfide-shuttle problem, which is the most critical issue of current Li-S batteries. The proposed hybrid structure showing high surface area (870 m2·g−1) and high B-dopant content (6.51 wt.%) simultaneously offers both physical confinement and ...

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Boron nitride substrates for high-quality graphene ...

Graphene devices on standard SiO₂ substrates are highly disordered, exhibiting characteristics that are far inferior to the expected intrinsic properties of graphene. Although suspending the graphene above the substrate leads to a substantial improvement in device quality, this geometry imposes severe limitations on device architecture and functionality. There is a growing need ...

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Highly-dispersed Boron-doped Graphene Nanosheets …

Boron doped graphene nanosheets (B-GR) as a p-type semiconductor, provides much more edges to facilitate the loading of TiO2 nanoparticles (P25). Highly-dispersed P25/B-GR nanosheets with the size ...

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Highly-dispersed Boron-doped Graphene Nanosheets …

Boron doped graphene nanosheets (B-GR) as a p-type semiconductor, provides much more edges to facilitate the loading of TiO2 nanoparticles (P25). Highly-dispersed P25/B-GR nanosheets with the size ...

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Boron- and Nitrogen-Substituted Graphene …

2021-1-2 · Here, we show that nanoribbons of boron- and nitrogen-substituted graphene can be used as efficient electrocatalysts for the oxygen reduction reaction (ORR). Optimally doped graphene nanoribbons made into three-dimensional porous constructs exhibit the …

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Chemical Route to Twisted Graphene, Graphene …

Twisted multilayer graphene oxide could be prepared by the above procedure. Twisted boron nitride, prepared by cross‐linking layers of boron nitride (BN) containing surface amino groups with oxalic acid linker, exhibited a diffraction pattern comparable to that of twisted graphene.