Self-assembly of electronically abrupt borophene/organic lateral heterostructures

Liu, Xiaolong; Wei, Zonghui; Balla, Itamar; Mannix, Andrew J.; Guisinger, Nathan P.; Luijten, Erik; Hersam, Mark C.

doi:10.1126/sciadv.1602356

Cited by 89 publications

(69 citation statements)

References 52 publications

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“…Adamska et al calculated electrical conductivity using the BoltzWann package . Comparing with the conductivity graphene which is red C line in Figure a,b, the conductivity of the explored borophene structures are always lower than that graphene, indicating borophene indeed is an excellent conductor.…”

Section: Potential Application Of Borophene In Electronics Supercondmentioning

confidence: 99%

2D Boron Sheets: Structure, Growth, and Electronic and Thermal Transport Properties

Gao

Cheng

et al. 2019

Adv Funct Materials

152

101

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The structures of boron clusters, such as flat clusters and fullerenes, resemble those of carbon. Various two‐dimensional (2D) borophenes have been proposed since the production of graphene. The recent successful fabrication of borophene sheets has prompted extensive researches, and some unique properties are revealed. In this review, the recent theoretical and experimental progress on the structure, growth, and electronic and thermal transport properties of borophene sheets is summarized. The history of prediction of boron sheet structures is introduced. Existing with a mixture of triangle lattice and hexagonal lattice, the structures of boron sheets have peculiar characteristics of polymorphism and show significant dependence on the substrate. Due to the unique structure and complex BB bonds, borophene sheets have many interesting electronic and thermal transport properties, such as strong nonlinear effect, strong thermal transport anisotropy, high thermal conductance in the ballistic transport and low thermal conductivity in the diffusive transport. The growth mechanism and synthesis of borophene sheets on different metal substrates are also presented. The successful prediction and synthesis will shed light on the exploration of new novel materials. Besides, the outstanding and peculiar properties of borophene make them tempting platform for exploring novel physical phenomena and extensive applications.

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Section: Potential Application Of Borophene In Electronics Supercondmentioning

confidence: 99%

2D Boron Sheets: Structure, Growth, and Electronic and Thermal Transport Properties

Gao

Cheng

et al. 2019

Adv Funct Materials

152

101

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“…While elemental 2D materials inherently exhibit many exciting properties that make them strong candidates for future electronic and sensors, combining these materials in the form of heterostructures can further enable coupled or enhanced effects that the materials do not exhibit individually. For instance, experimental lateral heterostructures were recently fabricated from borophene/perylenetetracarboxylic dianhydride (PTCDA), demonstrating metal/semiconductor behavior and resistive switching due to the abrupt borophene/polymer interfaces . The transition in density of states from borophene to PTCDA occurred at the molecular length scale because of these sharp interfaces.…”

Section: Electronics and Sensingmentioning

confidence: 99%

Emerging Applications of Elemental 2D Materials

et al. 2019

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As elemental main group materials (i.e., silicon and germanium) have dominated the field of modern electronics, their monolayer 2D analogues have shown great promise for next‐generation electronic materials as well as potential game‐changing properties for optoelectronics, energy, and beyond. These atomically thin materials composed of single atomic variants of group III through group VI elements on the periodic table have already demonstrated exciting properties such as near‐room‐temperature topological insulation in bismuthene, extremely high electron mobilities in phosphorene and silicone, and substantial Li‐ion storage capability in borophene. Isolation of these materials within the postgraphene era began with silicene in 2010 and quickly progressed to the experimental identification or theoretical prediction of 15 of the 18 main group elements existing as solids at standard pressure and temperatures. This review first focuses on the significance of defects/functionalization, discussion of different allotropes, and overarching structure–property relationships of 2D main group elemental materials. Then, a complete review of emerging applications in electronics, sensing, spintronics, plasmonics, photodetectors, ultrafast lasers, batteries, supercapacitors, and thermoelectrics is presented by application type, including detailed descriptions of how the material properties may be tailored toward each specific application.

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“…The growth rate is typically low to promote epitaxial growth. While MBE has been mostly applied to grow 2D compounds, such as NbSe 2 (Figure h), elemental 2D materials have also been demonstrated . The capability of continuous growth of multiple layers of alternating materials is especially useful for creating 2D heterostructures and superlattices …”

Section: Synthesis and Preparation Of 2d Materialsmentioning

confidence: 99%

“…While the predicted electronic, mechanical, and electrochemical properties of borophene render it a highly promising 2D material, its surface chemistry is relatively unexplored. The first borophene‐based heterostructure has recently been demonstrated by interfacing borophene with the organic semiconductor PTCDA . PTCDA is known to self‐assemble into a herringbone structure on various surfaces including graphene and WSe 2 .…”

Section: Control Of Surface and Interface Propertiesmentioning

confidence: 99%

“…Including graphene, most of the 2D materials are integral parts of bulk layered van der Waals crystals. In addition, recent work has demonstrated synthetic 2D materials with atomic lattices that do not resemble their bulk counterparts including borophene, silicene, germanene, and stanene . Geometrically, the atomically thin nature of 2D materials offers high mechanical flexibility and optical transparency, opportunities for building functional heterostructures, and minimal dielectric screening, which are ideal platforms for wearable electronics, sensors, displays, and related technologies.…”

Section: Introductionmentioning

confidence: 99%

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Interface Characterization and Control of 2D Materials and Heterostructures

2018

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2D materials and heterostructures have attracted significant attention for a variety of nanoelectronic and optoelectronic applications. At the atomically thin limit, the material characteristics and functionalities are dominated by surface chemistry and interface coupling. Therefore, methods for comprehensively characterizing and precisely controlling surfaces and interfaces are required to realize the full technological potential of 2D materials. Here, the surface and interface properties that govern the performance of 2D materials are introduced. Then the experimental approaches that resolve surface and interface phenomena down to the atomic scale, as well as strategies that allow tuning and optimization of interfacial interactions in van der Waals heterostructures, are systematically reviewed. Finally, a future outlook that delineates the remaining challenges and opportunities for 2D material interface characterization and control is presented.

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Self-assembly of electronically abrupt borophene/organic lateral heterostructures

Abstract: Integrating borophene with organic molecules results in electronically abrupt self-assembled lateral heterostructures.

Cited by 89 publications

References 52 publications

2D Boron Sheets: Structure, Growth, and Electronic and Thermal Transport Properties

2D Boron Sheets: Structure, Growth, and Electronic and Thermal Transport Properties

Emerging Applications of Elemental 2D Materials

Interface Characterization and Control of 2D Materials and Heterostructures

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