Van der Waals heterostructures
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TLDR
With steady improvement in fabrication techniques and using graphene’s springboard, van der Waals heterostructures should develop into a large field of their own.Abstract:
Fabrication techniques developed for graphene research allow the disassembly of many layered crystals (so-called van der Waals materials) into individual atomic planes and their reassembly into designer heterostructures, which reveal new properties and phenomena. Andre Geim and Irina Grigorieva offer a forward-looking review of the potential of layering two-dimensional materials into novel heterostructures held together by weak van der Waals interactions. Dozens of these one-atom- or one-molecule-thick crystals are known. Graphene has already been well studied but others, such as monolayers of hexagonal boron nitride, MoS2, WSe2, graphane, fluorographene, mica and silicene are attracting increasing interest. There are many other monolayers yet to be examined of course, and the possibility of combining graphene with other crystals adds even further options, offering exciting new opportunities for scientific exploration and technological innovation. Research on graphene and other two-dimensional atomic crystals is intense and is likely to remain one of the leading topics in condensed matter physics and materials science for many years. Looking beyond this field, isolated atomic planes can also be reassembled into designer heterostructures made layer by layer in a precisely chosen sequence. The first, already remarkably complex, such heterostructures (often referred to as ‘van der Waals’) have recently been fabricated and investigated, revealing unusual properties and new phenomena. Here we review this emerging research area and identify possible future directions. With steady improvement in fabrication techniques and using graphene’s springboard, van der Waals heterostructures should develop into a large field of their own.read more
Citations
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Journal ArticleDOI
Interfacial Thermal Conductance of a Silicene/Graphene Bilayer Heterostructure and the Effect of Hydrogenation
Bo Liu,Julia A. Baimova,C. D. Reddy,Adrian Wing-Keung Law,Sergey V. Dmitriev,Sergey V. Dmitriev,Hong Wu,Kun Zhou +7 more
TL;DR: Using molecular dynamics simulations, the interfacial thermal conductance G of an SE/GE bilayer heterostructure is studied and hydrogenation of GE is efficient in enhancing G if an optimum hydrogenation pattern is adopted.
Journal ArticleDOI
Interlayer coupling effects on Schottky barrier in the arsenene-graphene van der Waals heterostructures
TL;DR: In this paper, the electronic characteristics of arsenene-graphene van der Waals (vdW) heterostructures were studied by using first-principles methods.
Journal ArticleDOI
Nanocavity Enhancement for Ultra‐Thin Film Optical Absorber
Haomin Song,Luqing Guo,Zhejun Liu,Kai Liu,Xie Zeng,Dengxin Ji,Nan Zhang,Haifeng Hu,Suhua Jiang,Qiaoqiang Gan +9 more
TL;DR: A fundamental strategy is developed to enhance the light-matter interaction of ultra-thin films based on a strong interference effect in planar nanocavities, and overcome the limitation between the optical absorption and film thickness of energy harvesting/conversion materials.
Journal ArticleDOI
Tailoring sample-wide pseudo-magnetic fields on a graphene-black phosphorus heterostructure.
Yanpeng Liu,J. N. B. Rodrigues,Yong Zheng Luo,Linjun Li,Alexandra Carvalho,Ming Yang,Ming Yang,Evan Laksono,Junpeng Lu,Yang Bao,Hai Xu,Sherman Jun Rong Tan,Zhizhan Qiu,Chorng Haur Sow,Yuan Ping Feng,A. H. Castro Neto,Shaffique Adam,Shaffique Adam,Jiong Lu,Kian Ping Loh +19 more
TL;DR: It is reported that superposing graphene on multilayer black phosphorus creates shear-strained superlattices that generate a PMF over an entire graphene–black phosphorus heterostructure with edge size of tens of micrometres.
Journal ArticleDOI
Centimeter Scale Patterned Growth of Vertically Stacked Few Layer Only 2D MoS2/WS2 van der Waals Heterostructure
Nitin Choudhary,Juhong Park,Jun Yeon Hwang,Hee-Suk Chung,Kenneth Dumas,Saiful I. Khondaker,Wonbong Choi,Yeonwoong Jung +7 more
TL;DR: The chemical vapor deposition (CVD) growth of large-area (>2 cm2) patterned 2D vdW heterostructures composed of few layer, vertically-stacked MoS2 and WS2 is reported, showing intrinsic scalability and controllability of the CVD method.
References
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