Two-dimensional topological insulators exfoliated from Na3Bi-like Dirac semimetals

2021 ◽  
Author(s):  
Xiaoqiu Guo ◽  
Ruixin Yu ◽  
Jingwen Jiang ◽  
Zhuang Ma ◽  
Xiuwen Zhang
Keyword(s):  
Physical Properties ◽  
Epitaxial Growth ◽  
Topological Insulators ◽  
2D Materials ◽  
Van Der Waals ◽  
Two Dimensional ◽  
Dirac Semimetals

Topological insulation is widely predicted in two-dimensional (2D) materials realized by epitaxial growth or van der Waals (vdW) exfoliation. Such 2D topological insulators (TI’s) host many interesting physical properties such...

scholarly journals Exotic Physical Properties of 2D Materials Modulated by Moiré Superlattices

2021 ◽  
Author(s):  
Beibei Shi ◽  
Pengfei Qi ◽  
Meiling Jiang ◽  
Yuchen Dai ◽  
Feng Lin ◽  
...  
Keyword(s):  
Physical Properties ◽  
2D Materials ◽  
Van Der Waals ◽  
Two Dimensional ◽  
Van Der Waals Heterostructures ◽  
Moire Pattern ◽  
Moiré Pattern ◽  
Two Dimensional Materials ◽  
Quantum Phenomena

Van der Waals heterostructures of two-dimensional materials are naturally endowed with the nanoscale moiré pattern, which has become a versatile platform for studying novel quantum phenomena during past decades. Here,...

A van der Waals epitaxial growth of ultrathin two-dimensional Sn film on graphene covered Cu(111) substrate

2019 ◽  
Vol 115 (14) ◽  
pp. 141601 ◽  
Author(s):  
Haifei Wu ◽  
Jiahao Tang ◽  
Qifeng Liang ◽  
Biyun Shi ◽  
Yixiao Niu ◽  
...  
Keyword(s):  
Epitaxial Growth ◽  
Van Der Waals ◽  
Two Dimensional

scholarly journals Cross-plane transport in a single-molecule two-dimensional van der Waals heterojunction

2020 ◽  
Vol 6 (22) ◽  
pp. eaba6714 ◽  
Author(s):  
Shiqiang Zhao ◽  
Qingqing Wu ◽  
Jiuchan Pi ◽  
Junyang Liu ◽  
Jueting Zheng ◽  
...  
Keyword(s):  
Charge Transport ◽  
Single Molecule ◽  
Density Functional ◽  
Electronic Materials ◽  
2D Materials ◽  
Molecular Layer ◽  
Van Der Waals ◽  
Density Functional Theory Calculations ◽  
Two Dimensional ◽  
Guest Molecules

Two-dimensional van der Waals heterojunctions (2D-vdWHs) stacked from atomically thick 2D materials are predicted to be a diverse class of electronic materials with unique electronic properties. These properties can be further tuned by sandwiching monolayers of planar organic molecules between 2D materials to form molecular 2D-vdWHs (M-2D-vdWHs), in which electricity flows in a cross-plane way from one 2D layer to the other via a single molecular layer. Using a newly developed cross-plane break junction technique, combined with density functional theory calculations, we show that M-2D-vdWHs can be created and that cross-plane charge transport can be tuned by incorporating guest molecules. The M-2D-vdWHs exhibit distinct cross-plane charge transport signatures, which differ from those of molecules undergoing in-plane charge transport.

scholarly journals Emerging Artificial Two-Dimensional van der Waals Heterostructures for Optoelectronics

2020 ◽  
Author(s):  
Hongcheng Ruan ◽  
Yu Huang ◽  
Yuqian Chen ◽  
Fuwei Zhuge
Keyword(s):  
Material Properties ◽  
2D Materials ◽  
Van Der Waals ◽  
Optoelectronic Devices ◽  
Vertical Direction ◽  
Two Dimensional ◽  
Device Application ◽  
Optical Memories ◽  
Optoelectronic Applications ◽  
Transfer Method

Two-dimensional (2D) materials are attracting explosive attention for their intriguing potential in versatile applications, covering optoelectronics, electronics, sensors, etc. An attractive merit of 2D materials is their viable van der Waals (VdW) stacking in artificial sequence, thus forming different atomic arrangements in vertical direction and enabling unprecedented tailoring of material properties and device application. In this chapter, we summarize the latest progress in assembling VdW heterostructures for optoelectronic applications by beginning with the basic pick-transfer method for assembling 2D materials and then discussing the different combination of 2D materials of semiconductor, conductor, and insulator properties for various optoelectronic devices, e.g., photodiode, phototransistors, optical memories, etc.

Tailoring the structural and electronic properties of an SnSe2/MoS2 van der Waals heterostructure with an electric field and the insertion of a graphene sheet

2019 ◽  
Vol 21 (39) ◽  
pp. 22140-22148 ◽  
Author(s):  
Tuan V. Vu ◽  
Nguyen V. Hieu ◽  
Le T. P. Thao ◽  
Nguyen N. Hieu ◽  
Huynh V. Phuc ◽  
...  
Keyword(s):  
Electric Field ◽  
Electronic Properties ◽  
Graphene Sheet ◽  
2D Materials ◽  
Van Der Waals ◽  
Optoelectronic Devices ◽  
Two Dimensional ◽  
Van Der Waals Heterostructure ◽  
Two Dimensional Materials ◽  
Structural And Electronic Properties

van der Waals heterostructures by stacking different two-dimensional materials are being considered as potential materials for nanoelectronic and optoelectronic devices because they can show the most potential advantages of individual 2D materials.

Epitaxial growth and physical properties of 2D materials beyond graphene: from monatomic materials to binary compounds

2018 ◽  
Vol 47 (16) ◽  
pp. 6073-6100 ◽  
Author(s):  
Geng Li ◽  
Yu-Yang Zhang ◽  
Hui Guo ◽  
Li Huang ◽  
Hongliang Lu ◽  
...  
Keyword(s):  
Physical Properties ◽  
Epitaxial Growth ◽  
2D Materials ◽  
Recent Advances ◽  
Binary Compounds

This review highlights the recent advances of epitaxial growth of 2D materials beyond graphene.

van der Waals Epitaxial Growth and Interfacial Passivation of Two-Dimensional Single-Crystalline Few-Layer Gray Arsenic Nanoflakes

2019 ◽  
Vol 31 (12) ◽  
pp. 4524-4535 ◽  
Author(s):  
Yi Hu ◽  
Zheng-Hang Qi ◽  
Jingyu Lu ◽  
Renpeng Chen ◽  
Mingzhi Zou ◽  
...  
Keyword(s):  
Epitaxial Growth ◽  
Van Der Waals ◽  
Two Dimensional ◽  
Single Crystalline

A novel SiO monolayer with a negative Poisson's ratio and Dirac semimetal properties

2020 ◽  
Vol 22 (35) ◽  
pp. 20107-20113
Author(s):  
Hui Du ◽  
Guoling Li ◽  
Jiao Chen ◽  
Zhenlong Lv ◽  
Yuanzheng Chen ◽  
...  
Keyword(s):  
Physical Properties ◽  
Poisson’S Ratio ◽  
2D Materials ◽  
Poisson's Ratio ◽  
Negative Poisson’S Ratio ◽  
Two Dimensional ◽  
2D Material ◽  
Dirac Semimetal ◽  
Negative Poisson's Ratio

Although a number of interesting physical properties such as a negative Poisson's ratio (NPR) and Dirac semimetal (DS) properties have been recently predicted in two-dimensional (2D) materials, the realization of a 2D material that exhibit both of these DS and NPR features has rarely been reported.

scholarly journals Preparation and Properties of 2D Materials

Nanomaterials ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 764
Author(s):  
Byungjin Cho ◽  
Yonghun Kim
Keyword(s):  
Physical Properties ◽  
2D Materials ◽  
Great Success ◽  
Two Dimensional

Since the great success of graphene, atomically thin layered nanomaterials—called two-dimensional (2D) materials—have attracted tremendous attention due to their extraordinary physical properties [...]

scholarly journals Emerging 2D Materials and Their Van Der Waals Heterostructures

Nanomaterials ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 579 ◽  
Author(s):  
Antonio Di Bartolomeo
Keyword(s):  
Water Splitting ◽  
High Performance ◽  
State Of The Art ◽  
2D Materials ◽  
Van Der Waals ◽  
Functional Materials ◽  
Building Blocks ◽  
Theoretical Research ◽  
Two Dimensional ◽  
Tremendous Amount

Two-dimensional (2D) materials and their van der Waals heterojunctions offer the opportunity to combine layers with different properties as the building blocks to engineer new functional materials for high-performance devices, sensors, and water-splitting photocatalysts. A tremendous amount of work has been done thus far to isolate or synthesize new 2D materials as well as to form new heterostructures and investigate their chemical and physical properties. This article collection covers state-of-the-art experimental, numerical, and theoretical research on 2D materials and on their van der Waals heterojunctions for applications in electronics, optoelectronics, and energy generation.

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