Coherent Control of Interlayer Vibrations in Bi2Se3 van der Waals Thin-Films

Interlayer vibrations with discrete quantized modes in two-dimensional (2D) materials can be excited by ultrafast light due to the inherent low dimensionality and van der Waals force as a restoring...

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

Physical Chemistry Chemical Physics ◽

10.1039/d1cp00736j ◽

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...

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Energy loss by fast-travelling charged particles traversing two-dimensional materials

EPJ Web of Conferences ◽

10.1051/epjconf/202023303005 ◽

2020 ◽

Vol 233 ◽

pp. 03005

Author(s):

Jaime E. Santos ◽

Mikhail Vasilevskiy ◽

Nuno M.R. Peres ◽

Antti-Pekka Jauho

Keyword(s):

Thin Films ◽

Energy Loss ◽

2D Materials ◽

Charged Particles ◽

Monolayer Graphene ◽

Two Dimensional ◽

Particle Detection ◽

Hydrodynamic Approximation ◽

Radiation Losses ◽

Two Dimensional Materials

We consider the problem of the radiation losses by fast-traveling particles traversing two-dimensional (2d) materials or thin films. After review¬ing the screening of electromagnetic fields by two dimensional conducting ma¬terials, we obtain the energy loss by a fast particle traversing such a material or film. In particular, we discuss the pattern of radiation emitted by monolayer graphene treated within a hydrodynamic approximation. These results are com¬pared with recent published results using similar approximations and, having in mind a potential application to particle detection, we briefly discuss how one can improve on the signals obtained by using other two-dimensional materials.

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

Science Advances ◽

10.1126/sciadv.aba6714 ◽

2020 ◽

Vol 6 (22) ◽

pp. eaba6714 ◽

Cited By ~ 1

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.

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Emerging Artificial Two-Dimensional van der Waals Heterostructures for Optoelectronics

Smart Nanosystems for Biomedicine, Optoelectronics and Catalysis ◽

10.5772/intechopen.88433 ◽

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.

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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

Physical Chemistry Chemical Physics ◽

10.1039/c9cp04689e ◽

2019 ◽

Vol 21 (39) ◽

pp. 22140-22148 ◽

Cited By ~ 19

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.

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Triangular-shaped molecular random tiling and molecular rotation in two-dimensional glassy networks

Nanoscale ◽

10.1039/c4nr01595a ◽

2014 ◽

Vol 6 (13) ◽

pp. 7221-7225 ◽

Cited By ~ 4

Author(s):

Yongtao Shen ◽

Ke Deng ◽

Songlin Yang ◽

Bo Qin ◽

Shiyu Cheng ◽

...

Keyword(s):

Van Der Waals ◽

Molecular Rotation ◽

Van Der Waals Force ◽

Two Dimensional ◽

Random Tiling

In this work, we have reported a new kind of 2D organic glassy network, which is fabricated by macrocycle molecules via van der Waals force.

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Explaining doping in material research (Hf substitution in ZnO films) by directly quantifying the van der Waals force

Physical Chemistry Chemical Physics ◽

10.1039/c9cp06441a ◽

2020 ◽

Vol 22 (7) ◽

pp. 4130-4137

Author(s):

Chia-Yun Lai ◽

Sergio Santos ◽

Toni Moser ◽

Boulos Alfakes ◽

Jin-You Lu ◽

...

Keyword(s):

Thin Films ◽

Van Der Waals ◽

Optoelectronic Properties ◽

Van Der Waals Force ◽

Zno Thin Films ◽

Zno Films ◽

Material Research

Non-monotonic behavior has been observed in the optoelectronic properties of ZnO thin films as doped with Hf (HZO).

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Emerging 2D Materials and Their Van Der Waals Heterostructures

Nanomaterials ◽

10.3390/nano10030579 ◽

2020 ◽

Vol 10 (3) ◽

pp. 579 ◽

Cited By ~ 6

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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Two-dimensional van der Waals heterojunctions for functional materials and devices

Journal of Materials Chemistry C ◽

10.1039/c7tc04697a ◽

2017 ◽

Vol 5 (47) ◽

pp. 12289-12297 ◽

Cited By ~ 57

Author(s):

Wei Hu ◽

Jinlong Yang

Keyword(s):

Electronic Structures ◽

2D Materials ◽

Van Der Waals ◽

Functional Materials ◽

Two Dimensional ◽

Potential Applications

Two-dimensional (2D) van der Waals heterojunctions combining the electronic structures of such 2D materials have been predicted theoretically and synthesized experimentally to expect more new properties and potential applications far beyond corresponding 2D materials.

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