scholarly journals Edge Defect-Free Anisotropic Two-Dimensional Sheets with Nearly Direct Band Gaps from a True One-Dimensional Van der Waals Nb2Se9 Material

ACS Omega ◽  
2020 ◽  
Vol 5 (19) ◽  
pp. 10800-10807
Author(s):  
Weon-Gyu Lee ◽  
You Kyoung Chung ◽  
Junho Lee ◽  
Bum Jun Kim ◽  
Sudong Chae ◽  
...  
Keyword(s):  
Van Der Waals ◽  
Band Gaps ◽  
Two Dimensional ◽  
Edge Defect ◽  
One Dimensional ◽  
Direct Band

scholarly journals High performance self-powered photodetector based on 1D Te-2D WS2 mixed-dimensional heterostructure

2021 ◽  
Author(s):  
Lixiang Han ◽  
Mengmeng Yang ◽  
Peiting Wen ◽  
Wei Gao ◽  
nengjie huo ◽  
...  
Keyword(s):  
High Performance ◽  
Van Der Waals ◽  
Sharp Interface ◽  
Two Dimensional ◽  
High Quality ◽  
One Dimensional ◽  
Self Powered

One dimensional (1D)-two dimensional (2D) van der Waals (vdWs) mixed-dimensional heterostructures with advantages of atomically sharp interface, high quality and good compatibility have attracted tremendous attention in recent years. The...

scholarly journals Anomalous phase transition behavior in hydrothermal grown layered tellurene

Nanoscale ◽  
2019 ◽  
Vol 11 (42) ◽  
pp. 20245-20251
Author(s):  
Han Li ◽  
Kedi Wu ◽  
Sijie Yang ◽  
Tara Boland ◽  
Bin Chen ◽  
...  
Keyword(s):  
Phase Transition ◽  
Van Der Waals ◽  
Dimensional Structure ◽  
Two Dimensional ◽  
Structure And Properties ◽  
Phase Transition Behavior ◽  
One Dimensional ◽  
Transition Behavior

Recent studies have demonstrated that tellurene is a van der Waals (vdW) two-dimensional material with potential optoelectronic and thermoelectric applications as a result of its pseudo-one-dimensional structure and properties.

Few-layer arsenic trichalcogenides: Emerging two-dimensional semiconductors with tunable indirect-direct band-gaps

2017 ◽  
Vol 699 ◽  
pp. 554-560 ◽  
Author(s):  
Naihua Miao ◽  
Jian Zhou ◽  
Baisheng Sa ◽  
Bin Xu ◽  
Zhimei Sun
Keyword(s):  
Band Gaps ◽  
Two Dimensional ◽  
Direct Band

scholarly journals Manipulable Electronic and Optical Properties of Two-Dimensional MoSTe/MoGe2N4 van der Waals Heterostructures

Nanomaterials ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 3338
Author(s):  
Jiali Wang ◽  
Xiuwen Zhao ◽  
Guichao Hu ◽  
Junfeng Ren ◽  
Xiaobo Yuan
Keyword(s):  
Optical Properties ◽  
Absorption Coefficient ◽  
High Performance ◽  
Density Functional ◽  
Van Der Waals ◽  
Two Dimensional ◽  
Van Der Waals Heterostructures ◽  
Electronic And Optical Properties ◽  
Wide Range ◽  
Direct Band

van der Waals heterostructures (vdWHs) can exhibit novel physical properties and a wide range of applications compared with monolayer two-dimensional (2D) materials. In this work, we investigate the electronic and optical properties of MoSTe/MoGe2N4 vdWH under two different configurations using the VASP software package based on density functional theory. The results show that Te4-MoSTe/MoGe2N4 vdWH is a semimetal, while S4-MoSTe/MoGe2N4 vdWH is a direct band gap semiconductor. Compared with the two monolayers, the absorption coefficient of MoSTe/MoGe2N4 vdWH increases significantly. In addition, the electronic structure and the absorption coefficient can be manipulated by applying biaxial strains and changing interlayer distances. These studies show that MoSTe/MoGe2N4 vdWH is an excellent candidate for high-performance optoelectronic devices.

Transition of CrI2 from two-dimensional network to one-dimensional chain at monolayer limit

2021 ◽  
Author(s):  
Yuanyuan Zhao ◽  
Hongsheng Liu ◽  
Junfeng Gao ◽  
Jijun Zhao
Keyword(s):  
Van Der Waals ◽  
Dimensional Chain ◽  
Two Dimensional ◽  
One Dimensional ◽  
Spintronic Devices ◽  
Dimensional Network

Two-dimensional (2D) magnets show promising applications in spintronic devices and appeal lots of attention. CrI2, a counterpart of CrI3, is a magnetic van der Waals crystal. However, the structure of...

Two-dimensional complete band gaps in one-dimensional metal-dielectric periodic structures

2008 ◽  
Vol 92 (5) ◽  
pp. 053104 ◽  
Author(s):  
Jin-long Zhang ◽  
Hai-tao Jiang ◽  
Stefan Enoch ◽  
Gérard Tayeb ◽  
Boris Gralak ◽  
...  
Keyword(s):  
Periodic Structures ◽  
Band Gaps ◽  
Two Dimensional ◽  
One Dimensional

scholarly journals Physics of excitons and their transport in two dimensional transition metal dichalcogenide semiconductors

RSC Advances ◽  
2019 ◽  
Vol 9 (44) ◽  
pp. 25439-25461 ◽  
Author(s):  
Bhaskar Kaviraj ◽  
Dhirendra Sahoo
Keyword(s):  
Transition Metal ◽  
Band Gaps ◽  
Transition Metal Dichalcogenide ◽  
Two Dimensional ◽  
Group Vi ◽  
Strong Light ◽  
Matter Coupling ◽  
Infrared Spectral ◽  
Direct Band

Two-dimensional (2D) group-VI transition metal dichalcogenide (TMD) semiconductors, such as MoS2, MoSe2, WS2 and others manifest strong light matter coupling and exhibit direct band gaps which lie in the visible and infrared spectral regimes.

Two-dimensional carbon allotropes with tunable direct band gaps and high carrier mobility

2021 ◽  
Vol 537 ◽  
pp. 147885 ◽  
Author(s):  
Wei Zhang ◽  
Changchun Chai ◽  
Qingyang Fan ◽  
Yanxing Song ◽  
Yintang Yang
Keyword(s):  
Carrier Mobility ◽  
Band Gaps ◽  
Two Dimensional ◽  
Carbon Allotropes ◽  
Direct Band ◽  
High Carrier Mobility ◽  
High Carrier

scholarly journals Two-dimensional boron–nitrogen–carbon monolayers with tunable direct band gaps

Nanoscale ◽  
2015 ◽  
Vol 7 (28) ◽  
pp. 12023-12029 ◽  
Author(s):  
Miao Zhang ◽  
Guoying Gao ◽  
Alex Kutana ◽  
Yanchao Wang ◽  
Xiaolong Zou ◽  
...  
Keyword(s):  
Cluster Expansion ◽  
Band Gaps ◽  
Two Dimensional ◽  
Direct Band ◽  
Boron Nitrogen

Two-dimensional boron–nitrogen–carbon monolayers were predicted with tunable direct band gaps using calypso and cluster-expansion methologies.

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