h-BN/graphene van der Waals vertical heterostructure: a fully spin-polarized photocurrent generator

Nanoscale ◽  
2018 ◽  
Vol 10 (1) ◽  
pp. 174-183 ◽  
Author(s):  
Xixi Tao ◽  
Lei Zhang ◽  
Xiaohong Zheng ◽  
Hua Hao ◽  
Xianlong Wang ◽  
...  
Keyword(s):  
Quantum Transport ◽  
Graphene Nanoribbons ◽  
Van Der Waals ◽  
Light Irradiation ◽  
Spin Polarized ◽  
Vdw Heterostructure

A new scheme for generating perfect spin-polarized quantum transport in zigzag-edged graphene nanoribbons is demonstrated by light irradiation on a h-BN/graphene/h-BN van der Waals (vdW) heterostructure.

scholarly journals Tunable spin-polarized band gap in Si2/NiI2 vdW heterostructure

RSC Advances ◽  
2020 ◽  
Vol 10 (15) ◽  
pp. 8927-8935 ◽  
Author(s):  
Douglas Duarte de Vargas ◽  
Rogério José Baierle
Keyword(s):  
Density Functional Theory ◽  
Dft Calculations ◽  
Band Gap ◽  
Electronic Properties ◽  
Density Functional ◽  
Van Der Waals ◽  
Functional Theory ◽  
Spin Polarized ◽  
Structural And Electronic Properties ◽  
Vdw Heterostructure

Using density functional theory (DFT) calculations we investigate the structural and electronic properties of a heterogeneous van der Waals (vdW) structure consisting of silicene and NiI2 single layers.

Phosphorus-based metal-free Z-scheme 2D van der Waals heterostructures for visible-light photocatalytic water splitting: a first-principles study

2020 ◽  
Vol 22 (17) ◽  
pp. 9250-9256 ◽  
Author(s):  
Junyu Lang ◽  
Yun Hang Hu
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Visible Light Irradiation ◽  
First Principles ◽  
Van Der Waals ◽  
Light Irradiation ◽  
Metal Free ◽  
Photocatalytic System ◽  
Vdw Heterostructure ◽  
Visible Light Photocatalytic

BlueP/PN with a 2D van der Waals (vdW) heterostructure was proposed and theoretically investigated to construct a Z-scheme photocatalytic system for water splitting under visible light irradiation.

A first-principles study on the electronic and optical properties of a type-II C2N/g-ZnO van der Waals heterostructure

2021 ◽  
Vol 23 (6) ◽  
pp. 3963-3973
Author(s):  
Jianxun Song ◽  
Hua Zheng ◽  
Minxia Liu ◽  
Geng Zhang ◽  
Dongxiong Ling ◽  
...  
Keyword(s):  
Optical Properties ◽  
Dft Calculations ◽  
First Principles ◽  
Van Der Waals ◽  
Band Alignment ◽  
Type Ii ◽  
Electronic And Optical Properties ◽  
Direct Bandgap ◽  
Van Der Waals Heterostructure ◽  
Vdw Heterostructure

The structural, electronic and optical properties of a new vdW heterostructure, C2N/g-ZnO, with an intrinsic type-II band alignment and a direct bandgap of 0.89 eV at the Γ point are extensively studied by DFT calculations.

scholarly journals Van der Waals electride: Toward intrinsic two-dimensional ferromagnetism of spin-polarized anionic electrons

2021 ◽  
pp. 100473
Author(s):  
Hyun Yong Song ◽  
Byung Il Yoo ◽  
Jin-Ho Choi ◽  
Se-Hwang Kang ◽  
Joonho Bang ◽  
...  
Keyword(s):  
Van Der Waals ◽  
Two Dimensional ◽  
Spin Polarized

scholarly journals Natural van der Waals heterostructure cylindrite with highly anisotropic optical responses

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Arindam Dasgupta ◽  
Jie Gao ◽  
Xiaodong Yang
Keyword(s):  
Van Der Waals ◽  
Linear Dichroism ◽  
Third Harmonic ◽  
Inhomogeneous Strain ◽  
Optical Responses ◽  
Naturally Occurring ◽  
Van Der Waals Heterostructure ◽  
Vdw Heterostructure ◽  
Polarized Raman ◽  
On Chip

AbstractThe mechanical exfoliation of naturally occurring layered materials has emerged as an easy and effective method for achieving ultrathin van der Waals (vdW) heterostructures with well-defined lattice orientations of the constituent two-dimensional (2D) material layers. Cylindrite is one such naturally occurring vdW heterostructure, where the superlattice is composed of alternating stacks of SnS2-like and PbS-like layers. Although the constituent 2D lattices are isotropic, inhomogeneous strain occurring from local atomic alignment for forcing the commensuration makes the cylindrite superlattice structurally anisotropic. Here, we demonstrate the highly anisotropic optical responses of cylindrite thin flakes induced by the anisotropic crystal structure, including angle-resolved polarized Raman scattering, linear dichroism, and polarization-dependent anisotropic third-harmonic generation. Our results provide a promising approach for identifying various natural vdW heterostructure-based 2D materials with tailored optical properties and can be harnessed for realizing anisotropic optical devices for on-chip photonic circuits and optical information processing.

Two-dimensional C3N/blue phosphorene vdW heterostructure for Li, Na and K-ion batteries

2021 ◽  
Author(s):  
Mohammad Ubaid ◽  
Anver Aziz ◽  
Bhalchandra S. Pujari
Keyword(s):  
Van Der Waals ◽  
Potassium Ion ◽  
Two Dimensional ◽  
Van Der Waals Heterostructure ◽  
Vdw Heterostructure ◽  
Sodium And Potassium ◽  
Blue Phosphorene

We investigate a van der Waals heterostructure constructed using BP and C3N and investigate its use as an anode for lithium-, sodium- and potassium-ion batteries.

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