scholarly journals Smoothening of wrinkles in CVD-grown hexagonal boron nitride films

Nanoscale ◽  
2018 ◽  
Vol 10 (34) ◽  
pp. 16243-16251 ◽  
Author(s):  
Jinjun Lin ◽  
Roland Yingjie Tay ◽  
Hongling Li ◽  
Lin Jing ◽  
Siu Hon Tsang ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
2D Materials ◽  
Low Density ◽  
Two Dimensional ◽  
Dangling Bonds ◽  
Boron Nitride Films

Hexagonal boron nitride (h-BN) is an ideal substrate for two-dimensional (2D) materials because of its unique electrically insulating nature, atomic smoothness and low density of dangling bonds.

Synthesis of centimeter-scale high-quality polycrystalline hexagonal boron nitride films from the Fe flux

Nanoscale ◽  
2021 ◽  
Author(s):  
Yifei Li ◽  
Xin Wen ◽  
Changjie Tan ◽  
Ning Li ◽  
Ruijie Li ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Two Dimensional ◽  
High Quality ◽  
Boron Nitride Films

Owing to its irreplaceable roles in new functional devices, such as universal substrates and excellent layered insulators, high-quality hexagonal BN (hBN) crystals are exceedingly required in the field of two-dimensional...

Atomic-scale etching of hexagonal boron nitride for device integration based on two-dimensional materials

Nanoscale ◽  
2018 ◽  
Vol 10 (32) ◽  
pp. 15205-15212 ◽  
Author(s):  
Hamin Park ◽  
Gwang Hyuk Shin ◽  
Khang June Lee ◽  
Sung-Yool Choi
Keyword(s):  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
2D Materials ◽  
Etching Rate ◽  
Atomic Scale ◽  
Two Dimensional ◽  
Two Dimensional Materials ◽  
Device Integration

We propose the atomic-scale etching of h-BN achieving an etching rate less than 1 nm min−1 for device integration based on 2D materials.

scholarly journals Tunable plasmon-phonon polaritons in anisotropic 2D materials on hexagonal boron nitride

Nanophotonics ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 3909-3920
Author(s):  
Hodjat Hajian ◽  
Ivan D. Rukhlenko ◽  
George W. Hanson ◽  
Tony Low ◽  
Bayram Butun ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Emission Rate ◽  
Local Density ◽  
Hexagonal Boron Nitride ◽  
2D Materials ◽  
Two Dimensional ◽  
Spontaneous Emission Rate ◽  
Mid Infrared ◽  
Phonon Polaritons ◽  
Topological Transitions

AbstractMid-infrared (MIR) plasmon-phonon features of heterostructures composing of a plasmonic anisotropic two-dimensional material (A2DM) on a hexagonal boron nitride (hBN) film are analyzed. We derive the exact dispersion relations of plasmon-phonons supported by the heterostructures and demonstrate the possibility of topological transitions of these modes within the second Reststrahlen band of hBN. The topological transitions lead to enhanced local density of plasmon-phonon states, which intensifies the spontaneous emission rate, if the thickness of the hBN layer is appropriately chosen. We also investigate a lateral junction formed by A2DM/hBN and A2DM, demonstrating that one can realize asymmetric guiding, beaming, and unidirectionality of the hybrid guided modes. Our findings demonstrate potential capabilities of the A2DM/hBN heterostructures for active tunable light–matter interactions and asymmetric in-plane polariton nanophotonics in the MIR range.

scholarly journals In situ manipulation of van der Waals heterostructures for twistronics

2020 ◽  
Vol 6 (49) ◽  
pp. eabd3655
Author(s):  
Yaping Yang ◽  
Jidong Li ◽  
Jun Yin ◽  
Shuigang Xu ◽  
Ciaran Mullan ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
2D Materials ◽  
Twist Angle ◽  
Van Der Waals ◽  
Two Dimensional ◽  
Van Der Waals Heterostructures ◽  
Material Systems ◽  
Nontrivial Topology

In van der Waals heterostructures, electronic bands of two-dimensional (2D) materials, their nontrivial topology, and electron-electron interactions can be markedly changed by a moiré pattern induced by twist angles between different layers. This process is referred to as twistronics, where the tuning of twist angle can be realized through mechanical manipulation of 2D materials. Here, we demonstrate an experimental technique that can achieve in situ dynamical rotation and manipulation of 2D materials in van der Waals heterostructures. Using this technique, we fabricated heterostructures where graphene is perfectly aligned with both top and bottom encapsulating layers of hexagonal boron nitride. Our technique enables twisted 2D material systems in one single stack with dynamically tunable optical, mechanical, and electronic properties.

scholarly journals Layer-by-Layer Thinning of 2D Materials

2018 ◽  
pp. 36-37 ◽  
Author(s):  
Viet Phuong Pham
Keyword(s):  
Boron Nitride ◽  
Molybdenum Disulfide ◽  
Hexagonal Boron Nitride ◽  
2D Materials ◽  
Hafnium Dioxide ◽  
Layer By Layer ◽  
Two Dimensional ◽  
Structured Materials ◽  
Molybdenum Diselenide ◽  
Graphene Material

Two-dimensional (2D) structured materials are receiving huge interests since the discovery of graphene material first by the mechanical exfoliation method using scotch tape from the graphite in 2004 (1). Among them, graphene [1-15], molybdenum disulfide (MoS2) [10,16], black phosphorous [17], hexagonal-boron nitride (h-BN) [18-20], hafnium dioxide (HfO2) [21], molybdenum diselenide (MoSe2) [22], and 2D carbide nanosheets (MXene) [23] are emerging as many promising potential materials with novel properties in electronics and optoelectronics.

scholarly journals Tunnel magnetoresistance with atomically thin two-dimensional hexagonal boron nitride barriers

Nano Research ◽  
2014 ◽  
Vol 8 (4) ◽  
pp. 1357-1364 ◽  
Author(s):  
André Dankert ◽  
M. Venkata Kamalakar ◽  
Abdul Wajid ◽  
R. S. Patel ◽  
Saroj P. Dash
Keyword(s):  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Two Dimensional ◽  
Tunnel Magnetoresistance
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