scholarly journals van der Waals-Induced Chromatic Shifts in Hydrogen-Bonded Two-Dimensional Porphyrin Arrays on Boron Nitride

ACS Nano ◽  
2015 ◽  
Vol 9 (10) ◽  
pp. 10347-10355 ◽  
Author(s):  
Vladimir V. Korolkov ◽  
Simon A. Svatek ◽  
Alex Summerfield ◽  
James Kerfoot ◽  
Lixu Yang ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Van Der Waals ◽  
Two Dimensional ◽  
Hydrogen Bonded

Dioxin sensing properties of graphene and hexagonal boron nitride based van der Waals solids: a first-principles study

RSC Advances ◽  
2016 ◽  
Vol 6 (108) ◽  
pp. 107114-107126 ◽  
Author(s):  
M. Kamaraj ◽  
J. Vijaya Sundar ◽  
V. Subramanian
Keyword(s):  
Boron Nitride ◽  
Dft Calculations ◽  
Electronic Properties ◽  
First Principles ◽  
Hexagonal Boron Nitride ◽  
Van Der Waals ◽  
Two Dimensional ◽  
Sensing Properties ◽  
First Principles Study

The changes in the electronic properties of single and bilayers of graphene and hexagonal boron nitride two dimensional sheets have been investigated upon interaction with 2,3,7,8-tetrachlorodibenzo-p-dioxin by employing the DFT calculations.

The generation of possible crystal structures of primary amides

1983 ◽  
Vol 388 (1794) ◽  
pp. 133-175 ◽  
Keyword(s):  
Crystal Structures ◽  
Van Der Waals ◽  
Three Dimensional ◽  
Close Packing ◽  
Two Dimensional ◽  
Coulomb Interactions ◽  
Primary Amide ◽  
Size And Shape ◽  
Dimensional Crystal ◽  
Hydrogen Bonded

Procedures are outlined for generation of crystal structures of primary amide molecules by constructing the possible ways in which the molecules may pack. For each given one- or two-dimensional hydrogen-bonded array, ensembles of three-dimensional crystal structures are generated by considering the possible ways in which the arrays may be juxtaposed. Observed and generated hypothetical molecular arrangements are analysed to highlight both favourable and unfavourable features, par­ticularly in terms of close packing principles, the size and shape of the molecule, van der Waals and Coulomb interactions and N-H ∙ ∙ ∙ O bonding geometry.

scholarly journals Making van der Waals Heterostructures Assembly Accessible to Everyone

Nanomaterials ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2305
Author(s):  
Sergey G. Martanov ◽  
Natalia K. Zhurbina ◽  
Mikhail V. Pugachev ◽  
Aliaksandr I. Duleba ◽  
Mark A. Akmaev ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Condensed Matter ◽  
Van Der Waals ◽  
Atomic Layer ◽  
Two Dimensional ◽  
Van Der Waals Heterostructures ◽  
Online Retail ◽  
Two Dimensional Materials ◽  
Retail Services

Van-der Waals heterostructures assembled from one or few atomic layer thickness crystals are becoming increasingly more popular in condensed matter physics. These structures are assembled using transfer machines, those are based on mask aligners, probe stations or are home-made. For many laboratories it is vital to build a simple, convenient and universal transfer machine. In this paper we discuss the guiding principles for the design of such a machine, review the existing machines and demonstrate our own construction, that is powerful and fast-in-operation. All components of this machine are extremely cheap and can be easily purchased using common online retail services. Moreover, assembling a heterostructure out of exfoliated commercially available hexagonal boron nitride and tungsten diselenide crystals with a pick-up technique and using the microphotolumenescence spectra, we show well-resolved exciton and trion lines, as a results of disorder suppression in WSe2 monolayer. Our results thus show that technology of the two-dimensional materials and heterostructures becomes accessible to anyone.

scholarly journals High harmonic generation in graphene–boron nitride heterostructures

2020 ◽  
Vol 8 (35) ◽  
pp. 12085-12091 ◽  
Author(s):  
Zi-Yu Chen ◽  
Rui Qin
Keyword(s):  
Boron Nitride ◽  
Harmonic Generation ◽  
Van Der Waals ◽  
High Harmonic ◽  
High Harmonic Generation ◽  
Two Dimensional ◽  
Van Der Waals Heterostructures

High harmonic generation and enhancement by tuning the interlayer separation in two-dimensional van der Waals heterostructures are investigated.

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.

High-efficiency modulation of coupling between different polaritons in an in-plane graphene/hexagonal boron nitride heterostructure

Nanoscale ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 2703-2709 ◽  
Author(s):  
Xiangdong Guo ◽  
Hai Hu ◽  
Debo Hu ◽  
Baoxin Liao ◽  
Ke Chen ◽  
...  
Keyword(s):  
Boron Nitride ◽  
High Efficiency ◽  
Hexagonal Boron Nitride ◽  
Van Der Waals ◽  
Two Dimensional ◽  
Low Loss ◽  
Nanophotonic Devices ◽  
Phonon Polaritons ◽  
Graphene Plasmons

Two-dimensional van der Waals (vdW) materials have a full set of highly confined polariton modes, such as low-loss phonon polaritons and dynamically tunable graphene plasmons, which provide a solution for integrated nanophotonic devices by combining the unique advantages of different polaritons.

Generating robust two-dimensional hole gas at the interface between boron nitride and diamond

2020 ◽  
Vol 59 (9) ◽  
pp. 090910
Author(s):  
Kongping Wu ◽  
Liyong Gan ◽  
Leng Zhang ◽  
Pengzhan Zhang ◽  
Fei Liu ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Two Dimensional
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