Hexagonal Boron Nitride for Surface Passivation of Two-Dimensional van der Waals Heterojunction Solar Cells

2019 ◽  
Vol 11 (43) ◽  
pp. 39765-39771 ◽  
Author(s):  
Ah-Jin Cho ◽  
Jang-Yeon Kwon
RSC Advances ◽  
2016 ◽  
Vol 6 (108) ◽  
pp. 107114-107126 ◽  
Author(s):  
M. Kamaraj ◽  
J. Vijaya Sundar ◽  
V. Subramanian

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.


Nanoscale ◽  
2013 ◽  
Vol 5 (22) ◽  
pp. 11275 ◽  
Author(s):  
Mariyappan Shanmugam ◽  
Robin Jacobs-Gedrim ◽  
Chris Durcan ◽  
Bin Yu

Nanomaterials ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2305
Author(s):  
Sergey G. Martanov ◽  
Natalia K. Zhurbina ◽  
Mikhail V. Pugachev ◽  
Aliaksandr I. Duleba ◽  
Mark A. Akmaev ◽  
...  

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.


2020 ◽  
Vol 6 (49) ◽  
pp. eabd3655
Author(s):  
Yaping Yang ◽  
Jidong Li ◽  
Jun Yin ◽  
Shuigang Xu ◽  
Ciaran Mullan ◽  
...  

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.


Nanoscale ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 2703-2709 ◽  
Author(s):  
Xiangdong Guo ◽  
Hai Hu ◽  
Debo Hu ◽  
Baoxin Liao ◽  
Ke Chen ◽  
...  

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.


Nano Research ◽  
2014 ◽  
Vol 8 (4) ◽  
pp. 1357-1364 ◽  
Author(s):  
André Dankert ◽  
M. Venkata Kamalakar ◽  
Abdul Wajid ◽  
R. S. Patel ◽  
Saroj P. Dash

2018 ◽  
Vol 47 (16) ◽  
pp. 6342-6369 ◽  
Author(s):  
Ki Kang Kim ◽  
Hyun Seok Lee ◽  
Young Hee Lee

The construction of large surface area hexagonal boron nitride for van der Waals heterostructures and 2D-layered electronics is reviewed.


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