Charge transfer dynamic in van der waals heterojunctions formed by thiophene-based semiconductor polymer and exfoliated franckeite Investigated from resonantly core excited electron

2021 ◽  
Author(s):  
Yunier Garcia Basabe ◽  
David Steinberg ◽  
Lara Daminelli ◽  
Cesar D. Mendoza ◽  
Eunezio de Souza ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Polymer Films ◽  
2D Materials ◽  
Van Der Waals ◽  
Excited Electron ◽  
New Device ◽  
Charge Transfer Dynamic

Organic/inorganic van der Waals heterojunctions formed by a combination of 2D materials with semiconductor polymer films enable the fabrication of new device architectures that are interesting for electronic and optoelectronic...

Band gap reduction in van der Waals layered 2D materials via a de-charge transfer mechanism

Nanoscale ◽  
2018 ◽  
Vol 10 (35) ◽  
pp. 16759-16764 ◽  
Author(s):  
Chunxiao Zhang ◽  
Huaqing Huang ◽  
Xiaojuan Ni ◽  
Yinong Zhou ◽  
Lei Kang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Band Gap ◽  
2D Materials ◽  
Van Der Waals ◽  
Critical Role ◽  
Transfer Mechanism ◽  
Charge Transfer Mechanism

The critical role of de-charge transfer in tuning the band gap of layered 2D materials.

Efficient Prediction of Structural and Electronic Properties of Hybrid 2D Materials Using DFT and Machine Learning

2018 ◽  
Author(s):  
Sherif Tawfik ◽  
Olexandr Isayev ◽  
Catherine Stampfl ◽  
Joseph Shapter ◽  
David Winkler ◽  
...  
Keyword(s):  
Machine Learning ◽  
Band Gap ◽  
Density Functional ◽  
2D Materials ◽  
Van Der Waals ◽  
Building Blocks ◽  
Machine Learning Techniques ◽  
Interlayer Distance ◽  
Computational Screening ◽  
Wide Range

Materials constructed from different van der Waals two-dimensional (2D) heterostructures offer a wide range of benefits, but these systems have been little studied because of their experimental and computational complextiy, and because of the very large number of possible combinations of 2D building blocks. The simulation of the interface between two different 2D materials is computationally challenging due to the lattice mismatch problem, which sometimes necessitates the creation of very large simulation cells for performing density-functional theory (DFT) calculations. Here we use a combination of DFT, linear regression and machine learning techniques in order to rapidly determine the interlayer distance between two different 2D heterostructures that are stacked in a bilayer heterostructure, as well as the band gap of the bilayer. Our work provides an excellent proof of concept by quickly and accurately predicting a structural property (the interlayer distance) and an electronic property (the band gap) for a large number of hybrid 2D materials. This work paves the way for rapid computational screening of the vast parameter space of van der Waals heterostructures to identify new hybrid materials with useful and interesting properties.

Two-dimensional topological insulators exfoliated from Na3Bi-like Dirac semimetals

2021 ◽  
Author(s):  
Xiaoqiu Guo ◽  
Ruixin Yu ◽  
Jingwen Jiang ◽  
Zhuang Ma ◽  
Xiuwen Zhang
Keyword(s):  
Physical Properties ◽  
Epitaxial Growth ◽  
Topological Insulators ◽  
2D Materials ◽  
Van Der Waals ◽  
Two Dimensional ◽  
Dirac Semimetals

Topological insulation is widely predicted in two-dimensional (2D) materials realized by epitaxial growth or van der Waals (vdW) exfoliation. Such 2D topological insulators (TI’s) host many interesting physical properties such...

Controllable Synthesis of Ultrathin Layered Transition Metallic Hydroxide/Zeolitic Imidazolate Framework-67 Hybrid Nanosheets for High-Performance Supercapacitors

2021 ◽  
Author(s):  
Chunli Liu ◽  
Yang Bai ◽  
Ji Wang ◽  
Ziming Qiu ◽  
Huan Pang
Keyword(s):  
Charge Transfer ◽  
Energy Conversion ◽  
High Performance ◽  
2D Materials ◽  
Two Dimensional ◽  
Controllable Synthesis ◽  
Zeolitic Imidazolate Framework ◽  
Fast Charge ◽  
Energy Conversion And Storage ◽  
And Storage

Two-dimensional (2D) materials with structures having diverse features are promising for application in energy conversion and storage. A stronger layered orientation can guarantee fast charge transfer along the 2D planes...

Moiré physics in twisted van der Waals heterostructures of 2D materials

2021 ◽  
Author(s):  
Sanjay K. Behura ◽  
Alexis Miranda ◽  
Sasmita Nayak ◽  
Kayleigh Johnson ◽  
Priyanka Das ◽  
...  
Keyword(s):  
2D Materials ◽  
Van Der Waals ◽  
Van Der Waals Heterostructures

Graphene Quantum Dots Assisted Exfoliation of Atomically-thin 2D Materials and As-formed 0D/2D van der Waals Heterojunction for HER

Carbon ◽  
2021 ◽  
Author(s):  
Jun Gong ◽  
Zheye Zhang ◽  
Zhiping Zeng ◽  
Wenjun Wang ◽  
Lingxuan Kong ◽  
...  
Keyword(s):  
Quantum Dots ◽  
2D Materials ◽  
Van Der Waals ◽  
Graphene Quantum Dots

Femtosecond nano-videography of interlayer charge transfer in van der Waals heterostructures

2021 ◽  
Author(s):  
M. Zizlsperger ◽  
M. Plankl ◽  
P. E. Faria Junior ◽  
F. Mooshammer ◽  
T. Siday ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Van Der Waals ◽  
Van Der Waals Heterostructures

scholarly journals Investigation on the interlayer coupling and bonding in layered nitride-halides ThNF and ThNCl

RSC Advances ◽  
2021 ◽  
Vol 11 (46) ◽  
pp. 28698-28703
Author(s):  
Xiao Liu ◽  
Da-Yong Liu ◽  
Ting-Ting Li ◽  
Dong-Meng Chen ◽  
Liang-Jian Zou
Keyword(s):  
Charge Transfer ◽  
Chemical Bond ◽  
Van Der Waals ◽  
Interlayer Coupling ◽  
Li Ion

Showing that the interlayer charge transfer and chemical bond in ThNF and ThNCl are considerable larger than the van der Waals compound ZrNCl, addressing the difficulty in intercalating Li ion or other charged molecules.

Phonon-Assisted Ultrafast Charge Transfer at van der Waals Heterostructure Interface

Nano Letters ◽  
2017 ◽  
Vol 17 (10) ◽  
pp. 6435-6442 ◽  
Author(s):  
Qijing Zheng ◽  
Wissam A. Saidi ◽  
Yu Xie ◽  
Zhenggang Lan ◽  
Oleg V. Prezhdo ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Van Der Waals ◽  
Van Der Waals Heterostructure ◽  
Ultrafast Charge Transfer
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