scholarly journals Rectifying optoelectronic memory based on WSe2/graphene heterostructures

2021 ◽  
Author(s):  
Sunghyung Kim ◽  
Myung Uk Park ◽  
Changjun Lee ◽  
Sum-Gyun Yi ◽  
Myeongjin Kim ◽  
...  
Keyword(s):  
Van Der Waals ◽  
Floating Gate ◽  
Two Dimensional ◽  
Van Der Waals Heterostructures ◽  
Two Dimensional Materials ◽  
Heterostructure Devices ◽  
Multifunctional Devices

Van der Waals heterostructures composed of two-dimensional materials vertically stacked have been extensively studied to develop various multifunctional devices. Here, we report WSe2/graphene heterostructure devices with a top floating gate...

scholarly journals Heated Assembly and Transfer of Van der Waals Heterostructures with Common Nail Polish

2021 ◽  
Vol 1 (1) ◽  
pp. 49-56
Author(s):  
Kristine L. Haley ◽  
Jeffrey A. Cloninger ◽  
Kayla Cerminara ◽  
Randy M. Sterbentz ◽  
Takashi Taniguchi ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Electronic Properties ◽  
Simple Technique ◽  
Van Der Waals ◽  
Two Dimensional ◽  
Van Der Waals Heterostructures ◽  
Nail Polish ◽  
Two Dimensional Materials ◽  
And Control ◽  
Manipulation And Control

Recent advances in the manipulation and control of layered, two-dimensional materials has given way to the construction of heterostructures with new functionality and unprecedented electronic properties. In this study, we present a simple technique to assemble and transfer van der Waals heterostructures using common nail polish. Commercially available nail polish acts as a resilient sticky polymer, allowing for the fabrication of complex multi-material stacks without noticeable fatigue. Directly comparing four commercially available brands of nail polish, we find that one stands out in terms of stability and stacking characteristics. Using this method, we fabricate two top-gated devices and report their electrical properties. Our technique reduces the complexity in assembling van der Waals heterostructures based on the proven van der Waals pick up method.

scholarly journals Exotic Physical Properties of 2D Materials Modulated by Moiré Superlattices

2021 ◽  
Author(s):  
Beibei Shi ◽  
Pengfei Qi ◽  
Meiling Jiang ◽  
Yuchen Dai ◽  
Feng Lin ◽  
...  
Keyword(s):  
Physical Properties ◽  
2D Materials ◽  
Van Der Waals ◽  
Two Dimensional ◽  
Van Der Waals Heterostructures ◽  
Moire Pattern ◽  
Moiré Pattern ◽  
Two Dimensional Materials ◽  
Quantum Phenomena

Van der Waals heterostructures of two-dimensional materials are naturally endowed with the nanoscale moiré pattern, which has become a versatile platform for studying novel quantum phenomena during past decades. Here,...

scholarly journals Photodetectors Based on Two-Dimensional Materials and Their van der Waals Heterostructures

2019 ◽  
Vol 35 (10) ◽  
pp. 1058-1077 ◽  
Author(s):  
Jiayi LI ◽  
◽  
Yi DING ◽  
David Wei ZHANG ◽  
Peng ZHOU
Keyword(s):  
Van Der Waals ◽  
Two Dimensional ◽  
Van Der Waals Heterostructures ◽  
Two Dimensional Materials

scholarly journals Hybrid van der Waals heterojunction based on two-dimensional materials

2021 ◽  
Vol 2109 (1) ◽  
pp. 012012
Author(s):  
Cuicui Sun ◽  
Meili Qi
Keyword(s):  
2D Materials ◽  
Van Der Waals ◽  
Research Progress ◽  
Material Research ◽  
Two Dimensional ◽  
Covalent Bonds ◽  
2D Layered Materials ◽  
Two Dimensional Materials ◽  
Non Covalent Interactions ◽  
Heterostructure Devices

Abstract Since the discovery of graphene, two-dimensional (2D) layered materials have always been the focus of material research. The layers of 2D materials are covalent bonds, and the layers are weakly bonded to adjacent layers through van der Waals (vdW) interactions. Since any dangling-bond-free surface could be combined with another material through vdW forces, the concept can be extended. This can refer to the integration of 2D materials with any other non-2D materials through non-covalent interactions. The emerging mixed-dimensional (2D+nD, where n is 0, 1 or 3) heterostructure devices has been studied and represents a wider range of vdW heterostructures. New electronic devices and optoelectronic devices based on such heterojunctions have unique functions. Therefore, this article depicts the research progress of (2D+nD, where n is 0, 1 or 3) vdW heterojunctions based on 2D materials.

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.

Flexible full two-dimensional memristive synapses of graphene/WSe2−xOy/graphene

2020 ◽  
Vol 22 (36) ◽  
pp. 20658-20664
Author(s):  
Hui-Kai He ◽  
Fan-Fan Yang ◽  
Rui Yang
Keyword(s):  
Van Der Waals ◽  
Atomic Level ◽  
Two Dimensional ◽  
Van Der Waals Heterostructures ◽  
Two Dimensional Materials ◽  
New Devices

van der Waals heterostructures realized by stacking different two-dimensional materials offer the possibility to design new devices with atomic-level precision.

scholarly journals Recent progress in the assembly of nanodevices and van der Waals heterostructures by deterministic placement of 2D materials

2018 ◽  
Vol 47 (1) ◽  
pp. 53-68 ◽  
Author(s):  
Riccardo Frisenda ◽  
Efrén Navarro-Moratalla ◽  
Patricia Gant ◽  
David Pérez De Lara ◽  
Pablo Jarillo-Herrero ◽  
...  
Keyword(s):  
Recent Progress ◽  
2D Materials ◽  
Van Der Waals ◽  
Layer By Layer ◽  
Two Dimensional ◽  
Van Der Waals Heterostructures ◽  
Two Dimensional Materials

Designer heterostructures can be assembled layer-by-layer with unmatched precision thanks to the recently developed deterministic placement methods to transfer two-dimensional materials.

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