Collaborative compromise of two-dimensional materials in sodium ion capacitors: mechanisms and designing strategies

2021 ◽  
Vol 9 (13) ◽  
pp. 8129-8159
Author(s):  
Yingjun Jiang ◽  
Zhifang Liu ◽  
Songtao Guo ◽  
Libin Wang ◽  
Yaqian Li ◽  
...  
Keyword(s):  
2D Materials ◽  
Sodium Ion ◽  
Research Progress ◽  
Two Dimensional ◽  
Two Dimensional Materials

This review provides a comprehensive summary of the research progress of emerging 2D materials in sodium ion capacitors.

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 Recent advances in mode-locked fiber lasers based on two-dimensional materials

Nanophotonics ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 2315-2340 ◽  
Author(s):  
Junli Wang ◽  
Xiaoli Wang ◽  
Jingjing Lei ◽  
Mengyuan Ma ◽  
Cong Wang ◽  
...  
Keyword(s):  
Fiber Lasers ◽  
2D Materials ◽  
Synthesis Methods ◽  
Two Dimensional ◽  
New Materials ◽  
Saturable Absorbers ◽  
Operating Wavelength ◽  
Recent Advances ◽  
Two Dimensional Materials ◽  
Diverse Mode

AbstractDue to the unique properties of two-dimensional (2D) materials, much attention has been paid to the exploration and application of 2D materials. In this review, we focus on the application of 2D materials in mode-locked fiber lasers. We summarize the synthesis methods for 2D materials, fiber integration with 2D materials and 2D materials based saturable absorbers. We discuss the performance of the diverse mode-locked fiber lasers in the typical operating wavelength such as 1, 1.5, 2 and 3 μm. Finally, a summary and outlook of the further applications of the new materials in mode-locked fiber lasers are presented.

scholarly journals Nonlinear optical microscopies (NOMs) and plasmon-enhanced NOMs for biology and 2D materials

Nanophotonics ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 1341-1358
Author(s):  
Jialin Ma ◽  
Mengtao Sun
Keyword(s):  
Raman Scattering ◽  
Nonlinear Optical ◽  
Stimulated Raman Scattering ◽  
Second Harmonic ◽  
2D Materials ◽  
Research Progress ◽  
Two Photon ◽  
Two Dimensional Materials ◽  
Anti Stokes ◽  
Physical Principles

AbstractIn this review, we focus on the summary of nonlinear optical microscopies (NOMs), which are stimulated Raman scattering (SRS), coherent anti-Stokes Raman scattering (CARS), second harmonic generation (SHG), and two-photon excited fluorescence (TPEF). The introduction is divided into two parts: the principle of SRS, CARS, TPEF, and SHG and their application to biology and two-dimensional materials. We also introduce the connections and differences between them. We also discuss the principle of plasmon-enhanced NOM and its application in the above two aspects. This paper not only summarizes the research progress in the frontier but also deepens the readers’ understanding of the physical principles of these NOMs.

scholarly journals A Universal Atomic Substitution Conversion Strategy Towards Synthesis of Large-Size Ultrathin Nonlayered Two-Dimensional Materials

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Mei Zhao ◽  
Sijie Yang ◽  
Kenan Zhang ◽  
Lijie Zhang ◽  
Ping Chen ◽  
...  
Keyword(s):  
Theoretical Calculations ◽  
2D Materials ◽  
Direct Synthesis ◽  
Two Dimensional ◽  
Covalent Bonds ◽  
2D Layered Materials ◽  
Large Size ◽  
Two Dimensional Materials ◽  
Microfabrication Technique ◽  
Atomic Substitution

AbstractNonlayered two-dimensional (2D) materials have attracted increasing attention, due to novel physical properties, unique surface structure, and high compatibility with microfabrication technique. However, owing to the inherent strong covalent bonds, the direct synthesis of 2D planar structure from nonlayered materials, especially for the realization of large-size ultrathin 2D nonlayered materials, is still a huge challenge. Here, a general atomic substitution conversion strategy is proposed to synthesize large-size, ultrathin nonlayered 2D materials. Taking nonlayered CdS as a typical example, large-size ultrathin nonlayered CdS single-crystalline flakes are successfully achieved via a facile low-temperature chemical sulfurization method, where pre-grown layered CdI2 flakes are employed as the precursor via a simple hot plate assisted vertical vapor deposition method. The size and thickness of CdS flakes can be controlled by the CdI2 precursor. The growth mechanism is ascribed to the chemical substitution reaction from I to S atoms between CdI2 and CdS, which has been evidenced by experiments and theoretical calculations. The atomic substitution conversion strategy demonstrates that the existing 2D layered materials can serve as the precursor for difficult-to-synthesize nonlayered 2D materials, providing a bridge between layered and nonlayered materials, meanwhile realizing the fabrication of large-size ultrathin nonlayered 2D materials.

Molecular Functionalization of 2D-Materials: From Atomically Planar 2D Architectures to Off-Plane 3D Functional Materials

2021 ◽  
Author(s):  
Adam Brill ◽  
Elad Koren ◽  
Graham de Ruiter
Keyword(s):  
2D Materials ◽  
Functional Materials ◽  
Two Dimensional ◽  
The Past ◽  
Two Dimensional Materials

Atomically thin two-dimensional materials (2DMs) have moved in the past 15 years from a serendipitously isolated single-layered graphene curiosity to a near technological renaissance, where 2DMs such as graphene and...

Preparation of single-crystal metal substrates for the growth of high-quality two-dimensional materials

2021 ◽  
Vol 8 (1) ◽  
pp. 182-200
Author(s):  
Yanglizhi Li ◽  
Luzhao Sun ◽  
Haiyang Liu ◽  
Yuechen Wang ◽  
Zhongfan Liu
Keyword(s):  
Single Crystal ◽  
2D Materials ◽  
Controlled Growth ◽  
Two Dimensional ◽  
High Quality ◽  
Metal Substrates ◽  
Recent Advances ◽  
Two Dimensional Materials

Recent advances on preparing single-crystal metals and their crucial roles in controlled growth of high-quality 2D materials are reviewed.

2D materials towards ultrafast photonic applications

2020 ◽  
Vol 22 (39) ◽  
pp. 22140-22156
Author(s):  
Xin-Ping Zhai ◽  
Bo Ma ◽  
Qiang Wang ◽  
Hao-Li Zhang
Keyword(s):  
Optical Communications ◽  
2D Materials ◽  
Optical Limiting ◽  
Mode Locking ◽  
Optical Devices ◽  
Optical Modulation ◽  
Two Dimensional ◽  
Two Dimensional Materials ◽  
All Optical ◽  
Ultrafast Photonics

Two-dimensional materials are now excelling in yet another arena of ultrafast photonics, including optical modulation through optical limiting/mode-locking, photodetectors, optical communications, integrated miniaturized all-optical devices, etc.

scholarly journals Energy loss by fast-travelling charged particles traversing two-dimensional materials

2020 ◽  
Vol 233 ◽  
pp. 03005
Author(s):  
Jaime E. Santos ◽  
Mikhail Vasilevskiy ◽  
Nuno M.R. Peres ◽  
Antti-Pekka Jauho
Keyword(s):  
Thin Films ◽  
Energy Loss ◽  
2D Materials ◽  
Charged Particles ◽  
Monolayer Graphene ◽  
Two Dimensional ◽  
Particle Detection ◽  
Hydrodynamic Approximation ◽  
Radiation Losses ◽  
Two Dimensional Materials

We consider the problem of the radiation losses by fast-traveling particles traversing two-dimensional (2d) materials or thin films. After review¬ing the screening of electromagnetic fields by two dimensional conducting ma¬terials, we obtain the energy loss by a fast particle traversing such a material or film. In particular, we discuss the pattern of radiation emitted by monolayer graphene treated within a hydrodynamic approximation. These results are com¬pared with recent published results using similar approximations and, having in mind a potential application to particle detection, we briefly discuss how one can improve on the signals obtained by using other two-dimensional materials.

Fabrication of a three-terminal graphene nanoelectromechanical switch using two-dimensional materials

Nanoscale ◽  
2018 ◽  
Vol 10 (26) ◽  
pp. 12349-12355 ◽  
Author(s):  
Ngoc Huynh Van ◽  
Manoharan Muruganathan ◽  
Jothiramalingam Kulothungan ◽  
Hiroshi Mizuta
Keyword(s):  
Leakage Current ◽  
2D Materials ◽  
Two Dimensional ◽  
Subthreshold Slope ◽  
Drive Current ◽  
Exponential Increase ◽  
Two Dimensional Materials

An all-2D materials three-terminal subthermal subthreshold slope nanoelectromechanical (NEM) switch is realized to overcome the exponential increase in leakage current with an increase in the drive current of CMOS devices.

Applications of Raman spectroscopy in two-dimensional materials

2020 ◽  
Vol 13 (05) ◽  
pp. 2030010 ◽  
Author(s):  
Pengkun Yin ◽  
Qingyu Lin ◽  
Yixiang Duan
Keyword(s):  
Raman Spectroscopy ◽  
Type Strain ◽  
2D Materials ◽  
Interlayer Coupling ◽  
Two Dimensional ◽  
Physical Chemical ◽  
Two Dimensional Materials ◽  
Application Potential ◽  
Advanced Applications ◽  
Doping Type

At present, two-dimensional (2D) materials have shown great application potential in numerous fields based on their physical chemical and electronic properties. Raman spectroscopy and derivative techniques are effective tools for characterizing 2D materials. Raman spectroscopy conveys lots of knowledge on 2D materials, including layer number, doping type, strain and interlayer coupling. This review summarized advanced applications of Raman spectroscopy in 2D materials. The challenges and possible applied directions of Raman spectroscopy to 2D materials are discussed in detail.

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