A general way to fabricate transition metal dichalcogenide/oxide-sandwiched MXene nanosheets as flexible film anodes for high-performance lithium storage

2019 ◽  
Vol 3 (10) ◽  
pp. 2577-2582 ◽  
Author(s):  
Chuang Wang ◽  
Xiao-Dong Zhu ◽  
Ke-Xin Wang ◽  
Liang-Liang Gu ◽  
Sheng-You Qiu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Lithium Ion Battery ◽  
High Performance ◽  
Composite Films ◽  
Transition Metal Dichalcogenides ◽  
Lithium Ion ◽  
Transition Metal Dichalcogenide ◽  
Lithium Storage ◽  
Flexible Film ◽  
Metal Dichalcogenides

Composite films comprising MXene nanosheets sandwiched by transition metal dichalcogenides/oxides are constructed as flexible lithium-ion battery anodes through vacuum-assisted filtration.

Mesoporous transition metal dichalcogenide ME2 (M = Mo, W; E = S, Se) with 2-D layered crystallinity as anode materials for lithium ion batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (17) ◽  
pp. 14253-14260 ◽  
Author(s):  
Yoon Yun Lee ◽  
Gwi Ok Park ◽  
Yun Seok Choi ◽  
Jeong Kuk Shon ◽  
Jeongbae Yoon ◽  
...  
Keyword(s):  
Transition Metal ◽  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Transition Metal Dichalcogenides ◽  
Lithium Ion ◽  
Electrochemical Performances ◽  
Transition Metal Dichalcogenide ◽  
Lithium Storage ◽  
Metal Dichalcogenides

Mesoporous transition metal dichalcogenides with 2D layered crystallinity, synthesized through a melting-infiltration assisted nano-replication, exhibit excellent electrochemical performances for lithium-storage.

scholarly journals Strategies for improving the lithium-storage performance of 2D nanomaterials

2017 ◽  
Vol 5 (3) ◽  
pp. 389-416 ◽  
Author(s):  
Jun Mei ◽  
Yuanwen Zhang ◽  
Ting Liao ◽  
Ziqi Sun ◽  
Shi Xue Dou
Keyword(s):  
Transition Metal ◽  
High Performance ◽  
Electrode Materials ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
Clean Energy ◽  
Transition Metal Dichalcogenide ◽  
Lithium Storage ◽  
Storage Performance ◽  
2D Nanomaterials

Abstract 2D nanomaterials, including graphene, transition metal oxide (TMO) nanosheets, transition metal dichalcogenide (TMD) nanosheets, etc., have offered an appealing and unprecedented opportunity for the development of high-performance electrode materials for lithium-ion batteries (LIBs). Although significant progress has been made on 2D nanomaterials for LIB applications in the recent years, some major challenges still exist for the direct use of these sheet-like nanomaterials, such as their serious self-agglomerating tendency during electrode fabrication and low conductivity as well as the large volume changes over repeated charging–discharging cycles for most TMOs/TMDs, which have resulted in large irreversible capacity, low initial Coulombic efficiency and fast capacity fading. To address these issues, considerable progress has been made in the exploitation of 2D nanosheets for enhanced lithium storage. In this review, we intend to summarize the recent progress on the strategies for enhancing the lithium-storage performance of 2D nanomaterials, including hybridization with conductive materials, surface/edge functionalization and structural optimization. These strategies for manipulating the structures and properties of 2D nanomaterials are expected to meet the grand challenges for advanced nanomaterials in clean energy applications and thus provide access to exciting materials for achieving high-performance next-generation energy-storage devices.

Highly electroconductive and uniform WS2 film growth by sulfurization of W film using diethyl sulfide

2021 ◽  
Author(s):  
Yoobeen Lee ◽  
Jin Won Jung ◽  
Jin Seok Lee
Keyword(s):  
Transition Metal ◽  
Grain Boundaries ◽  
High Performance ◽  
Film Growth ◽  
Transition Metal Dichalcogenides ◽  
Electronic Systems ◽  
Intrinsic Defects ◽  
Diethyl Sulfide ◽  
Metal Dichalcogenides

The reduction of intrinsic defects, including vacancies and grain boundaries, remains one of the greatest challenges to produce high-performance transition metal dichalcogenides (TMDCs) electronic systems. A deeper comprehension of the...

scholarly journals Second-harmonic generation enhancement in monolayer transition-metal dichalcogenides by using an epsilon-near-zero substrate

2021 ◽  
Vol 3 (1) ◽  
pp. 272-278
Author(s):  
Pilar G. Vianna ◽  
Aline dos S. Almeida ◽  
Rodrigo M. Gerosa ◽  
Dario A. Bahamon ◽  
Christiano J. S. de Matos
Keyword(s):  
Dielectric Constant ◽  
Transition Metal ◽  
Harmonic Generation ◽  
Nonlinear Effect ◽  
Second Harmonic ◽  
2D Materials ◽  
Transition Metal Dichalcogenides ◽  
Transition Metal Dichalcogenide ◽  
Metal Dichalcogenides ◽  
Epsilon Near Zero

The scheme illustrates a monolayer transition-metal dichalcogenide on an epsilon-near-zero substrate. The substrate near-zero dielectric constant is used as the enhancement mechanism to maximize the SHG nonlinear effect on monolayer 2D materials.

scholarly journals High-performance flexible nanoscale transistors based on transition metal dichalcogenides

2021 ◽  
Author(s):  
Alwin Daus ◽  
Sam Vaziri ◽  
Victoria Chen ◽  
Çağıl Köroğlu ◽  
Ryan W. Grady ◽  
...  
Keyword(s):  
Transition Metal ◽  
High Performance ◽  
Transition Metal Dichalcogenides ◽  
Metal Dichalcogenides ◽  
Nanoscale Transistors

scholarly journals Author Correction: Lithium-ion electrolytic substrates for sub-1V high-performance transition metal dichalcogenide transistors and amplifiers

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Md Hasibul Alam ◽  
Zifan Xu ◽  
Sayema Chowdhury ◽  
Zhanzhi Jiang ◽  
Deepyanti Taneja ◽  
...  
Keyword(s):  
Transition Metal ◽  
High Performance ◽  
Lithium Ion ◽  
Transition Metal Dichalcogenide

Size-dependent phase stability in transition metal dichalcogenide nanoparticles controlled by metal substrates

Nanoscale ◽  
2021 ◽  
Author(s):  
Albert Bruix ◽  
Jeppe Vang Lauritsen ◽  
Bjork Hammer
Keyword(s):  
Transition Metal ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Phase Stability ◽  
Transition Metal Dichalcogenides ◽  
Transition Metal Dichalcogenide ◽  
Metal Substrates ◽  
Size Dependent ◽  
Metal Dichalcogenides

Nanomaterials based on MoS2 and related transition metal dichalcogenides are remarkably versatile; MoS2 nanoparticles are proven catalysts for processes such as hydrodesulphurization and the hydrogen evolution reaction, and transition metal...

Double Transition-Metal Chalcogenide as a High-Performance Lithium-Ion Battery Anode Material

2014 ◽  
Vol 53 (46) ◽  
pp. 17901-17908 ◽  
Author(s):  
Dongyun Chen ◽  
Ge Ji ◽  
Bo Ding ◽  
Yue Ma ◽  
Baihua Qu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Lithium Ion Battery ◽  
Anode Material ◽  
High Performance ◽  
Lithium Ion ◽  
Metal Chalcogenide ◽  
Double Transition ◽  
Battery Anode

scholarly journals Robust trap effect in transition metal dichalcogenides for advanced multifunctional devices

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Lei Yin ◽  
Peng He ◽  
Ruiqing Cheng ◽  
Feng Wang ◽  
Fengmei Wang ◽  
...  
Keyword(s):  
Transition Metal ◽  
High Performance ◽  
Infrared Detector ◽  
Transition Metal Dichalcogenides ◽  
Two Dimensional ◽  
Electric Transport ◽  
Defect Engineering ◽  
Fast Switching ◽  
Metal Dichalcogenides ◽  
Poor Stability

Abstract Defects play a crucial role in determining electric transport properties of two-dimensional transition metal dichalcogenides. In particular, defect-induced deep traps have been demonstrated to possess the ability to capture carriers. However, due to their poor stability and controllability, most studies focus on eliminating this trap effect, and little consideration was devoted to the applications of their inherent capabilities on electronics. Here, we report the realization of robust trap effect, which can capture carriers and store them steadily, in two-dimensional MoS2xSe2(1-x) via synergistic effect of sulphur vacancies and isoelectronic selenium atoms. As a result, infrared detection with very high photoresponsivity (2.4 × 105 A W−1) and photoswitching ratio (~108), as well as nonvolatile infrared memory with high program/erase ratio (~108) and fast switching time, are achieved just based on an individual flake. This demonstration of defect engineering opens up an avenue for achieving high-performance infrared detector and memory.

scholarly journals Exciton g-factors in monolayer and bilayer WSe2 from experiment and theory

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Jonathan Förste ◽  
Nikita V. Tepliakov ◽  
Stanislav Yu. Kruchinin ◽  
Jessica Lindlau ◽  
Victor Funk ◽  
...  
Keyword(s):  
Transition Metal ◽  
Transition Metal Dichalcogenides ◽  
Transition Metal Dichalcogenide ◽  
Layer Transition ◽  
General Terms ◽  
Indirect Excitons ◽  
Metal Dichalcogenides ◽  
Experimental Findings ◽  
Experimental And Theoretical Studies

Abstract The optical properties of monolayer and bilayer transition metal dichalcogenide semiconductors are governed by excitons in different spin and valley configurations, providing versatile aspects for van der Waals heterostructures and devices. Here, we present experimental and theoretical studies of exciton energy splittings in external magnetic field in neutral and charged WSe2 monolayer and bilayer crystals embedded in a field effect device for active doping control. We develop theoretical methods to calculate the exciton g-factors from first principles for all possible spin-valley configurations of excitons in monolayer and bilayer WSe2 including valley-indirect excitons. Our theoretical and experimental findings shed light on some of the characteristic photoluminescence peaks observed for monolayer and bilayer WSe2. In more general terms, the theoretical aspects of our work provide additional means for the characterization of single and few-layer transition metal dichalcogenides, as well as their heterostructures, in the presence of external magnetic fields.

Sign in / Sign up

Export Citation Format

Share Document