Femtosecond ultrafast pulse generation with high-quality 2H-TaS2 nanosheets via top-down empirical approach

Nanoscale ◽  
2021 ◽  
Author(s):  
Qiang Yu ◽  
Shun Wang ◽  
Yan Zhang ◽  
Zhuo Dong ◽  
Haiqin Deng ◽  
...  
Keyword(s):  
Transition Metal ◽  
Phase Diagrams ◽  
Carrier Concentration ◽  
Layered Structure ◽  
Pulse Generation ◽  
Transition Metal Dichalcogenide ◽  
Top Down ◽  
High Quality ◽  
Rich Phase ◽  
Ultrafast Pulse Generation

Tantalum disulfide (TaS2), an emerging group VB transition metal dichalcogenide, with unique layered structure, rich phase diagrams, semimetallic behavior, higher carrier concentration and mobility is emerging as a prototype for...

scholarly journals Sequential bottom-up and top-down processing for the synthesis of transition metal dichalcogenide nanosheets: the case of rhenium disulfide (ReS2)

2016 ◽  
Vol 52 (50) ◽  
pp. 7878-7881 ◽  
Author(s):  
Naktal Al-Dulaimi ◽  
Edward A. Lewis ◽  
David J. Lewis ◽  
Simon K. Howell ◽  
Sarah J. Haigh ◽  
...  
Keyword(s):  
Chemical Vapor Deposition ◽  
Liquid Phase ◽  
Transition Metal ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Transition Metal Dichalcogenide ◽  
Top Down ◽  
Bottom Up ◽  
Liquid Phase Exfoliation ◽  
Methyl Pyrrolidone

Bottom-up (aerosol-assisted chemical vapor deposition, AACVD) and top-down (liquid phase exfoliation, LPE) processing methodologies are used in tandem to produce colloids of few-layer thick rhenium disulfide (ReS2) in N-methyl pyrrolidone.

Scalable synthesis of high-quality transition metal dichalcogenide nanosheets and their application as sodium-ion battery anodes

2016 ◽  
Vol 4 (44) ◽  
pp. 17370-17380 ◽  
Author(s):  
Jingwen Zhou ◽  
Jian Qin ◽  
Lichao Guo ◽  
Naiqin Zhao ◽  
Chunsheng Shi ◽  
...  
Keyword(s):  
Transition Metal ◽  
Crystalline Structure ◽  
Large Scale ◽  
Sodium Ion ◽  
Sodium Ion Battery ◽  
Transition Metal Dichalcogenide ◽  
High Quality ◽  
Single Crystalline ◽  
Scalable Synthesis

High-quality 2D WS2, MoS2, MoSe2 and WSe2 nanosheets with a single-crystalline structure have been synthesized on a large scale by a NaCl template-assisted strategy.

scholarly journals Seeded growth of high-quality transition metal dichalcogenide single crystals via chemical vapor transport

CrystEngComm ◽  
2020 ◽  
Vol 22 (46) ◽  
pp. 8017-8022
Author(s):  
Hao Li ◽  
Junku Liu ◽  
Nan Guo ◽  
Lin Xiao ◽  
Haoxiong Zhang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Single Crystals ◽  
Chemical Vapor ◽  
Vapor Transport ◽  
Chemical Vapor Transport ◽  
Transition Metal Dichalcogenide ◽  
Seeded Growth ◽  
High Quality ◽  
Short Period

Seeded chemical vapor transport growth gives high-quality and millimeter-sized transition metal dichalcogenide single crystals in a short period.

Aluminium-Transition Metal Thin-Film Reactions

1988 ◽  
Vol 119 ◽  
Author(s):  
E. G. Colgan ◽  
J. W. Mayer
Keyword(s):  
Thin Film ◽  
Transition Metal ◽  
Literature Review ◽  
Phase Diagrams ◽  
Phase Formation ◽  
Systematic Study ◽  
Initial Phase ◽  
Noble Metals ◽  
Rich Phase ◽  
Subsequent Phase

AbstractA systematic study of Al/metal reactions has been performed. The thin-film interactions of Al with refractory metals (Ti, V, Ta, Cr, Mo, W and Co) and near-noble metals (Ni, Pd, and Pt) have been investigated. The initial aluminide phases to grow are the Al-rich phases: TiAl3, Val3, TaAl3, Cr2Al13, MoAl12, Wal12, Co2Al9, NiAl3, Pd2Al3, and Pt2Al3 at temperatures between 225 and 525°C. With the exceptions of Val3, Pd2Al3, and Pt2Al3. these are the most Al-rich phases on the phase diagrams. Marker experiments were performed and Al was the dominant diffusing species during the growth of these phases, TiAl3, Val3, Cr2Al3, MoAl12, Co2Al2, NiAl3, Pd2Al3, and Pt2AI3. Consistent with the faster Al diffusion, which provides a greater supply of Al to the growing interface, is the growth of the most Al-rich phase initially. For the exceptions to this rule, Val3, Pd2AI3, and Pt2 Al3, the complexity of the Al-rich V, Pd, and Pt end phases may have hindered nucleation, resulting in the growth of the observed phases. The subsequent phase formation was examined in the Ni-, Pd-, and Pt-Al systems. After initial phase formation consumed all the Al or metal, subsequent phases formed in accordance with the overall stoichiometry. The results of this study, along with a brief literature review, are presented and the generalized behavior of Al/transition metal reactions discussed.

scholarly journals Effect of substitution on the superconducting phase of transition metal dichalcogenide Nb(Se$$_{x}$$S$$_{1-x}$$)$$_{2}$$ van der Waals layered structure

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Prutthipong Tsuppayakorn-aek ◽  
Prayoonsak Pluengphon ◽  
Piya Phansuke ◽  
Burapat Inceesungvorn ◽  
Wutthikrai Busayaporn ◽  
...  
Keyword(s):  
Transition Metal ◽  
Layered Structure ◽  
Electronic Band Structure ◽  
Van Der Waals ◽  
Transition Metal Dichalcogenide ◽  
Superconducting Transition ◽  
Electronic Band ◽  
Anisotropic Superconductivity ◽  
Structure Density ◽  
Eliashberg Spectral Function

AbstractBy means of first-principles cluster expansion, anisotropic superconductivity in the transition metal dichalcogenide Nb(Se$$_{x}$$ x S$$_{1-x}$$ 1 - x )$$_{2}$$ 2 forming a van der Waals (vdW) layered structure is observed theoretically. We show that the Nb(Se$$_{0.5}$$ 0.5 S$$_{0.5}$$ 0.5 )$$_{2}$$ 2 vdW-layered structure exhibits minimum ground-state energy. The Pnnm structure is more thermodynamically stable when compared to the 2H–NbSe$$_{2}$$ 2 and 2H–NbS$$_{2}$$ 2 structures. The characteristics of its phonon dispersions confirm its dynamical stability. According to electronic properties, i.e., electronic band structure, density of states, and Fermi surface indicate metallicity of Nb(Se$$_{0.5}$$ 0.5 S$$_{0.5}$$ 0.5 )$$_{2}$$ 2 . The corresponding superconductivity is then investigated through the Eliashberg spectral function, which gives rise to a superconducting transition temperature of 14.5 K. This proposes a remarkable improvement of superconductivity in this transition metal dichalcogenide.

A Facile and Universal Top-Down Method for Preparation of Monodisperse Transition-Metal Dichalcogenide Nanodots

2015 ◽  
Vol 54 (18) ◽  
pp. 5425-5428 ◽  
Author(s):  
Xiao Zhang ◽  
Zhuangchai Lai ◽  
Zhengdong Liu ◽  
Chaoliang Tan ◽  
Ying Huang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Transition Metal Dichalcogenide ◽  
Top Down

High-quality single-layer nanosheets of MS2(M = Mo, Nb, Ta, Ti) directly exfoliated from AMS2(A = Li, Na, K) crystals

2017 ◽  
Vol 5 (24) ◽  
pp. 5977-5983 ◽  
Author(s):  
Chenguang Guo ◽  
Hui Li ◽  
Wei Zhao ◽  
Jie Pan ◽  
Tianquan Lin ◽  
...  
Keyword(s):  
Transition Metal ◽  
Transport Properties ◽  
Single Layer ◽  
General Strategy ◽  
Transition Metal Dichalcogenide ◽  
High Quality

A novel general strategy is developed to obtain high-quality transition metal dichalcogenide nanosheets with excellent transport properties.

A Facile and Universal Top-Down Method for Preparation of Monodisperse Transition-Metal Dichalcogenide Nanodots

2015 ◽  
Vol 127 (18) ◽  
pp. 5515-5518 ◽  
Author(s):  
Xiao Zhang ◽  
Zhuangchai Lai ◽  
Zhengdong Liu ◽  
Chaoliang Tan ◽  
Ying Huang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Transition Metal Dichalcogenide ◽  
Top Down
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