scholarly journals Broadband and ultrafast all-optical switching based on transition metal carbide

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Cong Wang ◽  
Lingfeng Gao ◽  
Hualong Chen ◽  
Yiquan Xu ◽  
Chunyang Ma ◽  
...  
Keyword(s):  
Transition Metal ◽  
Response Time ◽  
2D Materials ◽  
Optical Switches ◽  
Transition Metal Carbide ◽  
Saturable Absorption ◽  
Metal Carbide ◽  
Optical Device ◽  
Switching Energy ◽  
All Optical

Abstract Ultrafast all-optical switches have attracted considerable attention for breaking through the speed limitation of electric devices. However, ultrafast and high-efficiency all-optical switches based on two-dimensional (2D) materials can be achieved due to their strong nonlinear optical response and ultrafast carrier dynamic. For this reason, we propose the pump-probe method to achieve an ultrafast optical switcher with a response time of 192 fs and a switching energy of 800 nJ by using transition metal carbide (Nb2C). The response time and switching energy are far smaller than that of the all-optical device based on the saturable absorption effect of 2D materials. It is believed that the Nb2C-based all-optical switch provides a novel idea to achieve a high-performance all-optical device and has the potential for application in high-speed photonics processing.

scholarly journals True Nature of the Transition-Metal Carbide/Liquid Interface Determines Its Reactivity

ACS Catalysis ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 4920-4928
Author(s):  
Christoph Griesser ◽  
Haobo Li ◽  
Eva-Maria Wernig ◽  
Daniel Winkler ◽  
Niusha Shakibi Nia ◽  
...  
Keyword(s):  
Transition Metal ◽  
Liquid Interface ◽  
Transition Metal Carbide ◽  
Metal Carbide ◽  
True Nature

scholarly journals Solvent‐Assisted Anisotropic Cleavage of Transition Metal Carbide into 2D Nanoflakes

2021 ◽  
pp. 2100039
Author(s):  
Chen-Xia Hu ◽  
Zhen Tian ◽  
Qi Xiao ◽  
Zhen-Tong Zhu ◽  
Xiang-Yang Li ◽  
...  
Keyword(s):  
Transition Metal ◽  
Transition Metal Carbide ◽  
Metal Carbide

Tribo-mechanical properties of reactive magnetron sputtered transition metal carbide coatings

2017 ◽  
Vol 114 ◽  
pp. 234-244 ◽  
Author(s):  
D. Dinesh Kumar ◽  
N. Kumar ◽  
S. Kalaiselvam ◽  
R. Radhika ◽  
Arul Maximus Rabel ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Transition Metal ◽  
Transition Metal Carbide ◽  
Reactive Magnetron ◽  
Metal Carbide ◽  
Carbide Coatings

Durable Transition-Metal-Carbide-Supported Pt-Ru Anodes for Direct Methanol Fuel Cells

Fuel Cells ◽  
2012 ◽  
Vol 12 (1) ◽  
pp. 146-152 ◽  
Author(s):  
K. G. Nishanth ◽  
P. Sridhar ◽  
S. Pitchumani ◽  
A. K. Shukla
Keyword(s):  
Fuel Cells ◽  
Transition Metal ◽  
Direct Methanol Fuel Cells ◽  
Transition Metal Carbide ◽  
Metal Carbide ◽  
Direct Methanol ◽  
Methanol Fuel Cells

scholarly journals Solvent‐Assisted Anisotropic Cleavage of Transition Metal Carbide into 2D Nanoflakes

2021 ◽  
Vol 2 (11) ◽  
pp. 2170031
Author(s):  
Chen-Xia Hu ◽  
Zhen Tian ◽  
Qi Xiao ◽  
Zhen-Tong Zhu ◽  
Xiang-Yang Li ◽  
...  
Keyword(s):  
Transition Metal ◽  
Transition Metal Carbide ◽  
Metal Carbide

scholarly journals Combining Theory and Experiment for Multitechnique Characterization of Activated CO2 on Transition Metal Carbide (001) Surfaces

2018 ◽  
Vol 123 (13) ◽  
pp. 7567-7576 ◽  
Author(s):  
Christian Kunkel ◽  
Francesc Viñes ◽  
Pedro J. Ramírez ◽  
Jose A. Rodriguez ◽  
Francesc Illas
Keyword(s):  
Transition Metal ◽  
Transition Metal Carbide ◽  
Metal Carbide ◽  
Theory And Experiment

scholarly journals Transition Metal Carbide Core/Shell Nanoparticles by Ultra-Short Laser Ablation in Liquid

Nanomaterials ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 145 ◽  
Author(s):  
Angela De Bonis ◽  
Mariangela Curcio ◽  
Antonio Santagata ◽  
Agostino Galasso ◽  
Roberto Teghil
Keyword(s):  
Laser Ablation ◽  
Transition Metal ◽  
Organic Solvents ◽  
Transition Metal Carbide ◽  
Metal Carbide ◽  
Laser Ablation In Liquid ◽  
Shell Nanoparticles ◽  
Synthetic Strategy ◽  
Molybdenum Carbides ◽  
Wide Range

Transition metal carbide nanoparticles are a class of technological interesting materials with a wide range of applications. Among metal carbides, tantalum carbides have good compatibility with the biological environment while molybdenum carbides are used as catalyst in electrochemical reactions. Laser ablation of bulk transition metal targets in some liquids is here reported and laser ablation in organic solvents is used as simple synthetic strategy for the production of carbide nanostructures. Herein, the nanoparticles produced by ultra-short laser ablation of tantalum and molybdenum in water, acetone, ethanol and toluene have been characterized by TEM, XRD and XPS analysis. The combined effect of metal and solvent chemical and physical properties on the composition of the nanomaterials obtained has been pointed out. In particular, the different reactivity of Ta and Mo with respect to oxidizing species determines the composition of particles obtained in water, on the other hand the organic solvents decomposition allows to obtain transition metal carbide (TMC) nanoparticles. The observed carbonaceous shell formed on TMC allows to protect the particle’s carbidic core and to improve and tailor the applications of these nanomaterials.

Impact of Transition Metal Carbide and Nitride Supports on the Electronic Structure of Thin Platinum Overlayers

ACS Catalysis ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 7090-7098 ◽  
Author(s):  
Aaron Garg ◽  
Danielle S. Gonçalves ◽  
Yusu Liu ◽  
Zhenshu Wang ◽  
Linxi Wang ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Transition Metal ◽  
Transition Metal Carbide ◽  
Metal Carbide ◽  
Thin Platinum
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