Unique interfacial thermodynamics of few-layer 2D MoS2 for (photo)electrochemical catalysis
نویسندگان
چکیده
منابع مشابه
Phonons in single-layer and few-layer MoS2 and WS2
We report ab initio calculations of the phonon dispersion relations of the single-layer and bulk dichalcogenides MoS2 and WS2. We explore in detail the behavior of the Raman-active modes A1g and E1 2g as a function of the number of layers. In agreement with recent Raman spectroscopy measurements [C. Lee et al., ACS Nano 4, 2695 (2010)], we find that the A1g mode increases in frequency with an i...
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Hongyan Shi, Rusen Yan, Simone Bertolazzi,^ Jacopo Brivio,^ Bo Gao, Andras Kis,^ Debdeep Jena, Huili Grace Xing, and Libai Huang* Radiation Laboratory and Department of Electrical Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States, Department of Physics, Harbin Institute of Technology, Harbin, China, and ^Electrical Engineering Institute, Ecole Polytechnique Federal...
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When mechanically exfoliated two-dimensional (2D) materials are used for device applications, their properties strongly depend on the geometry and number of layers present in the flake. In general, these properties cannot be modified once a device has been fabricated out of an exfoliated flake. In this work we present a novel nano-patterning method for 2D material based devices, Pulsed eBeam Ga...
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Physical vapour deposition of Mo on an FeS2{100} surface was performed at 170 K. Near-epitaxial growth of MoS2(0001) overlayers of the order of 1 nm thickness was observed when the Mo-covered substrate was subsequently heated to 600 K.
متن کاملUltrafast carrier thermalization and cooling dynamics in few-layer MoS2.
Femtosecond optical pump-probe spectroscopy with 10 fs visible pulses is employed to elucidate the ultrafast carrier dynamics of few-layer MoS2. A nonthermal carrier distribution is observed immediately following the photoexcitation of the A and B excitonic transitions by the ultrashort, broadband laser pulse. Carrier thermalization occurs within 20 fs and proceeds via both carrier-carrier and ...
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ژورنال
عنوان ژورنال: Energy & Environmental Science
سال: 2019
ISSN: 1754-5692,1754-5706
DOI: 10.1039/c9ee00513g