Visualization and quantification of transition metal atomic mixing in Mo1−xWxS2 single layers
Open Access
- 15 January 2013
- journal article
- research article
- Published by Springer Science and Business Media LLC in Nature Communications
- Vol. 4 (1), 1351
- https://doi.org/10.1038/ncomms2351
Abstract
The alloying behaviour of materials is a well-known problem in all kinds of compounds. Revealing the heteroatomic distributions in two-dimensional crystals is particularly critical for their practical use as nano-devices. Here we obtain statistics of the homo- and heteroatomic coordinates in single-layered Mo1−xWxS2 from the atomically resolved scanning transmission electron microscope images and successfully quantify the degree of alloying for the transition metal elements (Mo or W). The results reveal the random alloying of this mixed dichalcogenide system throughout the chemical compositions (x=0 to 1). Such a direct route to gain an insight into the alloying degree on individual atom basis will find broad applications in characterizing low-dimensional heterocompounds and become an important complement to the existing theoretical methods.Keywords
This publication has 37 references indexed in Scilit:
- The hydrogenation and direct desulfurization reaction pathway in thiophene hydrodesulfurization over MoS2 catalysts at realistic conditions: A density functional studyJournal of Catalysis, 2007
- Hydrodesulfurization of dibenzothiophene over exfoliated MoS2 catalystCatalysis Today, 2006
- thin films prepared by solid state reaction (induced by annealing) between the constituents in thin film formJournal of Physics: Condensed Matter, 1996
- Superlubricity of molybdenum disulphidePhysical Review B, 1993
- Detailed photocurrent spectroscopy of the semiconducting group VIB transition metal dichalcogenidesThe Journal of Physical Chemistry, 1982
- The Role of Carrier Diffusion and Indirect Optical Transitions in the Photoelectrochemical Behavior of Layer Type d-Band SemiconductorsJournal of the Electrochemical Society, 1980
- Excitons in molybdenum disulphidePhysical Review B, 1975
- The role of cobalt and molybdenum sulphides in hydrodesulphurisation catalysts: A reviewJournal of the Less Common Metals, 1974
- Band Structures of Transition-Metal-Dichalcogenide Layer CompoundsPhysical Review B, 1973
- The transition metal dichalcogenides discussion and interpretation of the observed optical, electrical and structural propertiesAdvances in Physics, 1969