Abstract：
:Transition Metal Dichalcogenides (TMDs) are one of the most studied two-dimensional materials in the last 5-10 years due to their extremely interesting layer dependent properties. Despite the presence of vast research work on TMDs, the complex relation between the electro-chemical and physical properties make them the subject of further research. Our main objective is to provide a better insight into the electronic structure of TMDs. This will help us better understand the stability of the bilayer post growth homo/hetero products based on the various edge-termination, and different stacking of the two layers. In this regard, two Tungsten (W) based non-periodic chalcogenide flakes (sulfides and selenides) were considered. An in-depth analysis of their different edge termination and stacking arrangement was performed via Density Functional Theory method using VASP software. Our finding indicates the preference of chalcogenide (c-) terminated structures over the metal (m-) terminated structures for both homo and heterobilayers, and thus strongly suggests the nonexistence of the m-terminated TMDs bilayer products.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Ghatak K,Kang KN,Yang EH,Datta Ddoi
10.1038/s41598-020-58149-6subject
Has Abstractpub_date
2020-02-03 00:00:00pages
1648issue
1issn
2045-2322pii
10.1038/s41598-020-58149-6journal_volume
10pub_type
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