Incommensurate transition-metal dichalcogenides via mechanochemical reshuffling of binary precursors.
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A new family of heterostructured transition-metal dichalcogenides (TMDCs) with incommensurate ("misfit") spatial arrangements of well-defined layers was prepared from structurally dissimilar single-phase 2H-MoS2 and 1T-HfS2 materials. The experimentally observed heterostructuring is energetically favorable over the formation of homogeneous multi-principle element dichalcogenides observed in related dichalcogenide systems of Mo, W, and Ta. The resulting three-dimensional (3D) heterostructures show semiconducting behavior with an indirect band gap around 1 eV, agreeing with values predicted from density functional theory. Results of this joint experimental and theoretical study open new avenues for generating unexplored metal-dichalcogenide heteroassemblies with incommensurate structures and tunable physical properties.
author list (cited authors)
Hlova, I. Z., Singh, P., Malynych, S. Z., Gamernyk, R. V., Dolotko, O., Pecharsky, V. K., ... Balema, V. P.
complete list of authors
Hlova, Ihor Z||Singh, Prashant||Malynych, Serhiy Z||Gamernyk, Roman V||Dolotko, Oleksandr||Pecharsky, Vitalij K||Johnson, Duane D||Arroyave, Raymundo||Pathak, Arjun K||Balema, Viktor P