Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 125, Issue 20, Pages 11257-11261Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcc.1c02780
Keywords
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Funding
- Innovative Science and Technology Initiative for Security, ATLA, Japan [JPJ004596]
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Large-area two-dimensional MoSe2/WSe2 and WSe2/MoSe2 heterostructures have been successfully fabricated using molecular-beam epitaxy. Highly oriented heterostructures are composed of alternately stacked epitaxial MoSe2 and WSe2 monolayers on nearly stoichiometric substrates. The weakly bonded MoSe2 and WSe2 monolayers show stable C7 or T stacking configurations. Additionally, the four-layered heterostructures are achieved through the successive growth of MoSe2 and WSe2 monolayers.
Large-area two-dimensional MoSe2/WSe2 and WSe2/MoSe2 heterostructures have been successfully fabricated using molecular-beam epitaxy. Highly oriented heterostructures are composed of alternately stacked epitaxial MoSe2 and WSe2 monolayers (MLs) on Se-treated GaAs(111)B substrates with nearly stoichiometric compositions. The MoSe2 and WSe2 MLs are weakly bonded together and show either the stable C7 or the T stacking configuration, irrespective of the stacking order. We further demonstrate that the four-layered heterostructures are realized by the successive growth of MoSe2 and WSe2 MLs.
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