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Epitaxial Two-dimensional Transition Metal Dichalcogenides

MoS2 monolayer on Au(111)

Epitaxially grown 2D MoS2 layers

MoS2 is, like graphite, a layered structure which can exist in single layer form. Unlike graphene, single-layer MoS2 has a nonzero bandgap qualifying it for use in 2-dimensional transistors and optoelectronic devices. In these studies we investigate the synthesis and properties of epitaxially grown "perfect" layers of MoS2. The samples allow for example detailed Angle-resolved Photoemission Spectroscopy studies (collaboration with Ph. Hofmann)

Sørensen, S. G.; Füchtbauer, H. G.; Tuxen, A. K.; Walton, A. S.; Lauritsen, J. V. "Structure and Electronic Properties of In Situ Synthesized Single-Layer MoS2 on a Gold Surface". ACS Nano 2014, 8, 6788-6796.

Miwa, J. A.; Ulstrup, S.; Sørensen, S. G.; Dendzik, M.; Čabo, A. G.; Bianchi, M.; Lauritsen, J. V.; Hofmann, P. Electronic Structure of Epitaxial Single-Layer MoS2. Phys. Rev. Lett. 2015, 114, 046802.