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Scientific article
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English

Twist-Angle-Dependent Electronic Properties of Exfoliated Single Layer MoS2 on Au(111)

Published inNano letters, 3c02804
Publication date2023-10-16
First online date2023-10-16
Abstract

Synthetic materials and heterostructures obtained by the controlled stacking of exfoliated monolayers are emerging as attractive functional materials owing to their highly tunable properties. We present a detailed scanning tunneling microscopy and spectroscopy study of single layer MoS2-on-gold heterostructures as a function of the twist angle. We find that their electronic properties are determined by the hybridization of the constituent layers and are modulated at the moiré period. The hybridization depends on the layer alignment, and the modulation amplitude vanishes with increasing twist angle. We explain our observations in terms of a hybridization between the nearest sulfur and gold atoms, which becomes spatially more homogeneous and weaker as the moiré periodicity decreases with increasing twist angle, unveiling the possibility of tunable hybridization of electronic states via twist angle engineering.

eng
Keywords
  • Au(111)
  • MoS2
  • Exfoliation
  • Heterostructures
  • Moiré
  • Scanning tunneling microscopy
  • Scanning tunneling spectroscopy
  • Twist angle
Research group
Citation (ISO format)
PUSHKARNA, Ishita, PASZTOR, Arpad, RENNER, Christoph. Twist-Angle-Dependent Electronic Properties of Exfoliated Single Layer MoS<sub>2</sub> on Au(111). In: Nano letters, 2023, p. 3c02804. doi: 10.1021/acs.nanolett.3c02804
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ISSN of the journal1530-6984
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Technical informations

Creation10/19/2023 11:48:19 AM
First validation10/30/2023 10:14:18 AM
Update time11/01/2023 12:44:48 PM
Status update11/01/2023 12:44:48 PM
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