Identifying the mechanism of single-domain single-layer MoS2 growth on Au(111)

Moritz Ewert; Lars Buß; Jeppe V. Lauritsen; Jens Falta; Jan Ingo Flege

Identifying the mechanism of single-domain single-layer MoS2 growth on Au(111)

Materials Science 2021-05-10 v1 Other Condensed Matter

Authors: Moritz Ewert , Lars Buß , Jeppe V. Lauritsen , Jens Falta , Jan Ingo Flege

Abstract

The nucleation and growth of single-layer molybdenum disulfide single domain islands is investigated by in situ low-energy electron microscopy. We study the growth of micron-sized flakes and the correlated flattening process of the gold surface for three different elevated temperatures. Furthermore, the influence of surface step edges on the molybdenum disulfide growth process is revealed. We show that both island and underlying terrace grow simultaneously by pushing the surface step in the expansion process. Our findings point to an optimized growth procedure allowing for step-free single-domain single-layer islands of several micrometers in size, which is likely transferable to other transition metal dichalcogenides.

Keywords

MoS2 single-layer single-domain growth mechanism Au(111) low-energy electron microscopy transition metal dichalcogenides

Cite

@article{arxiv.2105.03294,
  title  = {Identifying the mechanism of single-domain single-layer MoS2 growth on Au(111)},
  author = {Moritz Ewert and Lars Buß and Jeppe V. Lauritsen and Jens Falta and Jan Ingo Flege},
  journal= {arXiv preprint arXiv:2105.03294},
  year   = {2021}
}

Identifying the mechanism of single-domain single-layer MoS2 growth on Au(111)

Abstract

Keywords

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