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Keywords:

  • adsorption;
  • anthraquinone;
  • molybdenum;
  • monolayers;
  • MoS2
Thumbnail image of graphical abstract

An Mo2S3 monolayer grown on copper coexists with well-known MoS2 patches and triangular islands. Imaging by scanning tunneling microscopy after exposure to anthraquinone shows the new structure to be far more active in adsorption, permitting even the formation of a compressed adsorbate layer before other surface areas, including the supposedly reactive brim areas of MoS2 islands, capture this adsorbate.