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Title: Tunneling electron induced chemisorption of copper phthalocyanine molecules on the Cu(111) surface

The adsorption of up to one monolayer (ML) of copper phthalocyanine (CuPc) molecules on a room temperature Cu(111) surface has been studied using scanning tunneling microscopy (STM). Below 1 ML the molecules are in a fluid state and are highly mobile on the surface. At 1 ML coverage the molecules coalesce into a highly ordered 2D crystal phase. At sub-ML coverages, chemisorption of individual CuPc molecules can be induced through exposure to tunneling electrons at a tunneling bias voltage exceeding a threshold value. This tunneling electron induced effect has been exploited to perform molecular STM lithography.
Authors:
;  [1]
  1. Department of Materials Science and Engineering, University of Toronto, Toronto, Ontario M5S 3E4 (Canada)
Publication Date:
OSTI Identifier:
22283111
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 7; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ADSORPTION; CHEMISORPTION; COPPER; COPPER COMPLEXES; COPPER COMPOUNDS; CRYSTAL STRUCTURE; CRYSTALS; ELECTRIC POTENTIAL; ELECTRONS; LAYERS; MOLECULES; PHTHALOCYANINES; SCANNING TUNNELING MICROSCOPY; SURFACES; TEMPERATURE RANGE 0273-0400 K; TUNNEL EFFECT