Journal
ACS NANO
Volume 3, Issue 10, Pages 3115-3121Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nn901030x
Keywords
scanning tunneling microscopy; self-assembled monolayers; barrier height; molecular tilt; sulfur-gold interface
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Funding
- Department of Energy
- National Science Foundation
- Air Force Office of Scientific Research
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [1041943] Funding Source: National Science Foundation
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We have simultaneously imaged the chemically bound head groups and exposed tail groups in bicomponent alkanethiolate self-assembled monolayers on Au{111} with molecular resolution. This has enabled us to resolve the controversy of scanning tunneling microscopy image interpretation and to measure the molecular polar tilt and azimuthal angles. Our local measurements demonstrate that ordered domains with, different superstructures also have varied buried sulfur head group structures.
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