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Generation of Surface Amino Groups on Aromatic Self-Assembled Monolayers by Low Energy Electron Beams—A First Step Towards Chemical Lithography
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EngineeringMolecular Self-assemblyChemistryChemical EngineeringBeam LithographyDefined Surface PatterningNanolithography MethodMaterials SciencePhotochemistryFunctional SurfaceNanotechnologySurface Amino GroupsNitro-arene-thiol MonolayersSurface FunctionalizationMicrofabricationSurface ChemistrySelf-assemblySurface ScienceApplied PhysicsNatural SciencesCopper GridAromatic Self-assembled MonolayersNanofabricationMolecule-based Material
Chemically defined surface patterning has been achieved via irradiation with low-energy electrons. Irradiation of nitro-arene-thiol monolayers leads to the reduction of the nitro groups to amino groups, which can then be further chemically modified. The Figure shows such a monolayer that was irradiated through a copper grid followed by acylation with trifluoroacetic acid anhydride.