Journal
ACS NANO
Volume 9, Issue 2, Pages 1400-1407Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nn505761x
Keywords
chemical vapor deposition; microstructured nanofilm; self-assembled monolayer; nanocarpet; nanomembrane
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Funding
- BioInterfaces Program
- Nano Micro Facility at KIT
- Whitaker International Scholars Program
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The precise engineering of ultrathin nanofilms with variable functionality remains an unmet challenge in nanotechnology. We report a strategy for generating free-standing nanomembranes based on the selective chemical vapor deposition polymerization of functional [2.2]paracyclophanes on micropatterned self-assembled monolayers of alkanethiolates on gold. This fabrication strategy can yield microstructured nanofilms that are between 2 and 5 nm thick. Subsequent release from the substrate results in free-standing nanoscale membranes with controlled pore size and geometry. The process allows for modification of important functional parameters, such as ultrasmall membrane thickness, membrane pore geometry, and chemical functionality.
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