Evidence of meniscus interface transport in dip-pen nanolithography: An annular diffusion model

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Abstract

Ring shaped dots were patterned with mercaptohexadecanoic acid ink by dip-pen nanolithography. These dots have an ink-free inner core surrounded by an inked annular region, making them different from the filled dots usually obtained. This suggests a different transport mechanism than the current hypothesis of bulk water meniscus transport. A meniscus interface ink transport model is proposed, and its general applicability is demonstrated by predicting the patterned dot radii of chemically diverse inks.

Original languageEnglish
Article number144703
JournalJournal of Chemical Physics
Volume125
Issue number14
DOIs
StatePublished - 2006

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