Colored ink dip-pen nanolithography

Ming Su*, Vinayak P. Dravid

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

61 Scopus citations


Colored ink dip-pen nanolithography (DPN) is demonstrated by the direct patterning of organic dyes on substrates to generate optically active and arbitrarily shaped nanostructures with dimensions well below 200 nm in a straightforward manner. The dye nanopatterns are indeed optically active as confirmed by fluorescence emission under external pumping. The efficiency of patterning organic materials on bare and chemically modified Si/SiOx substrates reaffirms that DPN patterning of organic molecules can be done without covalent linkages, and points to importance of noncovalent interactions in DPN. The method can be extended to direct patterning of many colored/colorless organic molecules, and should open many opportunities for miniaturized optical devices and site-specific biological staining.

Original languageEnglish (US)
Pages (from-to)4434-4436
Number of pages3
JournalApplied Physics Letters
Issue number23
StatePublished - Jun 10 2002

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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