Dip-Pen Nanolithography: Controlling Surface Architecture on the Sub-100 Nanometer Length Scale

A new method for patterning surfaces with organic structures, termed "dip-pen" nanolithography (DPN), has been developed. DPN allows one to deliver collections of molecules to a surface in a positive printing mode. The technique offers 15 nm linewidths and 5 nm spatial resolution. Current capabilities and future applications of DPN are discussed.