Electrostatically driven Dip-pen nanolithography of conducting polymers

The deposition of nanoscale conducting polymer patterns on semiconductor surfaces using DPN was reported. It was shown that electrostatic interactions between water soluble ink materials and charged substrates can provide a significant driving force for the generation of stable DPN patterns on semiconductor surfaces. Characterization of the patterned conducting polymers was performed by LFM and electrochemical methods, the results of which were fully consistent with the conclusion that conducting polymer molecules can be successfully transported from the tip to these types of charged surfaces.