AEI: Pattern stability in microcontact printed self assembled monolayers

COLL 120

Jennifer R. Hampton1, Rachel K. Smith1, Arrelaine A. Dameron1, Christina E. Inman2, James E. Hutchison2, and Paul S. Weiss1. (1) Departments of Chemistry and Physics, The Pennsylvania State University, 152 Davey Laboratory, University Park, PA 16802-6300, (2) Department of Chemistry and Materials Science Institute, University of Oregon, 1253 University of Oregon, Eugene, OR 97403-1253
We have used microcontact printing to pattern self assembled monolayers (SAMs) on Au{111} using a variety of molecules with different terminal groups and internal functionalities. The resulting patterned films were monitored over time with scanning tunneling and lateral force microscopies to examine the degree of order of the components and the overall pattern resolution. By varying the molecules used for the printed and backfilled regions of the SAM, we have explored the effect of intermolecular interactions on pattern lifetimes. Pattern stability is enhanced in films that have larger interactions between molecules in one component of the SAM.