Monolayer resist for patterned contact printing of aligned nanowire arrays

J Am Chem Soc. 2009 Feb 18;131(6):2102-3. doi: 10.1021/ja8099954.

Abstract

Large-area, patterned printing of nanowires by using fluorinated self-assembled monolayers as the resist layer is demonstrated. By projecting a light pattern on the surface of the monolayer resist in an oxygen-rich environment, sticky and nonsticky regions on the surface are directly defined in a single-step process which then enables the highly specific and patterned transfer of the nanowires by the contact printing process, without the need for a subsequent lift-off step. This work demonstrates a simple route toward scalable, patterned printing of nanowires on substrates by utilizing light-tunable, nanoscale chemical interactions and demonstrates the versatility of molecular monolayers for use as a resist layer.