Free-Standing Nanomembranes Based on Selective CVD Deposition of Functional Poly-p-xylylenes

  • chair:

    Bally, F. / Friedmann, C. / Heinke, L. / Arslan, H. / Azucena, C. / Welle, A. / Ross, A. / Wöll, C. / Lahann, J. (2015)
  • place:

    ACS Nano (2015)
  • Date: 2015

  • Bally, F. / Friedmann, C. / Heinke, L. / Arslan, H. / Azucena, C. / Welle, A. / Ross, A. / Wöll, C. / Lahann, J. (2015): „Free-Standing Nanomembranes Based on Selective CVD Deposition of Functional Poly-p-xylylenes“. In: ACS Nano (2015)

Abstract

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The precise engineering of ultrathin nanofilms with variable functionality remains an unmet challenge in nanotechnology. We report a strategy for generating free-standing nanomembranes based on the selective chemical vapor deposition polymerization of functional [2.2]paracyclophanes on micropatterned self-assembled monolayers of alkanethiolates on gold.

This fabrication strategy can yield microstructured nanofilms that are between 2 and 5 nm thick. Subsequent release from the substrate results in free-standing nanoscale membranes with controlled pore size and geometry. The process allows for modification of important functional parameters, such as ultrasmall membrane thickness, membrane pore geometry, and chemical functionality.