ESEM images of a top view of the self-ordered alumina template (Inset: cross section of the template), b PFO nanopillars after removing the template. c The chemical structure of a segment of a PFO chain in the β-phase conformation. The rotational angle between monomer units is fixed at 180°.
Palacios et al. Nanoscale Res Lett 2011 6:35 doi:10.1007/s11671-010-9788-6