Differential Conductivity in Self-Assembled Nanodomains of a Diblock Copolymer Using Polystyrene-block-Poly(ferrocenylethylmethylsilane)


  • The authors gratefully acknowledge financial support from NSF (CHE-0404579), ARO (W911NF-04-100191), ONR (N00014-05-1- 0765), CRC and NSERC. I.M. thanks the EU for a Marie Curie Chair and the Royal Society for a Wolfson Research Merit Award.


original image

The differential conductivity of the domains of a phase segregated diblock copolymer film, polystyrene-block-poly (ferrocenylethylmethylsilane) (PS-b-PFEMS), is described using conducting-probe atomic force microscopy. The schematic on the right depicts the experimental setup, and the image on the left is a representative current map of a 1 µm2 PS-b-PFEMS thin film on gold substrate, under an applied voltage bias of −9 V.