Advanced Materials

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20_10b/2008Inside Front Cover: Differential Conductivity in Self-Assembled Nanodomains of a Diblock Copolymer Using Polystyrene-block-Poly(ferrocenylethylmethylsilane) (Adv. Mater. 10/2008)

The differential conductivity of the domains of a phase-segregated diblock copolymer film, polystyrene-block-poly ferrocenylethylmethylsilane (PS-b-PFEMS), is investigated using conducting-probe atomic force microscopy as reported by Gilbert Walker and co-workers on p. 1989. Analysis of PFEMS regions show asymmetric I-V behavior, and concomitant width increase with bias indicates filling of trap states. Here, the topography is shown to correlate with the current image when scanning with an applied voltage bias.

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