Shear-induced alignment in thin films of spherical nanodomains

Dan E. Angelescu, Judith H. Waller, Richard A. Register, Paul M. Chaikin

    Research output: Contribution to journalArticlepeer-review


    Shearing technique applied to thin films of sphere forming block copolymers (BCP) resulted in BCP dot-array templates with excellent long-range order was demonstrated. A two-layer-thick film of a polystyrene-block-poly(ethylene-alt- propylene) (PS-PEP) diblock copolymer was spin coated onto a polished Si substrate. The shear alignment in bilayer sphere-forming BCP films was found to be dependent on film thickness. The observed dependence of the alignment on layer thickness resulted from the confinement of the film between the substrate and the elastomer pad.

    Original languageEnglish (US)
    Pages (from-to)1878-1881
    Number of pages4
    JournalAdvanced Materials
    Issue number15
    StatePublished - Aug 4 2005

    ASJC Scopus subject areas

    • General Materials Science
    • Mechanics of Materials
    • Mechanical Engineering


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