Two-Dimensional Confinement of Nanorods in Block Copolymer Domains

Ranjan D. Deshmukh,† Yu Liu,† and Russell J. Composto*
Department of Materials Science and Engineering and Laboratory for Research on the Structure of Matter, University of Pennsylvania, Pennsylvania 19104-6272
Nano Lett., 2007, 7 (12), pp 3662–3668
DOI: 10.1021/nl071908r
Publication Date (Web): November 23, 2007
Copyright © 2007 American Chemical Society

Abstract

Abstract Image

Gold nanorods (NRs) self-orient during the self-assembly of a symmetric poly(styrene-b-methyl methacrylate) (PS-b-PMMA) film. The NRs are selectively sequestered and confined in lamellar PMMA domains, which are narrower than the NR length. This confinement orients 71% of NRs within ± 5° of the lamella plane. During solvent annealing, a gradient in the concentration of NRs is observed. This route to produce alternating layers containing conducting NRs separated by dielectric domains has the potential for fabricating self-assembled nanodevices.

View: Full Text HTML | Hi-Res PDF

Tools

SciFinder Links

SciFinder subscribers: Click to sign in | Not a SciFinder subscriber? Learn more at www.cas.org

Explore by:

History

  • Published In Issue December 12, 2007
  • Received August 3, 2007
    Revised Manuscript Received October 14, 2007

Recommend & Share

Related Content

Other ACS content by these authors: