Get access
Advertisement

Self-Assembly of Single-Walled Carbon Nanotubes into a Sheet by Drop Drying

Authors

  • R. Duggal,

    1. Department of Chemical and Biomolecular Engineering and Center for Nanoscale Science and Technology and Center for Biological and Environmental Nanotechnology, Rice University, MS362, 6100 Main St., Houston, TX 77005, USA
    Search for more papers by this author
  • F. Hussain,

    1. Department of Mechanical Engineering, University of Houston, Houston, TX 77204, USA
    Search for more papers by this author
  • M. Pasquali

    1. Department of Chemical and Biomolecular Engineering and Center for Nanoscale Science and Technology and Center for Biological and Environmental Nanotechnology, Rice University, MS362, 6100 Main St., Houston, TX 77005, USA
    Search for more papers by this author

  • The authors thank P. E. Laibinis, C. A. Miller, R. Sharma, M. S. Wong, C. D. Armeniades, J. M. Tour, J. Stephenson, S. Agarwal, and W. V. Knowles. We also thank R. E. Smalley and R. H. Hauge for providing the SWNT samples. We thank especially E. A. Whitsitt for SEM images, N. G. Parra-Vasquez for preparing the SWNT sample, and V. A. Davis for Raman microscopy and helpful discussions. This work was supported by the National Science Foundation through grant CTS-CAREER 0134389 and by the NSF Center for Biological and Environmental Nanotechnology (EEC-0118007). Supporting Information is available online from Wiley InterScience or from the author.

Abstract

original image

Drops of a suspension of individual single-walled carbon nanotubes in F68 Pluronic surfactant dry on glass substrates to form a “crust” at the free surface. The crust is extremely thin (∼ 100 nm) and consists of an entangled mesh of nanotubes and Pluronic. The convective flow associated with the drying preferentially assembles the nanotube-Pluronic micelles into a hexagonal arrangement, as revealed by birefringent patterns (see Figure and Cover).

Get access to the full text of this article

Ancillary