Alignment of Gold Nanorods in Polymer Composites and on Polymer Surfaces


  • We thank R. Prozorov for the use of the optical microscope, M. L. Myrick for the use of the scanning probe microscope, and the University of South Carolina for funding.


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Alignment of gold nanorods incorporated into bulk polymers and imprinted at polymer surfaces by mechanical stretching is presented. Alignment of aspect-ratio-4.4 and -16 nanorods along the stretch direction is determined using polarized absorption spectroscopy, Rayleigh light scattering, and AFM (see Figure). Polymer film stretching is shown to be a simple approach to controlling nanorod orientation on surfaces and within bulk polymeric materials.