Semiconductor Nanorod Liquid Crystals and Their Assembly on a Substrate


  • We thank Mario Yosa and Youli Li at the Material Research Laboratory (MRL) of University of California at Santa Barbara for the assistance in the X-ray scattering measurement. This work was supported in part by the Director, Office of Science, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering of the U.S. Department of Energy under Contract No. DE-AC03-76SF00098 and in part by the Air Force Office of Scientific Research under Grant No. F49620-01-1-0033.


The macroscopic alignment and superlattice structures of CdSe nanorods in a nematic liquid-crystalline (LC) phase are determined by the phases that form prior to complete solvent evaporation (e.g., vortex structures in linear arrays, see Figure). By controlling the phase of the LC solution and its orientation using pretreated surfaces or external fields, it may be possible to achieve fine control of order in deposited nanorod films.