Polarization Properties and Switchable Assembly of Ultranarrow ZnSe Nanorods

Large-scale 3D assembly of 1D ZnSe nanorods into microstrings (see figure) by simple application of a dc electric field is reported. The ordered rods exhibit polarization perpendicular to their long axis in fluorescence emission, contrary to the randomly ordered rods. The switchable assembly into long-range microstructures with unique polarization behavior holds great promise for novel applications. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2089/2007/c2057_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.