Colloidal crystal wires from directed assembly
2005 (English)In: Micro- and Nanosystems-Materials and Devices, Materials Research Society, 2005, 477-482 p.Conference paper (Refereed)
Colloidal crystal wires with tubular-like packings are prepared by the directed assembly of spheres into cylindrical one-dimensional channels. Silica spheres are infiltrated into porous silicon membranes, treated with silane, and annealed. Single annealing cycles are found to result in colloidal crystal wires with varied packing geometries, while repeated annealing produces a thin translucent silica sheath around the wires. Packing in the wires varies with the relative channel diameter of the silicon membrane where typical wires contain 4 to 7 helical strands. Both chiral and achiral packing geometries are observed. The fabrication of these wires is discussed and the relationship between channel size and packing structure detailed.
Place, publisher, year, edition, pages
Materials Research Society, 2005. 477-482 p.
, Materials Research Society Symposium Proceedings, ISSN 0272-9172 ; 872
Annealing, Colloids, Crystals, Membranes, Porous silicon, Colloidal crystal wires, Tubular-like packings, Wire
IdentifiersURN: urn:nbn:se:kth:diva-156555ISI: 000234461000072ScopusID: 2-s2.0-30644472662ISBN: 1-55899-826-8OAI: oai:DiVA.org:kth-156555DiVA: diva2:767626
2005 Materials Research Society Spring Meeting, 28 March 2005 through 1 April 2005, San Francisco, CA, United States
QC 201412022014-12-022014-12-012014-12-02Bibliographically approved