Colloidal Crystal Wires (pages 2315–2318)
Michael Tymczenko, Lluis F. Marsal, Trifon Trifonov, Isabelle Rodriguez, Fernando Ramiro-Manzano, Josep Pallares, Angel Rodriguez, Ramon Alcubilla and Francisco Meseguer
Article first published online: 14 MAY 2008 | DOI: 10.1002/adma.200701526
Several configurations of colloidal wires are obtained by infiltration of charge-stabilized polystyrene spheres into cylindrical pores of a silicon membrane (see figure). As channel dimensions are comparable to those of particles, wirelike arrangements are governed by the ratio between the pore diameter and the particle diameter. Also, Coulomb repulsion between particles plays a very important role in the particle ordering.