Directing semiconductor nanorod assembly into 1D or 2D supercrystals by altering the surface charge

Coulomb repulsion due to the surface charge on semi-conductor nanorods works against the dipole–dipole attraction that tends to direct the nanorods to self-assemble; the nature of this self-assembly for CdSe nanorods can be thus altered by pyridine washing, which charges the rods surface—thereby allowing the Coulomb repulsion to tailor the alignment.Science Foundation IrelandEmbargo until August 2011 - AV 10/01/2011 Reinstated 21/09/09/2011 O