Département de chimie moléculaire

900- and 100-nm-diam. polystyrene beads were combined with electrogenerated photosensitive poly-[tris(4,4-bis(3-pyrrol-1-ylpropyloxy)bipyridinyl)ruthenium(II)], (poly-[RuII-pyrrole]), metallopolymer on glassy carbon electrodes. Nanosphere lithog. (NSL) with 900-nm-diam. microbead mask affords the realization of a nanostructured polymer (after dissoln. of the polystyrene templates) with a typical highly-organized honeycomb nanostructure. NSL with 100-nm-diam.-nanobead mask allowed the achievement of a highly macroporous metallopolymer. The nanostructured Ru(II)-based metallopolymer was characterized by 3D laser scanning confocal microscopy and SEM (SEM). Electrochem. and photoelectrochem. studies demonstrate the enhancement of redox probe diffusion in the polymer layer for nanopatterned poly-[RuII-pyrrole]. This is accompanied with photocurrent enhancement for nanostructured polymer, esp. in the case of poly-[RuII-pyrrole] obtained by the 100 nm-nanobead NSL. [on SciFinder(R)]