Conduction current behavior during electrophoretic deposition of conductive polymer

Abstract

The electrical conduction current behavior during electrophoretic deposition of a fluorene-based conductive polymer, poly(9,9-dioctyl-2, 7-divinylenefloure nylene)-alt-{2-methoxy-5-(2-ethylhexyloxy)-1, 4-phenylene}], (PDOF-MEHPV), has been studied. Thin slab vessels provide a simple path for the colloidal particles during deposition as well as minimum suspension consumption, and the transient current behavior during the electrophoretic deposition from a suspension containing 1.0 g/l of the polymer in those vessels reveal clear breaks corresponding to the transit time. The electrophoretic mobility of the colloidal particles in the suspension has been estimated to be 7.0±0.6×10⁻ cm²V⁻¹s⁻¹. The deposition of a uniform film of the polymer over a 9cm-square utilizing the thin slab vessel has also been demonstrated.