title: Vertically Aligned and Ordered One-Dimensional Mesoscale Polyaniline.
abstract: The growth of vertically aligned and ordered polyaniline nanofilaments is controlled by potentiostatic polymerization through hexagonally packed and oriented mesoporous silica films. In such small pore template (2 nm in diameter), quasi-single PANI chains are likely to be produced. From chronoamperometric experiments and using films of various thicknesses (100-200 nm) it is possible to evidence the electropolymerization transients, wherein each stage of polymerization (induction period, growth, and overgrowth of polyaniline on mesoporous silica films) is clearly identified. The advantageous effect of mesostructured silica thin films as hard templates for the generation of isolated polyaniline nanofilaments is demonstrated from enhancement of the reversibility between the conductive and the nonconductive states of polyaniline and the higher electroactive surface areas displayed for all mesoporous silica/PANI composites. The possibility to control and tailor the growth of conducting polymer nanofilaments offers numerous opportunities for applications in various fields including energy, sensors and biosensors, photovoltaics, nanophotonics, or nanoelectronics.
authors.affiliation: CNRS-Université de Lorraine, LCPME UMR 7564 , 405 Rue de Vandoeuvre, 54600 Villers-lès-Nancy, France.
authors.forename: Alonso
authors.initials: A
authors.lastname: Gamero-Quijano
authors.affiliation: CNRS-Université de Lorraine, LCPME UMR 7564 , 405 Rue de Vandoeuvre, 54600 Villers-lès-Nancy, France.
authors.forename: Cheryl
authors.initials: C
authors.lastname: Karman
authors.affiliation: CNRS-Université de Lorraine, LCPME UMR 7564 , 405 Rue de Vandoeuvre, 54600 Villers-lès-Nancy, France.
authors.forename: Neus
authors.initials: N
authors.lastname: Vilà
authors.affiliation: CNRS-Université de Lorraine, LCPME UMR 7564 , 405 Rue de Vandoeuvre, 54600 Villers-lès-Nancy, France.
authors.forename: Grégoire
authors.initials: G
authors.lastname: Herzog
authors.affiliation: CNRS-Université de Lorraine, LCPME UMR 7564 , 405 Rue de Vandoeuvre, 54600 Villers-lès-Nancy, France.
authors.forename: Alain
authors.identifier: 0000-0003-3633-200X
authors.initials: A
authors.lastname: Walcarius