Reductive-oxidation electrogenerated chemiluminescence (ECL) generation at a transparent silver nanowire electrode

We present the fabrication of a conductive, transparent electrode composed of Ag nanowires (NW) for spectroelectrochemical studies. Reductive-oxidation electrogenerated chemiluminescence (ECL) of Ru(bpy)3(2+) is generated at the Ag NW electrode in the presence of hydrogen peroxide and collected through the new transparent electrode. The ECL performance at the new nanostructured electrode is compared with several other electrodes, including bulk silver wire, glassy carbon disk, and thermally reduced transparent graphene oxide (tr-GO) electrodes. The Ag NW electrode is found to be the best electrode for the reductive-oxidation ECL generation because of its catalytic properties with respect to the reduction of hydrogen peroxide and its high surface area.