Solid-state electrochemiluminescence of two iridium(III) complexes

Two water-insoluble iridium(III) complexes were modified in carbon nanotube (CNT)/Nafion composite films on a glassy carbon (GC) electrode to fabricate a new solid-state ECL sensor. The experimental conditions, such as potential, pH, concentration of CNT and different coreactants were investigated. This solid-state ECL sensor opens up the application of the water-insoluble iridium(III) complexes in the determination of the analyte in aqueous solution in analytical fields.