Solid-State Electrochemiluminescence Based on a Novel Iridium(III) Complex

The electrochemistry and ECL behavior of a novel iridium complex(ppy)2Ir(N-phBA)(ppy=2-phenylpyridine,N-phBA=N-phenylbenzamide) was investigated in acetonitrile solution in the presence of tri-n-propylamine as a coreactant.Multi-wall carbon nanotubes/iridium(Ⅲ)(MWNTs/Ir(Ⅲ)) modified electrode was prepared,and the ECL property of sensor was studied.The new iridium(Ⅲ) complex was found to display good sensitivity and no background light.The MWNTs/Ir(Ⅲ) modified electrode can be fabricated easily and can produce steady ECL in continuous Cyclic voltammetries scanning.These results provided information for ECL study on other iridium(Ⅲ) complexes and for building an efficient ECL system for analytical applications.