광전기화학셀용 나노구조 산화물 박막제작에 관한 연구

In this study, used simplest sandwich cells containing Ru2? liquid electrolytes in order to clarify the role of nanoporous ITO electrodes. And, the cell structure is as follow: F:SnO₂ glass/ nanoporous ITO/ tris(2,2'-bipyridy)ruthenium(Ⅱ) colplex [Ru(bpy)₃(PF?)₂] in propylene carbonate! F:SnO₂ glass. Nanoporous indium tin oxide (ITO) powder was synthesized employing a new route sol-gel combustion hybrid method using Ketjen Black as a fuel. The nano porous ITO powder was composed of SnCl₄~98.0% (aqueous solution) and In (NO₃)₃ㆍ5H₂O-99.999% (aqueous solution), produce with a NH₄OH (aqueous solution) with sol-gel method as a catalyst. The result, we found that ECL intensities increased rapidly by use of cathodes with nanoporous ITO layers. And, porous ITO electrodes were confirmed to be efficient for ECL devices as well as solar cell devices. It is thought that the increases in the ECL intensities may be associated with both formation of Ru? in porous ITO electrodes and the process taking place after reduction of Ru? which occurs in the nanoporous electrodes.