Immobilising ruthenium organosilane complexes on ITO electrode surface towards electrogenerated chemiluminescence

Abstract

A light-emitting organosilane molecule based on a Ru-complex was synthesized from 1,10-phenanthroline, (3-Aminopropyl)triethoxysilane (APTES), ruthenium trichloride, and 2,2′-Bipyridine. The resulting complex was covalently attached to a transparent conductive substrate, Indium-Tin Oxide (ITO), using a straightforward dipping method. Surface characterization of the modified substrates was conducted through X-ray photoelectron spectroscopy (XPS) and electrochemical experiments, confirming the presence of covalent bonds. The immobilized film of the ruthenium organosilane complex on ITO demonstrated robust stability as a modified electrode and holds significant promise as a novel light-emitting material.