Figure 7
From: Electrochemical response of metal complexes in homogeneous solution under photoirradiation
Square wave voltammograms of [Ru(bpy)3](NO3)2 with and without photoirradiation.
(a) Thin layer square wave voltammograms of [Ru(bpy)3](NO3)2·5H2O (1 mM) in a 0.1 M Na2SO4 aqueous solution under photoirradiation (red, 400 nm < λ < 800 nm; green, 570 nm < λ < 800 nm) and in the dark (blue) under an Ar atmosphere (WE: GC; CE: Pt wire; RE: SCE; scan rate: 5 mV s−1). Similar to the results of CV, a new peak appeared when the sample was irradiated with visible light (400–800 nm). (b) Thin layer square wave voltammograms of [Ru(bpy)3](NO3)2·5H2O (1 mM) in a 0.1 M Na2SO4 aqueous solution under photoirradiation (red, 400 nm < λ < 800 nm) and in the dark (blue) under an Ar atmosphere (WE: GC; CE: Pt wire; RE: SCE; scan rate: 5 mV s−1). The peak at approximately 0.79 V (vs. SCE) repeatedly appeared only when light was irradiated.
