Photovoltaic Effect of Bilayer Solid-State Cell with Polysiloxane Pendant Tris( 2,2-bipyridyl)ruthenium Complex

Abstract
A solid-state photoelectrochemical device was fabricated with a poly-siloxane pendant tris(2,2'-bipyridyl)ruthenium complex [ PSiO–Ru(bpy)3 2+] as a photosensitizer layer and a polysiloxane pendant methylviologen [ PSiO–MV2+] as an electron acceptor layer. In the dark, the SnO2/PSiO–MV2+/PSiO–Ru(bpy)3 2+/Ag solid-state cell showed rectification characteristics. Photocurrent was obtained in the bilayer solid-state cell upon illumination of visible light, which was caused by the photoexcitation of the Ru(bpy)3 2+ and successive electron transfer to the MV2+. The short-circuit photocurrent of 0.485 µ A· cm-2 was obtained with the intensity of illumination of 34 mW· cm-2.