Optically Transparent Thin Film of Layered Niobate (K4Nb6O17) Intercalated with Tris(2,2′-bipyridyl)ruthenium(II)
A unique guest-guest ion exchange method was developed for preparing a thin film of a nano-layered K 4 Nb 6 O 1 7 .3H 2 O that possesses both 1) optical transparency and 2) ion-exchangeability, the first example of such a material. An optically transparent Ru(bpy) 3 2 + -K 4 Nb 6 O 1 7 hybrid thin film, a potential photo-responsive electrode, was successfully prepared by the guest-guest exchange method by use of the intercalation compound MV 2 + -K 4 Nb 6 O 1 7 as a precursor.