Design and demonstration of absorption/luminescence-compatible spectroelectrochemical cell with optically transparent thin-layer electrode

An optically transparent thin-layer electrode (OTTLE) cell compatible with both absorption and luminescence spectroelectrochemistry was developed. An octagonal quartz prism with a slit to insert a Pt mesh working elec-trode allows 2 orientations with 90 degrees and 45 degrees versus incident lights from the absorption and luminescence spec-trophotometers, respectively. As a result, both spectroelectrochemical experiments can be operated using this single OTTLE cell. [Ru(bpy)(3)](2+/3+) was employed for demonstration of our cell in the absorption and lumines-cence spectroelectrochemical experiments as well as a preliminary electrochemical survey using cyclic voltammetry. Consequently, the Nernstian response of the [Ru(bpy)(3)](2+/3+) redox couple was observed as expected in any of the experiments, demonstrating that the current cell quantitatively works for both absorption and lumi-nescence spectroelectrochemistry.

Automated summary

An optically transparent thin-layer electrode (OTTLE) cell compatible with both absorption and luminescence spectroelectrochemistry was developed and its effectiveness was demonstrated through experiments in both absorption and luminescence spectroelectrochemistry.