The ITO electrodes prepared using CO2 laser irradiation were primarily characterized using cyclic voltammetry (CV) and chronoamperometry (CA). Diffusion-controlled CVs with reproducible signals were observed for electrodes of all the sizes within the same plate. The plate-to-plate reproducibility of signals was highly satisfactory too. The figure shows the reproducible cyclic voltammograms of electrodes of different sizes, where each set comes from a single plate.