The electronic properties of various transparent conducting oxide (TCO) surfaces are probed electrochemically via self-assembled monolayers (SAMs). A novel graftable probe molecule having a tethered trichlorosilyl group and a redox-active ferrocenyl functionality (Fc(CH2)4SiCl3) is synthesized for this purpose. On as-received ITO, saturation coverage by a close-packed monolayer having of 6.6...