Cadmium telluride is a commercially viable material for thin-film photovoltaic cells and is amenable to low cost electrochemical deposition. The majority-carrier type can be controlled by deposition conditions. We have produced back-contact thin-film solar cells by a self-aligned electrochemical deposition process onto two interdigitated electrodes. We report preliminary performance as a function of electrode geometry. The process and structure are readily amenable to optimization and should facilitate quantitative measurement and modeling of any candidate material that can be electrodeposited.