A route to CdSe film formation by reduction of selenosulfite ion in the presence of cadmium‐EDTA complex has been devised. The as‐deposited product is free from the selenium contamination characteristic of prior methods and also shows better n‐type photoactivity in sulfide‐polysulfide cells. The interfacial reactions have been clarified by rotating ring‐disk electrode and related techniques. Electrochemical control of the process is shown to be simple.
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Kazacos et al. (1980) studied this question.