PROCESS FOR THE PURIFICATION OF ELECTROLYTE COMPONENTS

摘要

A method of preparing an aqueous solution of a Group IIB metal salt suitable for use in the electrodeposition of a IIB/VIB thin film semiconductor which comprises (a) bringing a solution of the Group IIB metal salt into contact with the corresponding IIB metal in the form of a powder with a purity greater than 99.99 %; (b) agitating the solution containing the powder for at least 10 minutes; and (c) removing the metal powder from the solution. A method of preparing an electrodeposited thin film IIB/VIB semiconductor by cathodic deposition from an electrolyte containing ions of Group II metal, is also claimed.