Effects of Electrode Materials and Surface Preparation on CdS‐Metal Contacts

Experimental studies on the effects of contact materials and crystal surface preparation on the voltampere characteristics of contacts to CdS single crystals are presented. Rectifying contacts are influenced by the surface preparation prior to electrode application. An artificially roughened or naturally rough crystal surface tends to reduce the rectification ratio of a contact. Two kinds of current fluctuations that may be attributed to the contacts are observed.