Abstract
Oxide removal from GaSb surfaces by several wet chemical treatments and subsequent thermal annealing was investigated. Preferable wet chemical treatments by which surface oxides could be removed effectively at room temperature were evaluated in the experiments. This method can be effectively applied to fabrication processing of MBE GaSb photodoides and Au–GaSb Schottky doides. Low‐reverse‐leakage GaSb photodiodes and near ideal Au–GaSb Schottky diodes were thus obtianed.