The surfaces of (100) InSb were analyzed by Auger electron spectroscopy before and after sulfur treatment. The Auger spectrums for In_(2)O_(3), Sb_(2)O_(3), and elemental Sb were detected in the native oxide of InSb surface. After the sulfur treatment...
The surfaces of (100) InSb were analyzed by Auger electron spectroscopy before and after sulfur treatment. The Auger spectrums for In_(2)O_(3), Sb_(2)O_(3), and elemental Sb were detected in the native oxide of InSb surface. After the sulfur treatment by ammonium sulfide((NH_(4))_(2)S_(x)), carbon content stays almost constant, but a great deal of the surface oxygen is replaced by sulfur, probably as a surface InSb-sulfide. For the case of the surfce which was sulfur treated during 2min at 25℃, carbon, oxygen and sulfur concentrations at surface were 11%, 6%, and 34%, respectively, and the In/Sb surface ratio was 1.0.