Effect of impurities on the thermal oxidation process in InP

Abstract
Sulfur (n‐type) and zinc (p‐type) doped and undoped InP have been thermally oxidized in the temperature range 400 °C≤T≤600 °C. The Raman scattering and Auger electron spectroscopy techniques show that the doping enhances the formation of the crystalline InPO4 phase and favors the growth of crystalline phosphorus at the oxide/InP interface.

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