Effects of N2, O2, and H2O on GaAs passivated by photowashing or coating with Na2S⊙9H2O

C.W. Wilmsen; P.D. Kirchner; J. Woodall

doi:10.1063/1.341519

Journal of Applied Physics

Paper

01 Dec 1988

Effects of N₂, O₂, and H₂O on GaAs passivated by photowashing or coating with Na₂S⊙9H₂O

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Abstract

The photoluminescence (PL) from the surface region of GaAs passivated by photowashing or coating with Na2S⊙9H2O is shown to be sensitive to the gas ambient. Both water vapor and oxygen must be present in order to obtain a large PL signal. The effects are activated by the measuring laser light.

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