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Luminescence Properties of Oxygen-Containing Silicon Annealed at Enhanced Argon Pressure

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1999

Year

Abstract

The effect of annealing at argon pressure, HP, up to 1.5 GPa on photoluminescence, PL, of oxygen-containing silicon (of Czochralski grown, Cz-Si, and of oxygen-implanted, Si:O) and of thermally — grown SiO2 films was investigated. Pressure-annealing of Cz-Si and Si:O at 720 to 1400 K affects the intensity of dislocation-related PL lines in the infrared, which follows from HP effect on oxygen precipitation in silicon and Si:O. For the first time visible/ultraviolet PL of the SiO2 surface film was detected after subjecting it to pressure treatment at (1400 to 1550) K, (0.9 to 1.5) GPa.