Add time:08/28/2019         Source:sciencedirect.com

High quality epitaxial layers of AlxGa1-xAs have been grown by reduced pressure MOVPE using the new aluminium precursor trimethylamine alane in combination with trimethylgallium and arsine. The layers were grown at 650°C and were shown to possess n-type conductivity for all aluminium compositions. Low temperature photoluminescence data indicated that carbon was still present in the low aluminium content layers. In marked contrast to previous studies at atmospheric pressure, the AlGaAs layers grown at low pressure using trimethylamine alane were of high compositional and thickness uniformity.

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