Paul Kent Pictures

Localized states around nitrogen pairs in GaP

Initially observed during the 1970s, the science of dilute nitrides was reinvigorated when growth techniques improved to the point that a few percent nitrogen could be incorporated in GaP and GaAs. These states are visible as sharp lines in photoluminescence. I predicted and identified the triplet state in GaP. Understanding these eventually led to an understanding of the GaAsN and GaPN alloys.

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