Abstract
The behavior of plasma-induced defects deactivating Si donors in GaN has been studied by using Schottky diodes with the UV illumination. It is interesting that the UV irradiating for the deactivated GaN leads to an enhancement of reactivation of the donors even at room temperature. It is found that the donor-deactivated region in n-GaN shifts toward the bulk region with increasing the illumination time. The effect of the UV illumination is thought to be the direct photodissociation of the donor-defect complexes or the injection of holes as a minority carrier. (© 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
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