Mutual Passivation of Group IV Donors and Isovalent Nitrogen in Diluted GaN x As 1-x Alloys
We demonstrate the mutual passivation of electrically active group IV donors and isovalent N atoms in the GaNxAs1-x alloy system. This phenomenon occurs through the formation of a donor-nitrogen bond in the nearest neighbor IVGa-NAs pairs. In Si-doped GaInN0.017As0.983 the electron concentration starts to decrease rapidly at an annealing temperature of 700°C from ∼ 3 × 1019cm-3 in the as-grown state to less than 10 16cm-3 after an annealing at 900°C for 10s. At the same time, annealing of this...[Show more]
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