Indirect excitation of Eu3+ in GaN codoped with Mg and Eu

Yamaga, M and Watanabe, H and Kurahashi, M and O'Donnell, K P and Lorenz, K and Boćkowski, M (2015) Indirect excitation of Eu3+ in GaN codoped with Mg and Eu. Journal of Physics: Conference Series, 619 (1). 012025. ISSN 1742-6588 (https://doi.org/10.1088/1742-6596/619/1/012025)

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Abstract

Temperature-dependent Eu3+ luminescence spectra in GaN(Mg):Eu can be assigned to, at least, two distinct Eu3+ centres, denoted by Eu0 and Eu1. The splitting energy levels of the 7FJ (J=1,2) multiplets for the Eu0 and Eu1 centres have been calculated using the equivalent operator Hamiltonian for C3v crystal field with the addition of an odd parity distortion.