Micro-environment of the Eu interstitial in $\beta$-SiAlON:Eu${}^{2+}$ green phosphor

Julien Bouquiaux, Samuel Poncé, Yongchao Jia +2

The precise atomic-scale structure around Eu${}^{2+}$ activators in the $\beta$-Si${}_{6-z}$Al${}_z$O${}_z$N${}_{8-z}$:Eu${}^{2+}$ commercial green phosphor remains elusive. We use the first-princ…