Defect physics in $Y{b}^{3+}$-doped $Ca{F}_2$ from first-principles calculation

Yun-Hyok Kye, Chol-Jun Yu, Un-Gi Jong +2

Calcium fluoride has been widely used for light up-/down-conversion luminescence by accommodating lanthanide ions as sensitizers or activators. Especially, Yb-doped \ce{CaF2} exhib…