A red phosphor, Ba3Sc2F12:Mn4+, with extraordinary thermal stability and for application in “warm” white LEDs for backlighting, was obtained at room temperature and its luminescence intensity has been improved by optimizing its synthetic parameters.
The luminescence properties of reddish-orange emitting BaY2−xEuxGe3O10 phosphors crystallizing in the monoclinic system (S.G. P21/m) have been discussed in detail. The studied germanates are appropriate for applications in high-powered pc-LEDs.