Novel Red Phosphor of Gd³⁺, Sm³⁺ co-Activated Ag_xGd_{((2-x)/3)-0.3-y}Sm_yEu³⁺_0.30☐_(1-2x-2y)/3WO₄ Scheelites for LED Lighting.

ABSTRACT: Gd³⁺ and Sm³⁺ co-activation, the effect of cation substitutions and the creation of cation vacancies in the scheelite-type framework are investigated as factors influencing luminescence properties. Ag_xGd_{((2-x)/3)-0.3-y}Sm_yEu³⁺_0.3☐_(1-2x)/3WO₄ (x = 0.50, 0.286, 0.20; y = 0.01, 0.02, 0.03, 0.3) scheelite-type phases (A_xGS_yE) have been synthesized by a solid-state method. A powder X-ray diffraction study of A_xGS_yE (x = 0.286, 0.2; y = 0.01, 0.02, 0.03) shows that the crystal structures have an incommensurately modulated character similar to other cation-deficient s

SUBMITTER: Morozov VA 

PROVIDER: S-EPMC10303245 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature