Photoluminescence properties of Eu2+‐activated thiogallate phosphors

Abstract This work analyzes the crystal structural properties and photoluminescence properties of six Eu 2+ ‐activated thiogallates: CaGa 2 S 4 :Eu 2+ , SrGa 2 S 4 :Eu 2+ , EuGa 2 S 4 , BaGa 2 S 4 :Eu 2+ , Sr 2 Ga 2 S 5 :Eu 2+ , and Eu 2 Ga 2 S 5 . Photoluminescence parameters such as the absorption energy ( E abs ), emission energy ( E em ), zero‐phonon line energy ( E 0 ), Stokes shift (Δ S ), and red shift ( D ) are discussed. This work is the first report on the photoluminescence parameters of these six Eu 2+ ‐activated thiogallates and therefore provides important information about these materials.