Luminescence study of some yttrium tantalate-based phosphors

► Some yttrium tantalate-based phosphors are perspective materials for optoelectronics. ► Phosphors samples were prepared by solid-state reaction route. ► The techniques such as XRD, SEM and luminescence are used for these phosphors. ► The paper presents the influence of activator concentration and PL characteristics. ► TSL characteristics of these phosphors were first investigated.