Structure and photoluminescence of Eu³⁺ doped Sr₂InTaO₆ red phosphor with high color purity.

ABSTRACT: The Eu³⁺-doped Sr₂InTaO₆ phosphors were obtained by solid-state reaction method and the phase purity of Sr₂InTaO₆:Eu³⁺ samples were investigated by the XRD patterns. The Rietveld refinements were conducted to further obtain crystal structure information and the results indicate Sr₂InTaO₆:Eu³⁺ samples crystallized in the monoclinic system with a P ₁₂₁ space group. The optical band gap of Sr₂InTaO₆ was calculated to be 3.84 eV by the diffuse reflectance spectra, which are consistent with the result (3.823 eV) of density functional theory. Under 396 nm excitation, the Sr₂InTaO₆:Eu³⁺ phosphor showed a red photoluminescence b

SUBMITTER: Zhao J 

PROVIDER: S-EPMC8695113 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature