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Novel reddish long lasting phosphorescence material Sr2ScGaO5:Sm3+ was designed and prepared by a solid state reaction. The results of morphology showed that the irregular microparticles were formed by the agglomeration of uniform submicron particles with the size of about 0.5–1 μm. The electronic structure with an indirect bandgap was evaluated in detail by the density functional theory calculations...
Novel long lasting phosphorescence materials BaSc2Si3O10:Eu2+, RE3+ (RE3+ = Nd3+, Tm3+, Dy3+ and Tb3+) are designed and prepared by a solid state reaction. According to the density functional theory calculations, the conduction band is mostly composed of Sc 3d states, and Ba states have almost no contribution to the conduction band. Their photoluminescence emission spectra show a broad asymmetric...
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