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- W3132694295 endingPage "166513" @default.
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- W3132694295 abstract "A new composite perovskite Ba3ZnNb2O9: Eu3+ orange-red phosphor series was synthesized by high temperature solid-state reaction. The structural analysis showed that Ba3ZnNb2O9 exhibits an ordered hexagonal phase after sintering at high temperature, and Eu3+ ions replace Zn2+ ions after doping. By exploring the influence of sintering temperature and doping concentration on the luminescence of the samples, it is found that the optimum sintering temperature doping concentration of the phosphors are 1300 °C and 0.3 mol, respectively. Under the near-ultraviolet excitation, Ba3ZnNb2O9: 0.3Eu3+ phosphors emitted orange-red light at 593 nm, the chromaticity coordinate is (0.607, 0.389). By linear fitting of the diffuse reflectance spectra of the samples, the optical band gap of the Ba3ZnNb2O9 is 3.05 eV, and it becomes narrower after doping. The thermal quenching activation energy is 0.132 eV by thermal stability analysis. The results showed that Ba3ZnNb2O9: Eu3+ phosphor is suitable for white LEDs excited by near ultraviolet." @default.
- W3132694295 created "2021-03-01" @default.
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- W3132694295 date "2021-04-01" @default.
- W3132694295 modified "2023-10-18" @default.
- W3132694295 title "A novel composite perovskite Ba3ZnNb2O9: Eu3+ orange red-emitting phosphor: Crystal structure, luminescence properties and high thermal stability" @default.
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- W3132694295 doi "https://doi.org/10.1016/j.ijleo.2021.166513" @default.
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