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- W1989619456 abstract "Crystalline phase and photoluminescence spectra of Eu3+-doped TiO2 particles prepared by a sol–gel method have been investigated at room temperature. X-ray powder diffraction patterns and transmission electron microscope images reveal that amorphous, anatase and rutile phases appear and the grain size becomes larger with the increase of annealing temperature. Under the excitation with a He-Cd laser (325 nm), the well-known 5D0 → 7 F J (J = 0, 1, 2, 3, 4) transitions exhibit broad luminescence bands for amorphous and rutile phases, and sharp luminescence lines for the anatase phase, respectively. The correlation between the crystalline phases and the luminescence properties is discussed on the basis of the symmetry around the Eu3+ ions." @default.
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- W1989619456 date "2008-01-01" @default.
- W1989619456 modified "2023-09-25" @default.
- W1989619456 title "Crystalline-phase dependent red luminescence of TiO2 : Eu3bplus particles prepared by a sol–gel method" @default.
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- W1989619456 doi "https://doi.org/10.1080/09500830701666154" @default.
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