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- W2034413800 abstract "In this study, we investigated the luminescence properties of erbium-doped potassium tantalite niobate (KTa x Nb 1- x O 3 or KTN) ceramics, which were prepared by the conventional solid-state reaction synthesis method. In this work, we studied the relationships of the crystal structure, and Raman and photoluminescence (PL) spectra with the tantalum concentration, respectively. The experiments showed that the tantalum dopants modified the intensity of the green, red and near-infrared emission bands. The experiments also showed a blue shift for the 2 mol % erbium doped KTN samples with different tantalum compositions. Doping Ta not only led to the change in PL intensity but also in spectral shapes. The PL spectra showed the splitting peaks for the samples with low Ta compositions. Then these peaks combined and broadened as Ta concentration increase. When Ta was substituted for Nb completely, the luminescence intensity of the green emission band had an increase of approximately about one order of magnitude, which was because of the absence of the first-order phonon relaxation in the high-Ta-concentration samples." @default.
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- W2034413800 date "2006-07-01" @default.
- W2034413800 modified "2023-10-18" @default.
- W2034413800 title "Photoluminescence of Erbium-Doped Potassium Tantalate Niobate Polycrystalline" @default.
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- W2034413800 doi "https://doi.org/10.1143/jjap.45.5812" @default.
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