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A computational and spectroscopic study of Dy3+ doped BaAl2O4 phosphors

Jackson

A computational and spectroscopic study of Dy3+ doped BaAl2O4 phosphors Thumbnail


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Abstract

Computational and experimental methods are employed to study the optical properties of Dy-doped BaAl2O4 matrix. Atomistic modelling is used to make predictions of Dy doping sites and charge compensation schemes. The symmetry predicts from atomistic modeling was used to calculate crystal field parameters and to obtain the energies of the electronic transitions of the Dy3+ ion. Dy-doped BaAl2O4 was prepared via a sol-gel proteic technique. The optical properties were studied using X-ray excited optical luminescence (XEOL) measurements. The X-ray absorption near-edge structure (XANES) at the Ba and Eu LIII-edges exhibits typical absorption spectra. The area under the XEOL spectra increases as the photon energy increases in the region around the Ba and Dy LIII-edges. The XEOL spectra showed typical Dy lines. Experimental and calculated values for the transition energies are compared. Computational and experimental methods are employed to study of Dy-doped BaAl2O4 matrix. Atomistic modelling is used to make predictions of Dy doping sites. The optical properties were studied using XEOL measurements.

Citation

Jackson. (2018). A computational and spectroscopic study of Dy3+ doped BaAl2O4 phosphors. Optical Materials, 328 - 332. https://doi.org/10.1016/j.optmat.2018.06.039

Acceptance Date Jun 18, 2018
Publication Date Sep 1, 2018
Journal Optical Materials
Print ISSN 0925-3467
Publisher Elsevier
Pages 328 - 332
DOI https://doi.org/10.1016/j.optmat.2018.06.039
Keywords Optical materials; Computer modelling and simulation; Defects; Optical properties; Luminescence
Publisher URL https://www.sciencedirect.com/science/article/pii/S0925346718304191

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