Rezende, MVDS, Montes, PJR, Valerio, MEG and Jackson, RA (2018) A computational and spectroscopic study of Dy3+ doped BaAl2O4 phosphors. Optical Materials, 83. 328 - 332. ISSN 1873-1252

[img] Text
R Jackson - A computational and spectroscopic study_accepted version.pdf - Accepted Version
Restricted to Repository staff only until 26 June 2019.
Available under License Creative Commons Attribution Non-commercial No Derivatives.

Download (730kB)

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.

Item Type: Article
Additional Information: The final published version of this article can be accessed online at https://www.sciencedirect.com/science/article/pii/S0925346718304191?via%3Dihub
Uncontrolled Keywords: Optical materials; Computer modelling and simulation; Defects; Optical properties; Luminescence
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Natural Sciences > School of Chemical and Physical Sciences
Depositing User: Symplectic
Date Deposited: 03 Sep 2018 08:02
Last Modified: 03 Sep 2018 08:02
URI: http://eprints.keele.ac.uk/id/eprint/5268

Actions (login required)

View Item View Item