Correlation between experimental spectroscopic study and crystal-field calculations of Co2+ ions in α-ZnAl2S4 spinel

The optical properties of Co2+ doped α-ZnAl2S4 single crystals were investigated by Anghel et al. (2011) [1,2]. The spectra of this spinel compound consist of electronic transition d-d of Co2+ (3d7) ions. This work examines a detailed crystal-field analysis of the visible lines associated to the tra...

Full description

Saved in:
Bibliographic Details
Published in:Journal of luminescence 2019-02, Vol.206, p.319-325
Main Authors: Mselmi, Faical, Taktak, Olfa, Souissi, Hajer, Kammoun, Souha
Format: Article
Language:English
Subjects:
Racah parameters
Spinel crystals α-ZnAl2S4
Transition-metal compounds
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The optical properties of Co2+ doped α-ZnAl2S4 single crystals were investigated by Anghel et al. (2011) [1,2]. The spectra of this spinel compound consist of electronic transition d-d of Co2+ (3d7) ions. This work examines a detailed crystal-field analysis of the visible lines associated to the transitions between the Stark levels of Co2+, occupying a Td site symmetry in α-ZnAl2S4 single crystals. The theoretical study is based on the Racah tensor algebra methods. With reference to the calculated energy levels of Co2+ doped α-ZnAl2S4, the electronic structure of Co2+ doped in α-ZnAl2S4 was resolved. The bands appearing in the spectra are reassigned. The calculated and reassigned results are consistent with the experimental data.
ISSN:0022-2313
1872-7883
DOI:10.1016/j.jlumin.2018.10.047