Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.



Influence of the Sc cation substituent on the structural properties and energy transfer processes in GAGG:Ce crystals

Author affiliations

Abstract

The influence of the Sc cation substituent on the structural and luminescence properties of GAGG:Ce crystals was studied. Unit cell parameters and space groups were obtained using XRD analysis. The chemical compositions of the crystals were determined using SEM-EDX and TEM-EDX techniques. Structures were refined by the Rietveld method and the distribution of Al/Ga/Sc cations between octahedral and tetrahedral sites was obtained. The influence of Sc on the electronic band structure and the energy of the 4f and 5d Ce3+ levels is shown. The modification of the band structure induced by the Sc electronic states results in the suppression of Gd emission and enhancement of Ce3+ emission at low temperatures. The Ce3+ emission decay is accelerated under high-energy excitation of the Sc-containing GAGG compound.

Graphical abstract: Influence of the Sc cation substituent on the structural properties and energy transfer processes in GAGG:Ce crystals

Back to tab navigation

Supplementary files

Article information


Submitted
26 Jan 2020
Accepted
25 Feb 2020
First published
25 Feb 2020

CrystEngComm, 2020, Advance Article
Article type
Paper

Influence of the Sc cation substituent on the structural properties and energy transfer processes in GAGG:Ce crystals

D. Spassky, N. Kozlova, E. Zabelina, V. Kasimova, N. Krutyak, A. Ukhanova, V. A. Morozov, A. V. Morozov, O. Buzanov, K. Chernenko, S. Omelkov and V. Nagirnyi, CrystEngComm, 2020, Advance Article , DOI: 10.1039/D0CE00122H

Social activity

Search articles by author

Spotlight

Advertisements