Abstract

Zero-phonon electronic transitions of Cr3+ impurity ions in solid solutions and nanocrystals are studied. In the series of Lu3xY3-3xAl5O12 (0<x<1) garnet solid solution crystals the modification of zero-phonon R-line (2E–4A2) fluorescence spectra of Cr3+ ions with changing x occurs in a discrete fashion and is not accompanied by strong inhomogeneous broadening. The effect is ascribed to high C3i symmetry of Cr3+(Al3+) sites. The fluorescence line narrowing experiments were performed for the inhomogeneously-broadened R-line of cubic Cr3+ centers in MgO nanocrystals. The inhomogeneous broadening in nanocrystals is attributed to spatial confinement.

Details

Title
Inhomogeneous Broadening: Symmetry of Centers and Disorder in Solid Solutions and Nanocrystals
Author
Feofilov, S P; Kaplyanskii, A A; Kulinkin, AB; Zakharchenya, R I; Ovanesyan, K; Petrosyan, A; Dujardin, C
Section
Plenary talks
Publication year
2015
Publication date
2015
Publisher
EDP Sciences
ISSN
21016275
e-ISSN
2100014X
Source type
Conference Paper
Language of publication
English
ProQuest document ID
1762706588
Copyright
© 2015. This work is licensed under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and conditions, you may use this content in accordance with the terms of the License.