Exciton-related luminescence in LuAG:Ce single crystals and single crystalline films

✍ Scribed by Zorenko, Yu. ;Gorbenko, V. ;Voloshinovskii, A. ;Stryganyuk, G. ;Mikhailin, V. ;Kolobanov, V. ;Spassky, D. ;Nikl, M. ;Blazek, K.

• Publisher: John Wiley and Sons
• Year: 2005
• Tongue: English
• Weight: 194 KB
• Volume: 202
• Category: Article
• ISSN: 0031-8965
• DOI: 10.1002/pssa.200420007

✦ Synopsis

Abstract

Luminescence of the excitons and the role of anti‐site defects, as well as the peculiarities of energy transfer to the Ce^3+^ activator ions were investigated in Lu~3~Al~5~O~12~:Ce compound. The measurements of time–resolved emission spectra and decay kinetics at 9 K and 300 K under the excitation by synchrotron radiation were used. The characteristics of single crystals and single crystalline films of Lu~3~Al~5~O~12~:Ce were compared and differences explained in the light of substantially different concentrations of the anti‐site defects in the same material prepared by different technologies. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)