Co-doping effect of Ce ions on Eu ion-doped Sr2SnO4 in terms of emission color tunability and intensity modulation
- Authors
- Lee, D. J.; Lee, Y. S.
- Issue Date
- Aug-2023
- Publisher
- ELSEVIER
- Keywords
- Ce3+; Eu3+; Strontium stannate; Photochromism; Photoluminescence modulation; Defect state
- Citation
- OPTICAL MATERIALS, v.142
- Journal Title
- OPTICAL MATERIALS
- Volume
- 142
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/44272
- DOI
- 10.1016/j.optmat.2023.114094
- ISSN
- 0925-3467
- Abstract
- We investigated the co-doping effect of Ce3+ and Eu3+ ions on the visible emission of the single-layered perovskite Sr2SnO4. The Ce3+ single-doped Sr2SnO4 showed a sizable feature at approximately 260 nm in the photoluminescence excitation spectra and a broad peak at approximately 400 nm in the photoluminescence spectra. These peaks were attributed to the 4f-5d transitions of Ce3+. In the Ce3+ and Eu3+ co-doped samples, as the concentration of Ce3+ increased, the emission intensity of Eu3+ increased drastically with near-ultraviolet excitation due to the energy transfer from Ce3+ to Eu3+. Because of the changes in the relative emission intensities of the two ions, the colors emitted by phosphor were tuned from blue/orange to red. We also discussed the effect of Ce3+ doping on the photochromic behavior of Eu3+-doped Sr2SnO4, together with luminescence modulation.
- Files in This Item
-
Go to Link
- Appears in
Collections - ETC > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.