| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7904766 | Materials Research Bulletin | 2018 | 20 Pages |
Abstract
The Cr3+, Yb3+ co-doped LaMgAl11O19 spectral conversion materials have been synthesized by solid-state reaction method. The phosphor can absorb photons in UV-vis spectral region and then give intense near-infrared emission around 980â¯nm originated from Yb3+: 2F5/2â¯ââ¯2F7/2 transition. Phonon-assisted energy transfers from Cr3+ ions and Cr3+-Cr3+ ion pairs to Yb3+ ions are both witnessed in LaMgAl11O19 host. The doping concentration and temperature dependent luminescence properties have been investigated. It is believed that Cr3+, Yb3+ co-doped LaMgAl11O19 phosphor might potentially act as spectral convertor for silicon-based solar cells to enhance the photovoltaic conversion efficiency.
Keywords
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Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Xiaoyu Luo, Xiaoliang Yang, Siguo Xiao,