Effects of Ca2+ doping on upconversion luminescence intensity and crystal field asymmetry of β-NaYF4:Yb3+/Er3+ microcrystals
| Autor: | Tang, Hao, Zhou, Hua, Cheng, Xianhua |
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| Zdroj: | In Journal of Luminescence May 2020 221 |
| Databáze: | ScienceDirect |
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