Upconversion luminescence of Yb3+/Ho3+/Er3+/Tm3+ co-doped KGd(WO4)2 powders |
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| Authors: | DU Haiyan ; LAN Yujing ; XIA Zhiguo ; SUN Jiayue |
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| Affiliation: | [1]College of Chemistry and Environmental Engineering [2]Beijing Technology and Business University [3]School of Materials Sciences and Technology [4]China University of Geosciences |
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| Abstract: | Different lanthanide ions (Yb3+/Ho3+/Er3+/Tm3+) codoped KGd(WO4)2 phosphors were prepared by high-temperature solid-state reaction. The upconversion luminescence properties of two-ion and three-ion co-doped KGd(WO4)2 phosphors were investigated in detail. The concentration quenching effect of the two-ion co-doped KGd(WO4)2 phosphors was studied, and the optimum concentration of Ho3+, Er3+ and Tm3+ are 2 mol.%, 2 mol.% and 3 mol.%, respectively. The Yb3+/Ho3+/Tm3+ co-doped KGd(WO4)2 sample is the best white ... |
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