Enhancement of the upconversion luminescence in Y2O3:Er3+ powders by codoping with La3+ ions

Ruoshan Lei; Huanping Wang; Shiqing Xu; Yin Tian; Lihui Huang

doi:10.3788/COL201513.021602

Journals >Chinese Optics Letters >Volume 13 >Issue 2 >Page 021602 > Article

Chinese Optics Letters
Vol. 13, Issue 2, 021602 (2015)

Enhancement of the upconversion luminescence in Y₂O₃:Er³⁺ powders by codoping with La³⁺ ions

Ruoshan Lei, Huanping Wang, Shiqing Xu^*, Yin Tian, and Lihui Huang

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College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018, China

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DOI: 10.3788/COL201513.021602 Cite this Article Set citation alerts

Ruoshan Lei, Huanping Wang, Shiqing Xu, Yin Tian, Lihui Huang. Enhancement of the upconversion luminescence in Y₂O₃:Er³⁺ powders by codoping with La³⁺ ions[J]. Chinese Optics Letters, 2015, 13(2): 021602 Copy Citation Text

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$(a) XRD patterns of (Er0.05Y0.95-xLax)2O3 powders (x=0, 0.05, 0.1, and 0.12). (b) The enlarged pattern of (222) diffraction peaks. (c) The variation of lattice parameter with the increase in La3+ concentration in the lattice.$

Fig. 1. (a) XRD patterns of (Er0.05Y0.95-xLax)2O3 powders (x=0, 0.05, 0.1, and 0.12). (b) The enlarged pattern of (222) diffraction peaks. (c) The variation of lattice parameter with the increase in La3+ concentration in the lattice.

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(a) Measured UC spectra in Y2O3 powders doped with 5 mol.% Er3+ ions and several La3+ ions under a 980 nm excitation. (b) The integral intensity of green emission as a function of La3+ ions. (c) The intensity ratio of the green to red as a function of La3+ ions.

Fig. 2. (a) Measured UC spectra in Y2O3 powders doped with 5 mol.% Er3+ ions and several La3+ ions under a 980 nm excitation. (b) The integral intensity of green emission as a function of La3+ ions. (c) The intensity ratio of the green to red as a function of La3+ ions.

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