Cooperative Upconversion Luminescence Properties of Yb3+ and Tb3+ Heavily Codoped Silicate Garnet Obtained by Multiple Chemical Unit Cosubstitution

Upconversion luminescence (UPL) characteristics and effects of Li+ ion on the UPL of ZnWO4:Yb,Er polycrystalline phosphors were investigated. It was shown that introduction of Li+ ions could reduce the calcination temperature by about 200 °C and increase the crystallinity of ZnWO4:Yb,Er by a liquid-phase sintering process via formation of Li2WO4 and other intermediates. UPL efficiency is remarkably promoted by Li+ ions. Moreover, the UPL spectrum of Li+-doped ZnWO4:Yb,Er presents a red shift, and the strongest peak position shifts from 553 to 559 nm. These can be attributed to a shift in the 4f level barycenter to lower energy, which results from lowering of the symmetry of the crystal field around Er3+.

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Effects of Metal Ions on the Shape-Controlled-Hydrothermal Synthesis and Upconversion Luminescence Properties of Y4O(OH)9NO3/Y2O3:Er3+,Yb3+

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2017.13000 ◽

2017 ◽

Vol 17 (3) ◽

pp. 1870-1876 ◽

Cited By ~ 1

Author(s):

Yunyun Chen ◽

Hyunho Choi ◽

Hong Liang

Keyword(s):

Hydrothermal Synthesis ◽

Metal Ions ◽

Upconversion Luminescence ◽

Luminescence Properties ◽

Shape Controlled

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Correction to: Upconversion luminescence properties of ZnO:Yb3+,Er3+ prepared by hydrothermal method

Journal of Materials Science Materials in Electronics ◽

10.1007/s10854-018-9687-7 ◽

2018 ◽

Vol 29 (17) ◽

pp. 15068-15068

Author(s):

Xiaohui Zhang ◽

Haiming Zhang ◽

Lijuan Wei ◽

Yue Zhang ◽

Biao Zhang

Keyword(s):

Hydrothermal Method ◽

Upconversion Luminescence ◽

Luminescence Properties

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Synthesis and Luminescence Properties of Lanthanide (III)-Doped YF3 Nanoparticles

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2006.119 ◽

2006 ◽

Vol 6 (3) ◽

pp. 830-836 ◽

Cited By ~ 23

Author(s):

Yang Cui ◽

Xianping Fan ◽

Zhanglian Hong ◽

Minquan Wang

Keyword(s):

Upconversion Luminescence ◽

Resonance Energy Transfer ◽

Resonance Energy ◽

Lanthanide Ions ◽

Luminescence Properties ◽

Synthesis Process ◽

Second Phase ◽

Trivalent Lanthanide ◽

Xrd Patterns ◽

Luminescence Concentration Quenching

Synthesis process and luminescence properties of trivalent lanthanide ions (Ln3+) doped YF3 nanoparticles have been investigated. To synthesis Ln3+-doped YF3 nanoparticles, the mixture of (YCl3·nH2O + LnCl3·nH2O), and NH4F was hydrothermal treated at 180 °C in a Teflon-liner auto-clave or heated at higher temperatures (400 °C ∼ 600 °C) in a stove. The XRD patterns showed that the Ln3+-doped orthorhombic YF3 nanoparticles with no second phase have been prepared. The solid solution Y1−xEuxF3 (x = 0 ∼ 0.4) nanoparticles have been synthesized. The luminescence concentration quenching resulted from resonance energy transfer between neighboring Eu3+ ions occurred at higher Eu3+ concentrations (30 mol%). The upconversion luminescence of Er3+−Yb3+ codoped YF3 nanoparticles under 980 nm excitation has also been observed. With increase of heated temperature, the size of the Er3+−Yb3+ codoped YF3 nanoparticles increased gradually, and upconversion luminescence intensity increased significantly.

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