Luminescence properties related to energy transfer process and cross relaxation process of Y2O3: Yb3+/Er3+ thin films doped with K+ ion

Xu, Boxu; Song, Chao; Huang, Rui; Song, Jie; Lin, Zhenxu; Song, Jian; Liu, Juncheng

doi:10.1016/j.optmat.2021.111290

Cited by 8 publications

(1 citation statement)

References 25 publications

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“…Contrary to Adnan Khan's research, Er 3+ not only cause the quenching of Tm 3+ [30], but also receives energy from Tm 3+ (Er: 4 I 13/2 + Tm: 3 H 5 → Er: 4 F 9/2 + Tm: 3 H 6 ), explaining the small increase in green and red emissions. When the Er 3+ doping concentration was 0.6 mol%, three emissions exhibited a strong peak, possibly because of the increase in luminescent centers, weakening of lattice symmetry, and release of dormant RE ions located in the symmetric positions of the Y 2 O 3 lattice [31,32]. Increasing the Er 3+ concentration up to 1.4 mol% resulted in emission enhancement, and the enhancement of the green and red emissions should be attributed to the energy from Tm 3+ .…”

Section: Conflicts Of Interestmentioning

confidence: 99%

Tunable Emission and Color Temperature of Yb3+/Er3+/Tm3+-Tridoped Y2O3-ZnO Ceramic Nano-Phosphors Using Er3+ Concentration and Excitation Pump Power

Song

et al. 2022

Nanomaterials

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In this study, a series of well-crystallized Yb3+/Er3+/Tm3+-tridoped Y2O3-ZnO ceramic nano-phosphors were prepared using sol–gel synthesis, and the phosphor structures were studied using X-ray diffraction, scanning electron microscopy, and thermogravimetric analysis. The phosphors were well crystallized and exhibited a sharp-edged angular crystal structure and mesoporous structure consisting of 270 nm nano-particles. All phosphors generated blue, green, and red emission bands attributed to Tm: 1G4→3H6, Er: 2H11/2 (4S3/2)→4I15/2, and Er: 4F9/2→4I15/2 radiative transitions, respectively. Increasing in luminescent centers, weakening of lattice symmetry, and releasing of dormant rare earth ions can enhance all emissions. Er3+ can obtain energy from Tm3+ to enhance green and red emission. These colors can be tuned by optimizing the doping concentrations of the Er3+ ion. The color coordinates were adjusted by tuning both the Er3+ concentration and excitation laser pump power to shift the color coordinates and correlated color temperature. The findings of this study will broaden the potential practical applications of phosphors.

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Section: Conflicts Of Interestmentioning

confidence: 99%