Fabrication and luminescence properties of Er3+ doped yttrium lanthanum oxide transparent ceramics

Lü, Qing; Yang, Qiuhong; Yuan, Yongbo; Jiang, Cen; Wang, Yangang

doi:10.1016/j.ceramint.2013.12.082

Cited by 8 publications

(2 citation statements)

References 26 publications

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“…This should be attributed to the inhibition of grain growth caused by the Er-doping. 20 It can be seen that the grains are not uniform in size. Similar to the previous FIG.…”

Section: Resultsmentioning

confidence: 98%

Effects of vacancies on luminescence of Er-doped 0.93Bi0.5Na0.5TiO3-0.07BaTiO3 ceramics

Lau

Kwok

2015

Journal of Applied Physics

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0.93Bi 0.5 Na 0.5 TiO 3-0.07BaTiO 3 ceramics doped with 0.01 mol Er 3þ have been prepared and their photoluminescence (PL), ferroelectric, dielectric, and piezoelectric properties have been studied. By doping Er 3þ at various sites, ceramics containing oxygen or cation vacancies have been prepared and their effects have been investigated. Ceramic containing no vacancy (i.e., doping Er 3þ at the Bi 3þ site) has also been prepared as a reference for the study. In addition to the reduction of the up-conversion PL emissions at 532, 547, and 660 nm, our results also reveal that oxygen vacancies can enhance, at the expense of the visible emissions, the near-infrared (1.44-1.66 lm) and mid-infrared (2.62-2.84 lm) down-conversion emissions. Similar results have also been observed for the ceramics containing cation vacancies, and the enhancement in the near-infrared emission becomes much more significant, reaching about 70% for the ceramic doped with Er 3þ at the Na þ site. These should be attributed to the looping mechanism between the 4 F 7/2 , 2 H 11/2 , 4 I 9/2 , and 4 I 11/2 levels facilitated by the cation vacancies and the efficient cross relaxations. The ceramics also exhibit reasonably good ferroelectric, dielectric, and piezoelectric properties, suggesting that they have great potential for multifunctional applications.

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“…This should be attributed to the inhibition of grain growth caused by the Er-doping. 20 It can be seen that the grains are not uniform in size. Similar to the previous FIG.…”

Section: Resultsmentioning

confidence: 98%

Effects of vacancies on luminescence of Er-doped 0.93Bi0.5Na0.5TiO3-0.07BaTiO3 ceramics

Lau

Kwok

2015

Journal of Applied Physics

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“…At this point, the energy of Yb 3+ can be transferred to Er 3+ , by relaxing electrons in 2 F 5/2 to 2 F 7/2 level. This transferred energy is approximately matched with the excitation of 4 I 11/2 → 4 F 7/2 or 4 I 13/2 → 4 F 9/2 , enhancing the emission of Er 3+ [ 39 ]. However, excess concentration of Yb 3+ would interrupt the excitation of electrons in Er 3+ , that is, cross relaxation between 4 F 7/2 → 4 I 11/2 of Er 3+ and 2 F 7/2 → 2 F 5/2 of Yb 3+ could also possible.…”

Section: Resultsmentioning

confidence: 99%

Development of Er3+, Yb3+ Co-Doped Y2O3 NPs According to Yb3+ Concentration by LP–PLA Method: Potential Further Biosensor

Park

2021

Biosensors

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As diagnostic biosensors for analyzing fluids from the human body, the development of inorganic NPs is of increasing concern. For one, nanoceramic phosphors have been studied to meet the increasing requirements for biological, imaging, and diagnostic applications. In this study, Y2O3 NPs co-doped with trivalent rare earths (erbium and ytterbium) were obtained using a liquid phase–pulsed laser ablation (LP–PLA) method after getting high density Er, Yb:Y2O3 ceramic targets by Spark plasma sintering (SPS). Most NPs are under 50 nm in diameter and show high crystallinity of cubic Y2O3 structure, containing (222), (440), and (332) planes via HR–TEM. Excitation under a 980 nm laser to a nanoparticle solution showed 525 and 565 nm green, and 660 nm red emissions. The green emission intensity increased and decreased with increasing Yb3+ additive concentration, when the red spectrum continuously strengthened. Utilizing this study’s outcome, we suggest developing technology to mark invisible biomolecules dissolved in a solvent using UC luminescence of Er3+, Yb3+ co-doped Y2O3 NPs by LP–PLA. The LP–PLA method has a potential ability for the fabrication of UC NPs for biosensors with uniform size distribution by laser parameters.

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Effects of ZrO2 on the photoluminescence of 0.5 at% Eu:(Y0.9La0.1)2O3 transparent ceramics

Wang

Yang

Sun

et al. 2017

Ceramics International

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Fabrication and luminescence properties of Er3+ doped yttrium lanthanum oxide transparent ceramics

Cited by 8 publications

References 26 publications

Effects of vacancies on luminescence of Er-doped 0.93Bi0.5Na0.5TiO3-0.07BaTiO3 ceramics

Effects of vacancies on luminescence of Er-doped 0.93Bi0.5Na0.5TiO3-0.07BaTiO3 ceramics

Development of Er3+, Yb3+ Co-Doped Y2O3 NPs According to Yb3+ Concentration by LP–PLA Method: Potential Further Biosensor

Effects of ZrO2 on the photoluminescence of 0.5 at% Eu:(Y0.9La0.1)2O3 transparent ceramics

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