Effects of phase structure on up-conversion photoluminescence and dielectric performance in Er3+ doped (Bi0. 5Na0. 5)TiO3-BaTiO3 lead-free ceramics

Chen, Chao; Xia, Xiang; Zheng, Laiqi; Luo, Laihui; Tu, Na; Shen, Zong–Yang; Jiang, Xiangping; Liu, Jun‐Ming

doi:10.1016/j.jallcom.2019.06.147

Cited by 12 publications

(2 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The variation trend of sensitivity with temperature was the same as that of the other reported literature. ,,, Clearly, sensitization and influence on the crystal field of Yb 3+ ions improved the FIR value, compared with other Er 3+ /Yb 3+ codoped samples , and then significantly improved the temperature sensing performance of these KNN ceramics. These materials were comparable to other reported Er 3+ -doped UC ferroelectrics in terms of 2 H 11/2 / 4 S 3/2 → 4 I 15/2 transitions for temperature sensing (Figure ) ,− …”

Section: Results and Discussionsupporting

confidence: 88%

Simultaneous Yb³⁺-Induced Phase Transition and Sensitized Luminescence in Er³⁺-Doped KNN-Based Lead-Free Ceramics for Optical Thermometry

Zhao

Wang

Zhang

et al. 2020

ACS Appl. Electron. Mater.

View full text Add to dashboard Cite

Environment-friendly potassium sodium niobate-based ferroelectrics have been widely and deeply studied for their electrical properties, but there remains much potential for applications in other fields, one of which is in optical temperature sensing. Herein, a host (K,Na)Li0.04NbO3:0.5 mol% Er material with an orthogonal–tetragonal phase transition was constructed by Li+ regulation and then increased Yb2O3 codoping used to promote the occurrence of orthogonal to tetragonal and tetragonal to pseudocubic phase transitions. Interestingly, codoping with Yb2O3 as a sensitizer and phase structural changes regulated the resulting materials’ luminescent characteristics and greatly enhanced luminescence intensity and temperature sensing properties, compared with those of merely Er3+-doped samples. In addition, strong green and red light emissions were related to the large absorption cross-section of Yb3+ near 980 nm, which transferred more energy to Er3+. In particular, significantly enhanced red light, or red shift, was associated with energy back transfer at high Yb3+ concentrations. Furthermore, the optimal ceramic was (K, Na)Li0.04NbO3:0.5 mol % Er/2.5 mol % Yb (KNL0.04N:0.5 Er/2.5 Yb), and its maximum absolute and relative sensitivity of 0.0112 and 0.0173 K–1, respectively, which were higher than those of other reports. These results showed that KNL0.04N:0.5Er/2.5Yb lead-free ceramic possessed the potential to be an excellent optical temperature sensor with high intensity and sensitivity.

show abstract

Section: Results and Discussionsupporting

confidence: 88%

Simultaneous Yb³⁺-Induced Phase Transition and Sensitized Luminescence in Er³⁺-Doped KNN-Based Lead-Free Ceramics for Optical Thermometry

Zhao

Wang

Zhang

et al. 2020

ACS Appl. Electron. Mater.

View full text Add to dashboard Cite

show abstract

“…Particularly, rare earth (RE)-doped NBT-xBT materials exhibit attractive photoluminescence (PL) properties, e.g., Er 3þ , Pr 3þ , Eu 3þ , Ho 3þ -doped NBT-xBT ceramics and films. [19][20][21][22][23][24][25] In these researches, RE elements have been used as luminescent resources, due to a great deal of energy levels and characteristic 4f -4f electron transitions ascribed to a partially filled inner ( 4 f n Þ shell shielded from its surroundings by completely filled outer ( 5 s 2 and 5 p 6 Þ orbitals. However, the vast majority of RE-doped ferroelectric materials just have low luminescent efficiency.…”

Section: Introductionmentioning

confidence: 99%

Tuning the ferroelectric, dielectric and photoluminescence properties of 0.88(Na0.5Bi0.5)TiO₃-0.12BaTiO₃ ceramics by Sm ion doping

Zhao

Zhang

et al. 2019

J. Adv. Dielect.

View full text Add to dashboard Cite

Solid solutions of the lead-free 0.88([Formula: see text][Formula: see text]TiO3-0.12([Formula: see text][Formula: see text]TiO3 (NBT-BT: [Formula: see text]Sm) ferroelectric ceramics were synthesized by solid state reaction. The doping of Sm promotes the structure of the ceramics to transform toward morphotropic phase boundary, and it decreases the grain size of the ceramics. With the increase of Sm content, the ferroelectric properties are improved gradually, where the ferroelectric polarization increases and the coercive field decreases. Sm doping induces a dielectric anomaly with obvious frequency dispersion at a low temperature, exhibiting the transition from the ferroelectric to relaxor state. Moreover, the photoluminescence spectra of NBT-BT:[Formula: see text]Sm ceramics exhibit a strong orange emission upon blue light excitation of the 400[Formula: see text]nm to 500[Formula: see text]nm. The emission intensities are strongly dependent on the Sm doping concentration, which reached the optimal value as the doping concentration is 0.7%. These results suggest that the NBT-BT:[Formula: see text]Sm ceramics may have significant technological promise in novel multifunctional devices.

show abstract

Enhanced energy storage and photoluminescence properties in ErBiO3-doped (Na0.5Bi0.5)TiO3-SrTiO3 ceramics

Qiu

Chen

et al. 2022

J Mater Sci

View full text Add to dashboard Cite

Effects of phase structure on up-conversion photoluminescence and dielectric performance in Er3+ doped (Bi0. 5Na0. 5)TiO3-BaTiO3 lead-free ceramics

Cited by 12 publications

References 44 publications

Simultaneous Yb³⁺-Induced Phase Transition and Sensitized Luminescence in Er³⁺-Doped KNN-Based Lead-Free Ceramics for Optical Thermometry

Simultaneous Yb³⁺-Induced Phase Transition and Sensitized Luminescence in Er³⁺-Doped KNN-Based Lead-Free Ceramics for Optical Thermometry

Tuning the ferroelectric, dielectric and photoluminescence properties of 0.88(Na0.5Bi0.5)TiO₃-0.12BaTiO₃ ceramics by Sm ion doping

Enhanced energy storage and photoluminescence properties in ErBiO3-doped (Na0.5Bi0.5)TiO3-SrTiO3 ceramics

Contact Info

Product

Resources

About

Effects of phase structure on up-conversion photoluminescence and dielectric performance in Er3+ doped (Bi0. 5Na0. 5)TiO3-BaTiO3 lead-free ceramics

Cited by 12 publications

References 44 publications

Simultaneous Yb3+-Induced Phase Transition and Sensitized Luminescence in Er3+-Doped KNN-Based Lead-Free Ceramics for Optical Thermometry

Simultaneous Yb3+-Induced Phase Transition and Sensitized Luminescence in Er3+-Doped KNN-Based Lead-Free Ceramics for Optical Thermometry

Tuning the ferroelectric, dielectric and photoluminescence properties of 0.88(Na0.5Bi0.5)TiO3-0.12BaTiO3 ceramics by Sm ion doping

Enhanced energy storage and photoluminescence properties in ErBiO3-doped (Na0.5Bi0.5)TiO3-SrTiO3 ceramics

Contact Info

Product

Resources

About

Simultaneous Yb³⁺-Induced Phase Transition and Sensitized Luminescence in Er³⁺-Doped KNN-Based Lead-Free Ceramics for Optical Thermometry

Simultaneous Yb³⁺-Induced Phase Transition and Sensitized Luminescence in Er³⁺-Doped KNN-Based Lead-Free Ceramics for Optical Thermometry

Tuning the ferroelectric, dielectric and photoluminescence properties of 0.88(Na0.5Bi0.5)TiO₃-0.12BaTiO₃ ceramics by Sm ion doping