Effects of Er-doping on the Structure and Photoelectric Properties of 0.825K_0.5Na_0.5NbO₃-0.175Sr (Yb_0.5Nb_0.5) O₃ Ceramics

Abstract

Multifunctional ceramics of 0.825K_0.5Na_0.5NbO₃-0.175Sr(Yb_0.5Nb_0.5)O₃- x%Er with ferroelectric, transparent and luminescent properties were obtained by doping Er. The effects of Er-doping on the structure, luminescence and electrical properties of the ceramics were studied. After Er doping, the ceramics have luminescent properties and the luminescence intensity reaches the maximum when x=0.75. The ceramics still have good light transmission, but the transmittance decreases with the increase of Er-doping content due to the change of phase structure from pseudo-cubic phase to three-phase orthogonality. The energy storage properties is also greatly improved, and the W _rec and the η of the ceramics reach the maximum value of 0.31 J/cm³ and 94.6% when x=0.25, respectively. At the same time, the maximum electro-induced strain value is 0.031%.

Keywords

KNN-Sr(Yb_0.5Nb_0.5)O₃ / up-conversion luminescence / ferroelectric / multi-function

References

[1] Hu G, Wang J, Liu X, et al. Structural, Transmittance, Ferroelectric, Energy Storage, and Electrical Properties of K_0.5Na_0.5NbO₃ Ceramics Regulated by Sr(Yb_0.5Ta_0.5)[J]. J. Mater. Sci.: Mater. Electron., 2021, 32(17): 22 300-22 308.

[2] Pelaiz B A, Yang T Q, Garcia Z O, et al. Multifunctional Response of Lanthanum-modified PZT Relax-or Ferroelectric System with Improved Electrocaloric Effect and Energy Storage Performance[J]. J. Alloys Compd., 2021, 858(25): 157 704

[3] Sun Y, Wang H, Liu G, et al. High Energy Storage Efficiency and High Electro-strictive Coefficients in BNT—BS—xBT Ferroelectric Ceramics[J]. J. Mater. Sci.: Mater. Electron., 2020, 31(7): 5 546-5 553.

[4] Xu L, Zhang J W, Xu C X, et al. Weak Localization Based Enhancement of Lasing Emission under Plasma Atmosphere in Nd³⁺ Doped (Pb,La)(Zr,Ti)O₃ Disordered Ceramics[J]. J. Luminescence, 2016, 173: 185-191.

[5] Panda P K. Review: Environmentally Friendly Lead-free Piezoelectric Materials[J]. Mater. Sci., 2009, 44: 5 049-5 062.

[6] Wang H, Zhai X, Xu J, et al. Effect of Sintering Time on Structure and Properties in CuO-doping KNN-LS-BF Piezoelectric Ceramics[J]. J. Wuhan University of Technology-Mater. Sci. Ed., 2019, 34(2): 308-311.

[7] Zhao Y J, Ge Y Y, Zhang X W, et al. Comprehensive Investigation of Er₂O₃ Doped (Li,K,Na)NbO₃ Ceramics Rendering Potential Application in Novel Multifunctional Devices[J]. J. Alloys Compd., 2016, 683: 171-177.

[8] Wang H, Zhao X, Xu J, et al. Structure and Properties of (1−x)[(K_0.5Na_0.5)NbO₃-LiSbO₃]-xBiFe_0.8Co_0.2O₃ Lead-free Piezoelectric Ceramics[J]. Bull. Mater. Sci., 2016, 39(3): 743-747.

[9] Wang K, Shen Z Y, Zhang B P, et al. Current Status, Opportunities and Challenges of Potassium Sodium Niobate Based Lead-free Piezoelectric Ceramics[J]. J. Inorganic Mater., 2014, 29(1): 13-22. in Chinese)

[10] Feng S, Li F, Xiao D. Advances in Preparation Technology of Potassium Sodium Niobate Based Lead-free Piezoelectric Ceramics[J]. J. Functional Mater., 2014, 45(19): 19 001-19 005.

[11] Qu B, Du H, Yang Z. Lead-free Relax-or Ferroelectric Ceramics with High Optical Transparency and Energy Storage Ability[J]. J. Mater. Chem. C, 2016, 4(9): 1 795-1 803.

[12] Zhang X, Yang D, Yang Z, et al. Transparency of K_0.5N_0.5NbO₃-Sr(Mg_1/3Mb_2/3)O₃ Lead-free Ceramics Modulated by Relax-or Behavior and Grain Size[J]. Ceram. Int., 2016, 42(16): 17 963-17 971.

[13] Liu H, Wang J, Wang H, et al. Er³+ and Sr(Bi_0.5Nb_0.5)O₃-modified (K_0.5Na_0.5)NbO₃: A New Transparent Fluorescent Ferroelectric Ceramic with High Light Transmittance and Good Luminescence Performance[J]. Ceramics International, 2022, 48(3): 4 230-4 237.

[14] Chai Q, Zhao X, Chao X, et al. Enhanced Transmittance and Piezoelectricity of Transparent K_0.5Na_0.5NbO₃ Ceramics with Ca(Zn_1/3Nb_2/3) O₃ Additives[J]. RSC Adv., 2017, 7(45): 28 428-28 437.

[15] Hu G, Liu H, Wang J, et al. Regulating the Structural, Transmittance, Ferroelectric, and Energy Storage Properties of K_0.5Na_0.5NbO₃ Ceramics Using Sr(Yb_0.5Nb_0.5)O₃[J]. Electron. Mater., 2021, 50(3): 968-977.

[16] Zhang Q, Tang J, Du P, et al. Reversible and Color Controllable Emissions in Er³⁺/Pr³⁺-Co-doped K_0.5Na_0.5NbO₃ Ceramics with Splendid Photochromic Properties for Anti-counterfeiting Applications[J]. J. Euro. Ceram. Soc., 2021, 40(3): 1 904-1 916.

[17] Sun Y, Wang H, Zhou C, et al. Enhancement of the Up-conversion Luminescence Performance of Ho³⁺-doped 0.825K_0.5Na_0.5NbO₃-0.175 Sr(Yb_0.5Nb_0.5)O₃ Transparent Ceramics by Polarization[J]. Bull. Mater. Sci., 2021, 44: 139-1–6.

[18] Cao S, Chen Q, Liu J, et al. A Novel Photochromic Ceramics with Reversible Luminescence Modulation and Light Bleaching Behavior: Sm³⁺-doped KSr₂Nb₅O₁₅[J]. J. Euro. Ceram. Soc., 2020, 40(15): 6 061-6 072.

[19] Awan M Q, Ahmad J, Berlie A, et al. The Upper Manganese Doping Limit and Its Effects on Physical Properties of Lead-free Bi_0.5Na_0.5TiO₃ Ceramics[J]. Ceram. Int., 2018, 44(11): 12 767-12 773.

[20] Wu J, Xiao D, Wang Y, et al. Compositional Dependence of Phase Structure and Electrical Properties in (K_0.42Na_0.58)NbO₃-LiSbO₃ (K_0.42Na_0.58)NbO₃-LiSbO₃ Lead-free Ceramics[J]. J. Appl. Phys., 2007, 102: 114 113.

[21] Chauhan A, Patel S, Vaish R, et al. Anti-ferroelectric Ceramics for High Energy Density Capacitors[J]. Materials, 2015, 8(12): 8 009-8 031.

[22] Li Y, Cao W, Li Q, et al. Electric Field Induced Metastable Ferroelectric Phase and Its Behavior in (Pb,La) (Zr,Sn,Ti)O₃ Antiferroelectric Single Crystal Near Morphotropic Phase Boundary[J]. Appl. Phys. Lett., 2014, 104(5): 1-4.

[23] Xu Y, Yan Y, Young S E, et al. Influence of Perpendicular Compressive Stress on the Phase Transition Behavior in (Pb, La, Ba)(Zr, Sn, Ti)O₃ Antiferroelectric Ceramics[J]. Ceram. Inter., 2016, 42(1): 721-726.

[24] Xiao S G, Yang X L, Liu Z W. Purple Up-conversion Luminescence of Er, Yb Co-doped Fluorine Oxygen Mixture Glass[J]. J. Luminescence, 2000, 21(4): 359-362.