Transmittance, Photoluminescence and Electrical Properties in Er-Doped 0.98K0.5Na0.5NbO3-0.02Sr(Yb0.5Ta0.5)O3 Ferroelectric Ceramics

• Published in: Journal of electronic materials 2022-07, Vol.51 (7), p.3476-3484
• Main Authors: Liu, Xiang, Hu, Gangbin, Wu, Huangtao, Shi, Shaoyang, Wang, Hua, Xu, Jiwen, Yang, Ling, Qiu, Wei
• Format: Article
• Language: English
• Subjects: Ceramics; Characterization and Evaluation of Materials; Chemistry and Materials Science; Doping; Electrical properties; Electronics and Microelectronics; Energy transfer; Ferroelectric materials; Ferroelectricity; Instrumentation; Loose powder sintering; Luminescence; Materials Science; Multifunctional materials; Optical and Electronic Materials; Optical properties; Original Research Article; Photoelectricity; Photoluminescence; Solid State Physics; Upconversion
• ISSN: 0361-5235; 1543-186X
• DOI: 10.1007/s11664-022-09626-3

Er 3+ -doped 0.98K 0.5 Na 0.5 NbO 3 -0.02Sr(Yb 0.5 Ta 0.5 )O 3 (KNN-SYT) transparent ferroelectric ceramics were prepared by a pressureless sintering method. The influence of Er 3+ doping on the structural, optical and electrical properties of KNN-SYT ceramics is explored. X-ray diffraction analysis revealed that the doping of Er 3+ does not change the structure of the ceramic's pseudocubic phase. Er 3+ -doped KNN-SYT ceramics exhibit excellent upconversion luminescence properties. Because of the presence of Yb 3+ in KNN-SYT, continuous energy transfer occurs causing higher intensity upconversion luminescence. The maximum luminescence intensity of 3.21 × 10 6 was reached at x  = 0.5. At the same time, these ceramics still have good optical transparency and electrical properties when the Er 3+ content x