Luminescence and temperature sensing properties of Er3+/Yb3+ co-doped 0.70Na0.5Bi0.5TiO3–0.30SrTiO3 ferroelectric ceramics
Er3+/Yb3+ co-doped 0.70Na0.5Bi0.5TiO3–0.30SrTiO3 (NBT–ST: Er3+/Yb3+) ferroelectric ceramics were synthesized by a solid state reaction method. Under 980 nm radiation excitation, a strong green emission band was obtained which was two-photon up-conversion mechanism. The radiative transition of (4S3/2, 2H11/2) to 4I15/2 of Er3+ indicated a temperature dependent behavior. With a change of the ratio of Er3+/Yb3+, the optimal up-conversion emission was obtained in the NBT–ST:0.005Er3+/0.125Yb3+ ceramics. In a temperature range of 83–643 K, the maximum sensitivity based on fluorescence intensity ratio technique (FIR524/548) was approximately 0.0053 K−1 at 543 K. It indicated that NBT–ST: Er3+/Yb3+ ferroelectric ceramics would be a potential candidate for temperature sensors.
This work was supported by the National Natural Science Foundation of China (Grant No. 51572195).
- 2.J. Ikuta, K. Maeda, T. Sakai, T. Ikari, K. Koughia, M. Munzar, S.O. Kasap, J. Mater. Sci.: Mater. Electron. 18, S231–S234 (2007)Google Scholar
- 4.H. Zou, Y. Hu, X. Zhu, D. Peng, X. Chai, X. Wang, B. Liu, D. Shen, J. Mater. Sci.: Mater. Electron. 28, 11921–11925 (2017)Google Scholar
- 6.Y. Miao, P. Wang, H. Guan, Y. Chen, J. Mater. Sci.: Mater. Electron. 26, 5748–5752 (2015)Google Scholar
- 9.Y. Gu, Y. Li, F. Zheng, X. Wang, J. Mater. Sci.: Mater. Electron. 28, 501–506 (2017)Google Scholar
- 13.U. Huang, L. Gao, Y. Hu, H. Da, J. Mater. Sci.: Mater. Electron. 18, 605–609 (2007)Google Scholar
- 14.F. Gao, L. Cheng, R.Z. Hong, J.J. Liu, Y.H. Yao, C.S. Tian, J. Mater. Sci.: Mater. Electron. 19, 1228–1232 (2008)Google Scholar
- 22.Y. Yang, C. Mi, F. Yu, Ceram. Int. 40, 875–880 (2014)Google Scholar