1. Enhanced photoluminescence and ferro/piezoelectric performance in piezo-luminescent materials with outstanding water resistance and thermal stability.
- Author
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Ma, Chunlin, Wang, Xingyu, Tan, Weishi, Zhou, Weiping, Wang, Xiaoxiong, Cheng, Zhenzhi, Chen, Guibin, and Zhai, Zhangyin
- Subjects
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THERMAL stability , *THERMAL resistance , *PHOTOLUMINESCENCE , *GEOTHERMAL resources , *CERAMIC materials , *PHOSPHORS , *ENERGY harvesting , *PHOSPHORESCENCE - Abstract
Sm3+-Modified (1 − x)Na0.5Bi0.5TiO3-xCaTiO3 (NBT-xCT:Sm3+) piezo-luminescent ceramic materials were synthesized to investigate the influence of CaTiO3 (CT) concentration on their photoluminescence and electrical performance. Under 480 nm irradiation, the NBT-xCT:Sm3+ samples exhibit prominent orange-red emission, with a prime emission peak centered at 597 nm. A moderate amount of CT doping in the Sm3+-modified NBT ceramics boosts both their photoluminescence and piezoelectric properties significantly, with NBT-0.04CT:Sm3+ showing the optimal performance. Furthermore, outstanding luminescence thermal stability over a temperature range of 293–473 K and superior water resistance behavior are achieved in the NBT-0.04CT:Sm3+ ceramic. These results indicate that NBT-xCT:Sm3+ piezo-luminescent ceramics show great potential applications in white LEDs, as well as novel optical-electronic multifunctional devices. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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