Journal
JOURNAL OF LUMINESCENCE
Volume 240, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jlumin.2021.118419
Keywords
Photoluminescence; Ferroelectricity; 0.92(Na0.5Bi0.5)TiO3-0.08 (Ba0.90Ca0.10)(Ti0.92Sn0.08)O-3: Sm3+; Optical temperature sensing
Categories
Funding
- National Natural Science Foundation of China [52061030, 11604147]
- Natural Science Foundation of the Jiangsu Higher Education Institutions of China [19KJA150011]
- Natural Science Foundation of Huaian [HAB202056]
- shuangqian program of Jiangxi province [jxsq2019101047]
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A series of Sm3+ doped lead-free piezoelectric ceramics were fabricated and their photoluminescence properties and temperature-dependent luminescence spectra were studied in detail. The ceramics showed good optical temperature sensing properties and stable performance in repeated heat-cooling cycles, indicating potential applications in multifunctional sensing devices combining optical temperature sensing and intrinsic ferroelectric properties.
A series of Sm3+ doped 0.92(Na0.5Bi0.5)TiO3-0.08(Ba0.90Ca0.10)(Ti0.92Sn0.08)O-3 (NBT-8BCTS: xSm(3+), x = 0-0.025) lead-free piezoelectric ceramics are fabricated via a conventional solid-state reaction method, and their phase structure, photoluminescence properties and temperature dependent of luminescence spectra are studied in detail. The emission spectra with dominant orange-red emission consist of four emission peaks at 542 nm, 598 nm, 644 nm and 709 nm, which are ascribed to the (4)G(5/2) (->) H-6(J/2) (J = 5, 7, 9, 11) transition of Sm3+ ions, respectively. Furthermore, the optical temperature sensing properties of the NBT-8BCTS: 0.01Sm(3+) ceramic in the temperature range between 313 K and 533 K are analyzed with a maximum relative sensitivity 1.29%K-1 at T = 463 K. Besides, the phosphors exhibit excellent stable temperature sensing performance under repeated heat-cooling cycles. These results suggest that the Sm3+ doped NBT-8BCTS ceramics may have potential applications in multifunctional sensing devices by integrating its optical temperature sensing and intrinsic ferroelectric property.
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