1. Upconversion luminescence, temperature sensing and internal heating behaviors of Er3+/Yb3+/Fe3+-tridoped NaBiF4 nanoparticles.
- Author
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Du, Peng, Zhang, Quan, Wang, Xinying, Luo, Laihui, and Li, Weiping
- Subjects
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LUMINESCENCE , *PHOTON upconversion , *LIGHT sources , *TEMPERATURE - Abstract
Series of Er3+/Yb3+/Fe3+-tridoped NaBiF 4 nanoparticles were synthesized through a simple precipitation reaction method at room temperature. The effect of the Fe3+ ions on the microstructure and upconversion (UC) luminescence properties of the developed samples were studied in detail. Through the Fe3+ ions doping engineering, the enhancement in both green and red UC emission intensities were observed and the optimal doping concentration for Fe3+ ions was revealed to be 30 mol%. Owing to the fluorescence intensity ratio technology, the optical thermometric performances of the resultant products in the temperature range of 303–543 K were investigated and the maximum sensor sensitivity of the studied nanoparticles was 0.0053 K−1 at 543 K. Moreover, the internal heating behaviors of the obtained nanoparticles were investigated and the product temperature was improved to 399 K when the pump power was set at 260 mW. Our systematic and complementary studies suggested that the Er3+/Yb3+/Fe3+-tridoped NaBiF 4 nanoparticles with splendid UC behaviors were poised as next-generation promising candidates for nanothermometer and optical heaters. • The Er3+/Yb3+/Fe3+-tridoped NaBiF 4 nanoparticles were successfully prepared at room temperature. • With introducing of Fe3+, both microstructure and UC emission performance of studied samples were tailored. • The maximum sensor sensitivity of the synthesized nanoparticles as high as 0.0053 K−1 at 543 K. • The prepared nanoparticles can convert the excitation light source into heat. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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