Suitable selection of high-energy state excitation to enhance the thermal stability of Eu3+ and the sensitivity of La2CaSnO6:Eu3+,Mn4+ temperature measuring materials

被引:7
作者
Duan, Feifei [1 ]
Wang, Lei [1 ]
Shi, Qiufeng [1 ]
Guo, Haijie [1 ]
Qiao, Jianwei [1 ]
Cui, Cai'e [1 ]
Huang, Ping [1 ]
机构
[1] Taiyuan Univ Technol, Coll Phys, Taiyuan 030024, Peoples R China
基金
中国国家自然科学基金;
关键词
UP-CONVERSION LUMINESCENCE; OPTICAL THERMOMETRY; PHOSPHORS; NANOPARTICLES; EFFICIENT; COLOR;
D O I
10.1039/d3tc02906a
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Luminescence thermal quenching in luminescent materials has posed a perplexing challenge. This study has elucidated an innovative approach for enhancing the thermal stability of Eu3+ ion doped materials. The synthesis of La2CaSnO6:Eu3+ materials was undertaken to investigate this phenomenon, revealing a noteworthy finding that the thermal stability of Eu3+ ions exhibited a remarkable improvement when excited at a specific wavelength corresponding to the H-5(3) energy level, surpassing the performance observed at other excitation wavelengths. Building upon this significant observation, the development of a La2CaSnO6:Eu3+,Mn4+ temperature probe was pursued. Interestingly, reverse thermal quenching of Eu3+ ion luminescence was observed upon adjusting the excitation wavelength to 318 nm. Under these optimized conditions, the La2CaSnO6:Eu3+,Mn4+ temperature probe achieved a maximum absolute sensitivity of 0.08523 K-1 along with a relative sensitivity of 2.954% K-1. These compelling results highlight the potential of the approach to enhance the thermal stability of Eu3+ ion doped materials and position La2CaSnO6:Eu3+,Mn4+ as a promising candidate for non-contact temperature sensing applications. In conclusion, this finding suggests that carefully selecting a suitable excitation wavelength corresponding to a high-energy state can significantly facilitate the utilization of Eu3+ ions in luminescence, temperature sensing, and other related fields.
引用
收藏
页码:14705 / 14713
页数:9
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