| Quantum cutting for Er3+ sensitized Yb3+ infrared luminescence in YVO4:Er3+/Yb3+ phosphors |
Yanqiu Zhang1, Zhouhua Peng2, Xin Chen3, Duan Gao3, Xuezhu Sha3, Xizhen Zhang3, Jinsu Zhang3, Yongze Cao3, Yichao Wang3, Xiangping Li3, Sai Xu3, Hongquan Yu3, Baojiu Chen3
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1School of Air Transportation, Liaoning Vocational College of Light Industry, Dalian, 116100, Liaoning, People’s Republic of China
2School of Marine Electrical Engineering, Dalian Maritime University, Dalian, 116026, Liaoning, People’s Republic of China
3School of Science, Dalian Maritime University, Dalian, 116026, Liaoning, People’s Republic of China |
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Received: February 15, 2025; Revised: July 5, 2025 Accepted: July 26, 2025. Published online: August 10, 2025. |
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| ABSTRACT |
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Quantum cutting for Er3+ sensitized Yb3+ infrared luminescence in YVO4:Er3+/Yb3+ phosphors
Investigations on the Er3+ sensitized Yb3+ infrared luminescence, as well as the quantitative evaluation of quantum cutting (QC) efficiency for YVO4:Er3+/Yb3+ phosphors are still lacking. To fill the gap, a series of Er3+ (Yb3+) single doped and Er3+/Yb3+ co-doped YVO4 phosphors were prepared in this work to explore this. Firstly, two-step energy transfer process from Er3+ to Yb3+ was confirmed to achieve QC, which enables the Yb3+ infrared luminescence around 978 nm. Then, the QC efficiency was calculated according to energy transfer theory, radiative transition rates, nonradiative relaxation rates and fluorescence lifetimes. Secondly, energy transfer process from (VO4)3- to Yb3+ was verified by analyzing the spectral properties of YVO4:Yb3+ and YVO4:Er3+/Yb3+ phosphors. Therefore, the researches on spectral properties, the mechanisms for energy transfer and QC efficiency of YVO4:Er3+/Yb3+ phosphors will offer valuable theoretical information for their potential applications in silicon-based solar cells. |
| Key words:
YVO4:Er3+/Yb3+ phosphors · Quantum cutting · Luminescence efficiency · Energy transfer
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