改善近红外荧光粉CaSrO:Eu的发光性能——能量转移及其在乙醇溶液浓度检测中的应用
Improving the luminescence properties of the near-infrared phosphor CaSrO:Eu energy transfer and its application in the concentration detection of ethanol solutions.
作者信息
Liang Yuxuan, Du Pengfei, Wei Yanhong, Hu Xurui, Li Xiaojie, Wang Zhijun, Gong Jie, Liu Mengdi, Li Panlai, Ding Wenge
机构信息
National-Local Joint Engineering Laboratory of New Energy Photoelectric Devices, Hebei Key Laboratory of Optic-electronic Information and Materials, College of Physics Science & Technology, Hebei University Baoding 071002 China
School of Physical Science and Technology, Ningbo University Ningbo 315211 China
出版信息
RSC Adv. 2025 Jul 1;15(27):22154-22160. doi: 10.1039/d5ra02418h. eCollection 2025 Jun 23.
In this work, a near-infrared (NIR) phosphor CaSrO:Eu was prepared a solid-state method, and its luminescence properties were improved by co-doping with Ce ions. The decay curves of CaSrO:Ce, Eu confirmed that there was an obvious energy transfer from Ce to Eu, which enhanced the quantum efficiency of CaSrO:Eu. The thermal stability can also be enhanced by introducing Ce, which reduces the probability of non-radiative transitions at elevated temperatures, thereby minimizing electron loss. An NIR light emitting diode (LED) was fabricated by combining a blue LED chip with CaSrO:Ce, Eu, which was applied for the concentration detection of ethanol solutions.
在本工作中，采用固态法制备了近红外（NIR）荧光粉CaSrO:Eu，并通过Ce离子共掺杂改善了其发光性能。CaSrO:Ce, Eu的衰减曲线证实存在从Ce到Eu的明显能量转移，这提高了CaSrO:Eu的量子效率。引入Ce还可以提高热稳定性，降低高温下非辐射跃迁的概率，从而使电子损失最小化。通过将蓝色LED芯片与CaSrO:Ce, Eu相结合制备了近红外发光二极管（LED），并将其应用于乙醇溶液的浓度检测。
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