Zhao Zhiguo, Zhang Xian, Niu Xuying, Zhang Rui, Fang Zaijin, Chen Zhi, Jia Hong
College of Physics and Electronic Information, Henan Key Laboratory of Electromagnetic Transformation and Detection, Luoyang Normal University Luoyang 471934 China
Department of Optoelectronics Science, Harbin Institute of Technology at Weihai Weihai 264209 China.
RSC Adv. 2023 Oct 10;13(42):29419-29426. doi: 10.1039/d3ra05044k. eCollection 2023 Oct 4.
In this work, a glass ceramics (GC) containing KTbF nanocrystals was fabricated by controlled crystallization of an fluorosilicate glass heat-treatment. The microstructure, luminescence, and photoelectric properties of the GCs are systematically studied by X-ray diffraction, transmission electron microscopy, spectral analysis, and current-voltage (-) curves. The results show that the GC containing KTbF nanocrystals exhibit intense visible emission due to the 4f transition of Tb: D ( = 3, 4) → F ( = 0-6) upon excitation of ultraviolet (UV) light. In addition, a UV detector device based on the GC was fabricated, which has a large dynamic linear response range, fast response speed and high sensitivity. This study not only provides a new material for UV detector that can simplify the process of UV detection, but also highlight a new strategy for UV detection.
在本工作中，通过对氟硅酸盐玻璃进行热处理的控制晶化制备了一种含有K₃TbF₆纳米晶体的微晶玻璃（GC）。通过X射线衍射、透射电子显微镜、光谱分析和电流-电压（I-V）曲线对微晶玻璃的微观结构、发光和光电性能进行了系统研究。结果表明，含有K₃TbF₆纳米晶体的微晶玻璃在紫外（UV）光激发下，由于Tb³⁺的4f跃迁（⁷F₉/₂→⁵D₃,₄→⁷F₀₋₆）而呈现出强烈的可见光发射。此外，基于该微晶玻璃制备了一种紫外探测器器件，该器件具有大的动态线性响应范围、快速的响应速度和高灵敏度。本研究不仅为紫外探测器提供了一种能够简化紫外检测过程的新材料，还突出了一种新的紫外检测策略。
