Zhang Shuaishuai, Qin Shuohao, Xiao Yuhao, Liu Zhaoyi, Hu Xiaorui, Xiao Zongliang, Huang Decai, Han Lei, Ye Xinyu
College of Rare Earths, Jiangxi University of Science and Technology, Ganzhou 341000, China.
North Institute of Science and Technical Information, Beijing 100089, China.
Dalton Trans. 2025 Apr 28;54(17):6717-6740. doi: 10.1039/d4dt03538k.
Near-infrared (NIR) spectroscopy has the characteristics of invisible human eyes, strong ability to penetrate biological tissues, fast response speed, non-destructive testing, and avoidance of autofluorescence interference. Therefore, NIR luminescent materials are widely used in various fields, including food monitoring, night vision supplementation, face recognition, imaging, biological analysis, safety monitoring, autonomous driving, and agricultural lighting. However, the lack of NIR luminescent materials with high quantum efficiency, wide bandwidth, and weak thermal quenching still hinders the development of NIR spectroscopy technology. Herein, we review the current research progress and luminescence mechanisms in NIR luminescent materials doped with rare earth (RE) ions, transition metal (TM) ions, and main-group ions, including Yb, Pr, Er, Eu, Nd, Ni, Mn, Mn, Fe, Cu, Cr, Bi, Sb and other ion-doped NIR fluorescent materials. The optical properties, enhancement mechanisms of NIR luminescence, and modulation strategies to adjust the emission wavelength of active ion-doped NIR luminescent materials are highlighted, respectively. We further elaborate on the possible solutions to the design of broadband NIR luminescent materials. This study aims to help researchers in related fields understand the current research status, challenges, and future development trends of RE ion-, TM ion-, and main-group ion-doped NIR luminescent materials.
近红外（NIR）光谱具有人眼不可见、穿透生物组织能力强、响应速度快、无损检测以及避免自发荧光干扰等特点。因此，近红外发光材料广泛应用于各个领域，包括食品监测、夜视补充、人脸识别、成像、生物分析、安全监测、自动驾驶和农业照明等。然而，缺乏具有高量子效率、宽带宽和弱热猝灭的近红外发光材料仍然阻碍着近红外光谱技术的发展。在此，我们综述了掺杂稀土（RE）离子、过渡金属（TM）离子和主族离子的近红外发光材料的当前研究进展和发光机制，包括镱（Yb）、镨（Pr）、铒（Er）、铕（Eu）、钕（Nd）、镍（Ni）、锰（Mn）、铁（Fe）、铜（Cu）、铬（Cr）、铋（Bi）、锑（Sb）等离子掺杂的近红外荧光材料。分别突出了活性离子掺杂近红外发光材料的光学性质、近红外发光增强机制以及调节发射波长的调制策略。我们进一步阐述了宽带近红外发光材料设计的可能解决方案。本研究旨在帮助相关领域的研究人员了解稀土离子、过渡金属离子和主族离子掺杂近红外发光材料的当前研究现状、挑战和未来发展趋势。
