High-temperature near-infrared imaging of glass ceramics with thermometric functionality

IF 5.8 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Journal of Alloys and Compounds Pub Date : 2025-05-05 DOI:10.1016/j.jallcom.2025.180764

Peng Zhang , Sai Li , Xiuxia Yang , Minghui Long , Jiabo Sun , Xuhui Xu , Ping Liu

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引用次数: 0

Abstract

Near-infrared (NIR) imaging technology offers several advantages, including reduced background fluorescence, deep penetration, and high resolution. It is widely applied in various fields, such as medical diagnosis, treatment, night vision, and quality monitoring. However, current NIR imaging materials are unsuitable for high-temperature applications, such as industrial quality inspection and food safety monitoring. This study introduces the Ba₂LaF₇: Yb³⁺, Tm³⁺ glass-ceramic material designed for high-temperature NIR imaging and precise temperature measurement. The crystallization properties of Ba₂LaF₇ glass-ceramics (GC) can be controlled by using Yb³⁺ ions as nucleating agents, which promoted the growth of Ba₂LaF₇ nanocrystalline and altered the around crystal field environment of RE ions, preventing the quenching of the luminescence concentration of the RE ions. The temperature-sensing performance of Tm³⁺ between 701 and 808 nm is assessed for the optimized sample, demonstrating a maximum sensitivity of approximately 0.00046 K⁻¹ at 573 K. NIR imaging technology enables the detection of internal structures of various objects in high-temperature environments. This technology holds significant potential for applications in high-temperature quality inspection and related fields.

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具有测温功能的玻璃陶瓷高温近红外成像

近红外（NIR）成像技术具有几个优点，包括减少背景荧光，深穿透和高分辨率。它广泛应用于医疗诊断、治疗、夜视、质量监控等各个领域。然而，目前的近红外成像材料不适合高温应用，如工业质量检测和食品安全监测。本研究介绍了用于高温近红外成像和精密测温的Ba2LaF7: Yb3+， Tm3+玻璃陶瓷材料。采用Yb3+离子作为成核剂可以控制Ba2LaF7微晶玻璃（GC）的结晶性能，促进了Ba2LaF7纳米晶的生长，改变了RE离子晶体周围的场环境，防止了RE离子发光浓度的猝灭。优化后的Tm3+在701 ~ 808 nm范围内的温度传感性能进行了评估，在573 K处的最大灵敏度约为0.00046 K−1。近红外成像技术可以在高温环境下检测各种物体的内部结构。该技术在高温质量检测及相关领域具有巨大的应用潜力。

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来源期刊

Journal of Alloys and Compounds 工程技术-材料科学：综合

CiteScore

11.10

自引率

14.50%

发文量

5146

审稿时长

67 days

期刊介绍： The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.