双窗宽带近红外机械发光在MgO基中
Yiyu Cai1, Jianqing Chang1, Jian Zhang1
1College of Physics and Optoelectronic Engineering, Faculty of Information Science and Engineering, Ocean University of China, Qingdao, China.
Advanced materials (Deerfield Beach, Fla.)
|January 27, 2026
概括
我们开发了新的氧化 (MgO) 材料用于近红外 (NIR) 机制发光 (ML). 这些宽带发射器可以在环境条件下进行压力可视化和生物机械成像.
科学领域:
- 材料科学 材料科学 材料科学
- 固态物理 固态物理
- 光电学是指光电子产品.
背景情况:
- 近红外 (NIR) 机制发光 (ML) 对于非侵入性压力可视化和生物机械成像至关重要.
- 现有的NIR ML材料往往受到狭窄的发射带宽的影响,并且需要暗场条件.
研究的目的:
- 建立氧化 (MgO) 作为宽带NIR ML的多功能平台.
- 为NIR-I和NIR-II窗口开发基于MgO的互补系统.
- 阐明基于MgO的ML和光谱变异背后的机制.
主要方法:
- 合成和表征了MgO:Cr3+和MgO:Ni2+ ML系统.
- 研究了各种机械刺激 (摩擦,冲击,张力,压缩,曲,扭曲) 的ML反应.
- 进行了涉及压电极化,脱位动力学和 triboelectric 效应的机械学研究.
主要成果:
- MgO:Cr3+ 呈现可调节的 NIR-I ML (700-1000 nm) 与广泛的 FWHM (94-188 nm) 的情况.
- MgO:Ni2+证明了超宽带NIR-II ML (1000-1700nm) 的FWHM为225nm,可以在环境光线中检测到.
- 确定了电荷分离机制和晶体场调制的协同作用,这是ML的关键.
结论:
- 建立了MGO作为NIR-I和NIR-II的宽带机械响应发射的强大平台.
- 揭示了耐用,适应环境的ML材料的设计原则.
- 在多式传感,结构健康监测和生物机械成像等领域的先进潜在应用.
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