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Updated: Jan 16, 2026

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Low-energy Cathodoluminescence for OxyNitride Phosphors
Published on: November 15, 2016
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高效和热稳定的多功能近红外发射光器作为多种应用的光源
Zutao Fan1, Jinhong Chen1, Chengxue Deng1
1International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China.
Journal of colloid and interface science
|September 26, 2025
概括
这项研究提出了新的近红外 (NIR) 发光 Lu3Ga5O12:Cr3+ 光体,具有高效率和抗热火性能. 这些材料对植物生长LED,生物监测和夜视应用具有前景.
科学领域:
- 材料科学 材料科学 材料科学
- 光电学是指光电子产品.
- 固态化学 固态化学
背景情况:
- 近红外 (NIR) 发光材料对于检测,夜视和传感方面的先进光源至关重要.
- 开发高效和稳定的NIR发射器对于克服当前光电子设备的局限性至关重要.
研究的目的:
- 为了研究Cr3+激活的Lu3Ga5O12光体的NIR发光特性.
- 探索这些的潜在应用在转换LED (pc-LED),生物监测和夜视照明中.
- 通过能量转移机制来设计扩展的NIR发射.
主要方法:
- 合成和 Lu3Ga5O12:Cr3+ 无机氧化的表征.
- 在蓝光激发下评估NIR发射效率和反热火行为.
- 用于机械发光研究的聚合物复合材料 (Lu3Ga5O12:Cr3+与PDMS) 的制造.
- 使用Nd3+和Er3+离子进行能量传输路径的建设,以实现扩展的NIR发射.
主要成果:
- 3Ga5O12:Cr3+体表现出高效率 (89.5%) 的NIR发射与优异的反热火 (107.95%的强度保留在440K).
- 这些可以为植物生长提供高效率的LED光源,从而有可能改善作物发育.
- 在用于生物监测的 Lu3Ga5O12:Cr3+ 化 PDMS 薄膜中观察到 NIR 机制发光.
- 通过Cr3+向Nd3+/Er3+的能量转移 (90%@Nd3+,59%@Er3+) 实现了高达1650nm的扩展NIR发射,从而实现了NIR-II应用,如夜视.
- 基于Er3+排放,开发了一个用于非侵入性溶液分析的检测平台.
结论:
- Cr3+激活的Lu3Ga5O12光体为高性能NIR光源提供了一个有前途的平台.
- 抗热火性能有利于pc-LED的稳定运行,特别是用于园艺应用.
- 可调节的NIR发射和机械发光为先进的传感,监控和照明技术开辟了道路.
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