在Mo4+-激活金属化物中近红外发光,用于高级光电子
Xiaoshuang Li1, Jiahong Li1, Bo Wang1
1School of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong 529020, P.R. China.
Inorganic chemistry
|November 6, 2025
概括
研究人员使用晶体场扭曲工程开发了一种新的近红外 (NIR) . 这种Mo4+激活材料实现了高级光电子和成像应用的高量子效率和宽带发射.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 光电学是指光电子产品.
背景情况:
- 高效,稳定,宽带近红外 (NIR) 光对智能设备至关重要.
- 现有的NIR光器面临量子效率和光谱范围的挑战.
研究的目的:
- 为了设计一种具有增强性能的新型Mo4+激活NIR.
- 探索Cs2ZnCl4中的晶体场扭曲工程,用于NIR发光.
主要方法:
- 在零维Cs2ZnCl4主机中进行晶场扭曲工程.
- 调查Mo4+兴奋剂及其协调环境.
- 用NIR光转换LED (pc-LED) 的制造和测试.
主要成果:
- 从Mo4+在Cs2中的ZnCl4中实现了前所未有的宽带NIR发射 (960nm,fwhm∼206nm).
- 观察到扭曲驱动的转换到八面体Mo4+协调,产生78.7%的内部量子效率.
- 经过证明的热稳定性,环境稳定性,以及在成像NIR pc-LED中成功应用.
结论:
- 水晶场扭曲工程是开发高效NIR光的可行策略.
- 激活Mo4+的Cs2ZnCl4为先进的光电子设备提供了一个有前途的材料.
- 该研究扩展了光电子学中4d过渡金属离子的应用.
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