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开发一种近红外石榴,具有近单位的内部量子效率和广泛的光谱可调性

Ying Li¹, Jiyou Zhong^1,2

¹School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China.

ACS applied materials & interfaces

|September 23, 2025

概括

新的近红外转换发光二极管 (NIR pc-LED) 实现了高效率和可调节的排放. 这些先进的NIR pc-LED为各种光谱应用提供了强大的热稳定性.

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:

近红外转换发光二极管 (NIR pc-LED) 对便携式智能设备至关重要.
开发具有高效率,热稳定性和可调节光谱的NIR光器是一项挑战.

研究的目的:

设计和合成用于NIR pc-LED应用的新型石榴石型光体.
评估它们的性能,包括效率,热稳定性和光谱鱼性.
在多功能光谱学中展示他们的潜力.

主要方法:

石榴石类型的Ca2GdMA MB Ge3O12:Cr3+ (MA = Zn, Mg; MB = Sc, In) 被合成了.
描述了光发性质,内部量子效率 (IQE) 和热稳定性.
通过调整[Na+-Gd3+]替代率来实现光谱调整.

主要成果:

Ca2GdZnScGe3O12:Cr3+呈现出以795 nm为中心的宽带发射,在465 nm激发下具有97%的IQE.
观察到高热稳定性,在423K时保持83.4%的排放强度.
从795到870nm实现了可调节的发射,IQE>90%到830nm.

结论:

合成的Cr3+合石榴石光体显示出对NIR pc-LED的优越性能.
这些材料提供了卓越的效率,热稳定性和光谱可调性.
证实了在非破坏性测试,信息加密和有机物质分析方面的潜在应用.

关键词:

有效的高效的高效.石榴石的石榴石是指一个石榴石的石榴石.接近红外线的近红外线和的使用方法鱼能力鱼能力

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