在类似钙钛矿的Li3Mg2SbO6:Ni2+荧光粉中高效宽带NIR-II发光，用于光谱应用。

IF 3.3 2区物理与天体物理 Q2 OPTICS

Optics letters Pub Date : 2025-02-01 DOI:10.1364/OL.547485

Wanglai Song, Jiyou Zhong, Ying Li, Wenhua Li

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引用次数: 0

摘要

在近红外第二生物窗口（1000 ~ 1700 nm）发射的荧光粉在生物成像、食品质量分析和无损检测等方面具有广阔的应用前景。然而，在这个发射范围内开发一种高效的近红外荧光粉是一个重大挑战。在此，我们报道了一种类似钙钛矿的Li3Mg2SbO6:Ni2+荧光粉，在近紫外395 nm激发下，其宽带近红外发射峰位于1380 nm，半峰全宽（FWHM）为281 nm。优化后的样品Li3Mg1.985SbO6:0.015Ni2+具有较高的内量子效率（IQE = 87.1%）。此外，还实现了该器件的多功能应用，证明了该材料具有良好的实用性。

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Efficient broadband NIR-II luminescence in a perovskite-like Li₃Mg₂SbO₆:Ni²⁺ phosphor for spectroscopy applications.

Phosphors with emission in the second near-infrared (NIR) bio-window (1000 nm-1700 nm) have promising applications in bio-imaging, food quality analysis, and nondestructive examination. However, developing an efficient NIR phosphor in this emission range is a significant challenge. Herein, we report a perovskite-like Li₃Mg₂SbO₆:Ni²⁺ phosphor, which exhibits a broadband NIR emission peaking at 1380 nm and a full width at half maximum (FWHM) of 281 nm under near-ultraviolet 395 nm excitation. The optimized sample, Li₃Mg_1.985SbO₆:0.015Ni²⁺, demonstrates a rarely high internal quantum efficiency (IQE = 87.1%). Furthermore, multifunctional applications of the fabricated device were realized, demonstrating the excellent practicability of this material.

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来源期刊

Optics letters 物理-光学

CiteScore

6.60

自引率

8.30%

发文量

2275

审稿时长

1.7 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.