用于近红外光谱分析的新型近红外荧光粉 Li1.6Mg1.6Sn2.8O8:Cr3+

IF 5.1 2区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Xiaowei Zhang, Dashuai Sun, Pengcheng Luo, Luhui Zhou, Xinyu Ye and Hongpeng You
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引用次数: 0

摘要

近红外荧光粉发射范围广、量子产率高、吸收效率好,可满足近红外光谱中不同波长的探测需求,具有很大的发展潜力。本研究开发了一种新型近红外荧光粉 Li1.6Mg1.6Sn2.8O8:Cr3+(简称 LMSO:Cr3+),其近红外发射宽带为 600 至 1200 nm,峰值为 860 nm,半最大全宽为 187 nm。它的内部量子效率为 51.6%,吸收效率高达 59%,外部量子效率为 30.7%。利用这种材料制备的近红外 pc-LED 器件在 100 mA 驱动电流下可实现 25.20 mW 的高近红外输出功率,在 10 mA 驱动电流下可实现 14.71% 的光电转换效率,在近红外光谱检测、生物组织穿透和夜视成像方面表现出色。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

A novel near-infrared phosphor Li1.6Mg1.6Sn2.8O8:Cr3+ for near-infrared spectral analysis†

A novel near-infrared phosphor Li1.6Mg1.6Sn2.8O8:Cr3+ for near-infrared spectral analysis†

A novel near-infrared phosphor Li1.6Mg1.6Sn2.8O8:Cr3+ for near-infrared spectral analysis†

Near infrared (NIR) phosphors have a wide emission range, high quantum yield and good absorption efficiency, which can meet the detection needs of different wavelengths in the NIR spectrum, exhibiting great developmental potential. In this study, a novel near-infrared phosphor Li1.6Mg1.6Sn2.8O8:Cr3+ (referred to as LMSO:Cr3+) has been developed, with a near-infrared emission wide-band from 600 to 1200 nm, a peak at 860 nm, and a full width at half maximum of 187 nm. It possesses an internal quantum efficiency of 51.6% and a high absorption efficiency of 59%, leading to an external quantum efficiency of 30.7%. A NIR pc-LED device prepared using this material can achieve a high NIR output power of 25.20 mW at a driving current of 100 mA and a photoconversion efficiency of 14.71% at a driving current of 10 mA, exhibiting excellent performance in near-infrared spectroscopic detection, penetration of biological tissues, and night vision imaging.

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来源期刊
Journal of Materials Chemistry C
Journal of Materials Chemistry C MATERIALS SCIENCE, MULTIDISCIPLINARY-PHYSICS, APPLIED
CiteScore
10.80
自引率
6.20%
发文量
1468
期刊介绍: The Journal of Materials Chemistry is divided into three distinct sections, A, B, and C, each catering to specific applications of the materials under study: Journal of Materials Chemistry A focuses primarily on materials intended for applications in energy and sustainability. Journal of Materials Chemistry B specializes in materials designed for applications in biology and medicine. Journal of Materials Chemistry C is dedicated to materials suitable for applications in optical, magnetic, and electronic devices. Example topic areas within the scope of Journal of Materials Chemistry C are listed below. This list is neither exhaustive nor exclusive. Bioelectronics Conductors Detectors Dielectrics Displays Ferroelectrics Lasers LEDs Lighting Liquid crystals Memory Metamaterials Multiferroics Photonics Photovoltaics Semiconductors Sensors Single molecule conductors Spintronics Superconductors Thermoelectrics Topological insulators Transistors
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