发光
荧光粉
红外线的
激发态
半最大全宽
激活剂(遗传学)
近红外光谱
材料科学
量子效率
荧光
猝灭(荧光)
光电子学
离子
分析化学(期刊)
化学
光学
物理
原子物理学
基因
有机化学
生物化学
色谱法
作者
Xinguo Zhang,Shuai Chen,Xin Chen,Zhongxiang Cai,Peican Chen,Qi Pang,Liya Zhou
出处
期刊:Dalton Transactions
[The Royal Society of Chemistry]
日期:2022-01-01
卷期号:51 (37): 14243-14249
被引量:14
摘要
Broadband near-infrared (NIR) materials have recently evoked considerable interest for versatile applications, but the choices of efficient emitters for NIR phosphors are rather limited. Herein, an Fe3+-activated NaScSi2O6 phosphor has been successfully synthesized by a solid-state reaction method. A broad NIR emission band is observed at 900 nm when excited at 300 nm ultraviolet light, reaching a full-width at half maximum (FWHM) of 135 nm and an internal quantum efficiency (IQE) of 13.3%. The luminescence is related to 3d-3d transitions of Fe3+ in the octahedral site, and verifies the effectiveness of the Fe3+ activator in realizing efficient NIR emission. The emission intensity of Fe3+ ions shows a linear quenching tendency in the temperature range of 293-433 K. The feasibility of the as-synthesized phosphors in applications such as NIR luminescence thermometry and NIR patches was also investigated.
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