Thermally enhanced near-infrared luminescence in (CaScO4)-O-2: Yb-3+/Nd-3+ nanorods for temperature sensing and photothermal conversion

doi:10.1016/j.ceramint.2022.04.337

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	Thermally enhanced near-infrared luminescence in (CaScO4)-O-2: Yb-3+/Nd-3+ nanorods for temperature sensing and photothermal conversion
	G. T. Xiang; M. L. Yang; Z. Liu; Y. J. Wang; S. Jiang; L. Li; X. J. Zhou; L. Ma; X. J. Wang and J. H. Zhang
刊名	Ceramics International
	2022
卷号	48 期号:16 页码:23436-23443
ISSN号	0272-8842
DOI	10.1016/j.ceramint.2022.04.337
英文摘要	Non-invasive photothermal therapy (PTT) is proposed as a powerful method for cancer treatment, in which a precise temperature monitoring is strongly recommended during the photothermal conversion process to prevent the damage of normal cells. Herein, ultra-sensitive optical thermometry with excellent resolution and outstanding light-to-heat conversion are simultaneously realized in CaSc2O4: Yb3+/Nd3+ nanorods. The temperature sensing of the nanorods is accomplished through fluorescence intensity ratio (FIR) technology based on the thermally coupled levels (TCLs) Nd3+: 4Fj (j = 7/2, 5/2, 3/2), of which the obtained absolute sensitivity is about 6.5 times larger than the optimal value of TCLs-based thermometers reported previously. Meanwhile, an intense thermal enhancement of Nd3+: 4Fj (j = 7/2, 5/2, 3/2) -> 4I9/2 transition is found due to the efficiency improvement of phonon-assisted energy transfer process between Yb3+ ions and Nd3+ ions. The penetrability of the near-infrared light emitting by Nd3+ ions is determined by a simple ex vivo experiment, indicating a penetration depth of 8 mm in the biological tissues with negligible effect on FIR values. Beyond that, the nanorods show remarkable photothermal conversion capacity under the excitation of 980 nm wavelength. The properties mentioned above show enormous potentiality of the present nanorods for PTT along with a real-time temperature sensing.
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语种	英语
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/67168]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	G. T. Xiang,M. L. Yang,Z. Liu,et al. Thermally enhanced near-infrared luminescence in (CaScO4)-O-2: Yb-3+/Nd-3+ nanorods for temperature sensing and photothermal conversion[J]. Ceramics International,2022,48(16):23436-23443.
APA	G. T. Xiang.,M. L. Yang.,Z. Liu.,Y. J. Wang.,S. Jiang.,...&X. J. Wang and J. H. Zhang.(2022).Thermally enhanced near-infrared luminescence in (CaScO4)-O-2: Yb-3+/Nd-3+ nanorods for temperature sensing and photothermal conversion.Ceramics International,48(16),23436-23443.
MLA	G. T. Xiang,et al."Thermally enhanced near-infrared luminescence in (CaScO4)-O-2: Yb-3+/Nd-3+ nanorods for temperature sensing and photothermal conversion".Ceramics International 48.16(2022):23436-23443.