Superenhancement Photon Upconversion Nanoparticles for Photoactivated Nanocryometer

doi:10.1021/acs.nanolett.3c00495

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	Superenhancement Photon Upconversion Nanoparticles for Photoactivated Nanocryometer
	Q. Li; X. Xie; H. Wu; H. Chen; W. Wang; X. Kong and Y. Chang
刊名	Nano Letters
	2023
卷号	23 期号:8 页码:3444-3450
ISSN号	15306984
DOI	10.1021/acs.nanolett.3c00495
英文摘要	Highly doped lanthanide luminescent nanoparticles exhibit unique optical properties, providing exciting opportunities for many ground-breaking applications, such as super-resolution microscopy, deep-tissue bioimaging, confidentiality, and anticounterfeiting. However, the concentration-quenching effect compromises their luminescence efficiency/brightness, hindering their wide range of applications. Herein, we developed a low-temperature suppression cross-relaxation strategy, which drastically enhanced upconversion luminescence (up to 2150-fold of green emission) in Er3+-rich nanosystems. The cryogenic field opens the energy transport channel of Er3+ multiphoton upconversion by further suppressing phonon-assisted cross-relaxation. Our results provide direct evidence for understanding the energy loss mechanism of photon upconversion, deepening a fundamental understanding of the upconversion process in highly doped nanosystems. Furthermore, it also suggests the potential applications of upconversion nanoparticles for extreme ambient-temperature detection and anticounterfeiting. © 2023 American Chemical Society.
URL标识	查看原文
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/67635]
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	Q. Li,X. Xie,H. Wu,et al. Superenhancement Photon Upconversion Nanoparticles for Photoactivated Nanocryometer[J]. Nano Letters,2023,23(8):3444-3450.
APA	Q. Li,X. Xie,H. Wu,H. Chen,W. Wang,&X. Kong and Y. Chang.(2023).Superenhancement Photon Upconversion Nanoparticles for Photoactivated Nanocryometer.Nano Letters,23(8),3444-3450.
MLA	Q. Li,et al."Superenhancement Photon Upconversion Nanoparticles for Photoactivated Nanocryometer".Nano Letters 23.8(2023):3444-3450.