Cross Relaxation Channel Tailored Temperature Response in Er3+-rich Upconversion Nanophosphor

doi:10.1002/anie.202306585

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	Cross Relaxation Channel Tailored Temperature Response in Er3+-rich Upconversion Nanophosphor
	K. Wu, E. Wang, J. Yuan, J. Zuo, D. Zhou, H. Zhao, Y. Luo, L. Zhang, B. Li, J. Zhang, L. Tu and H. Zhang
	2023
发表期刊	Angewandte Chemie - International Edition
ISSN	14337851
卷号	62 期号:33
摘要	Recently high doping of lanthanide ions (till 100 %) is realized unprecedentedly in nanostructured upconversion (UC) phosphors. However, oddly enough, this significant breakthrough did not result in a corresponding UC enhancement at ambient temperature, which hinders the otherwise very interesting applications of these materials in various fields. In this work, taking the Er3+-rich UC nanosystem as an example, we confirm unambiguously that the phonon-assisted cross relaxation (CR) is the culprit. More importantly, combining the theoretical modeling and experiments, the precise roles of different CR channels on UC energy loss are quantitatively revealed. As a result, lowering the temperature can exponentially enhance the relevant UC luminescence by more than two orders of magnitude. Our comprehension will play an important role in promoting the UC performance and further application of high doping rare earth materials. As a proof of concept, an Er3+-rich core/multi-shell nanophosphor is exploited which demonstrates the great potential of our finding in the field of ultra-sensitive temperature sensing. © 2023 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH.
DOI	10.1002/anie.202306585
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收录类别	sci ; ei
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/68550
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	K. Wu, E. Wang, J. Yuan, J. Zuo, D. Zhou, H. Zhao, Y. Luo, L. Zhang, B. Li, J. Zhang, L. Tu and H. Zhang. Cross Relaxation Channel Tailored Temperature Response in Er3+-rich Upconversion Nanophosphor[J]. Angewandte Chemie - International Edition,2023,62(33).
APA	K. Wu, E. Wang, J. Yuan, J. Zuo, D. Zhou, H. Zhao, Y. Luo, L. Zhang, B. Li, J. Zhang, L. Tu and H. Zhang.(2023).Cross Relaxation Channel Tailored Temperature Response in Er3+-rich Upconversion Nanophosphor.Angewandte Chemie - International Edition,62(33).
MLA	K. Wu, E. Wang, J. Yuan, J. Zuo, D. Zhou, H. Zhao, Y. Luo, L. Zhang, B. Li, J. Zhang, L. Tu and H. Zhang."Cross Relaxation Channel Tailored Temperature Response in Er3+-rich Upconversion Nanophosphor".Angewandte Chemie - International Edition 62.33(2023).

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