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. 2024 May 8;15:3846. doi: 10.1038/s41467-024-47674-x

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© The Author(s) 2024

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 1 — a The introduction of Ln³⁺ (Eu³⁺ and Tb³⁺) into PVA-terpyridine phenylboronic acids (TPYBOH@PVA) for finely manipulating RTP properties via the ligand-to-metal photosensitized energy transfer process, the resulting Ln³⁺-manipulated materials showing muticolor fluorescence and mutual blue phosphorescence. Ex.= excitation, Fluo. = fluorescence, Phos. = phosphorescence, Lumin. = luminescence. b The proof-of-concept demonstrations of the advanced multi-level encryption and anti-counterfeiting based on Ln³⁺-manipulated RTP materials, revealing greatly enhanced security level.