Helically Assembled Rare Earth Fluoride Nanoparticles with Multicolor Circularly Polarized Luminescence for High‐Security Anti‐Counterfeiting
ABSTRACT Multicolor circularly polarized luminescence (CPL) materials show considerable potential in the field of advanced anti‐counterfeiting. However, it remains challenging to achieve stable inorganic materials with multicolor CPL. In this work, for the first time, chiroptical rare earth (RE) flu...
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Wiley
2025-07-01
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| Online Access: | https://doi.org/10.1002/agt2.70042 |
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| author | Wen Yuan Shan Lu Xingjun Li Zhuo Li Xiaobo Gu Xingyang Liu Zhixiao Ren Fei Wang Xueyuan Chen |
| author_facet | Wen Yuan Shan Lu Xingjun Li Zhuo Li Xiaobo Gu Xingyang Liu Zhixiao Ren Fei Wang Xueyuan Chen |
| author_sort | Wen Yuan |
| collection | DOAJ |
| description | ABSTRACT Multicolor circularly polarized luminescence (CPL) materials show considerable potential in the field of advanced anti‐counterfeiting. However, it remains challenging to achieve stable inorganic materials with multicolor CPL. In this work, for the first time, chiroptical rare earth (RE) fluoride nanoparticles induced by helical silica are obtained through a facile in situ assembly strategy. The influence of assembly ratio and morphological structure on the luminescence dissymmetry factor (glum) has been systematically investigated, leading to an optimized glum value of 4.7 × 10−3. By adjusting the types and concentrations of RE dopants (Ce3+, Tb3+, Eu3+), the nanocomposites exhibit multicolor CPL and time‐resolved photoluminescence characteristics. Remarkably, these nanocomposites retain their CPL activity even after calcination at 400°C. Leveraging the visible multicolor emissions, along with the hidden dynamic and chiroptical signals, the nanocomposites are successfully applied in high‐security anti‐counterfeiting patterns and multilevel optical encryption codes. |
| format | Article |
| id | doaj-art-8139ea46e7c3473c99bc91a66ef0b073 |
| institution | DOAJ |
| issn | 2692-4560 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Wiley |
| record_format | Article |
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| spelling | doaj-art-8139ea46e7c3473c99bc91a66ef0b0732025-08-20T03:13:27ZengWileyAggregate2692-45602025-07-0167n/an/a10.1002/agt2.70042Helically Assembled Rare Earth Fluoride Nanoparticles with Multicolor Circularly Polarized Luminescence for High‐Security Anti‐CounterfeitingWen Yuan0Shan Lu1Xingjun Li2Zhuo Li3Xiaobo Gu4Xingyang Liu5Zhixiao Ren6Fei Wang7Xueyuan Chen8State Key Laboratory of Structural Chemistry and Fujian Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian ChinaState Key Laboratory of Structural Chemistry and Fujian Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian ChinaState Key Laboratory of Structural Chemistry and Fujian Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian ChinaState Key Laboratory of Structural Chemistry and Fujian Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian ChinaState Key Laboratory of Structural Chemistry and Fujian Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian ChinaState Key Laboratory of Structural Chemistry and Fujian Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian ChinaState Key Laboratory of Structural Chemistry and Fujian Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian ChinaState Key Laboratory of Structural Chemistry and Fujian Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian ChinaState Key Laboratory of Structural Chemistry and Fujian Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian ChinaABSTRACT Multicolor circularly polarized luminescence (CPL) materials show considerable potential in the field of advanced anti‐counterfeiting. However, it remains challenging to achieve stable inorganic materials with multicolor CPL. In this work, for the first time, chiroptical rare earth (RE) fluoride nanoparticles induced by helical silica are obtained through a facile in situ assembly strategy. The influence of assembly ratio and morphological structure on the luminescence dissymmetry factor (glum) has been systematically investigated, leading to an optimized glum value of 4.7 × 10−3. By adjusting the types and concentrations of RE dopants (Ce3+, Tb3+, Eu3+), the nanocomposites exhibit multicolor CPL and time‐resolved photoluminescence characteristics. Remarkably, these nanocomposites retain their CPL activity even after calcination at 400°C. Leveraging the visible multicolor emissions, along with the hidden dynamic and chiroptical signals, the nanocomposites are successfully applied in high‐security anti‐counterfeiting patterns and multilevel optical encryption codes.https://doi.org/10.1002/agt2.70042anti‐counterfeitingchiral assemblycircularly polarized luminescencehelical silicarare earth fluoridetime‐resolved photoluminescence |
| spellingShingle | Wen Yuan Shan Lu Xingjun Li Zhuo Li Xiaobo Gu Xingyang Liu Zhixiao Ren Fei Wang Xueyuan Chen Helically Assembled Rare Earth Fluoride Nanoparticles with Multicolor Circularly Polarized Luminescence for High‐Security Anti‐Counterfeiting Aggregate anti‐counterfeiting chiral assembly circularly polarized luminescence helical silica rare earth fluoride time‐resolved photoluminescence |
| title | Helically Assembled Rare Earth Fluoride Nanoparticles with Multicolor Circularly Polarized Luminescence for High‐Security Anti‐Counterfeiting |
| title_full | Helically Assembled Rare Earth Fluoride Nanoparticles with Multicolor Circularly Polarized Luminescence for High‐Security Anti‐Counterfeiting |
| title_fullStr | Helically Assembled Rare Earth Fluoride Nanoparticles with Multicolor Circularly Polarized Luminescence for High‐Security Anti‐Counterfeiting |
| title_full_unstemmed | Helically Assembled Rare Earth Fluoride Nanoparticles with Multicolor Circularly Polarized Luminescence for High‐Security Anti‐Counterfeiting |
| title_short | Helically Assembled Rare Earth Fluoride Nanoparticles with Multicolor Circularly Polarized Luminescence for High‐Security Anti‐Counterfeiting |
| title_sort | helically assembled rare earth fluoride nanoparticles with multicolor circularly polarized luminescence for high security anti counterfeiting |
| topic | anti‐counterfeiting chiral assembly circularly polarized luminescence helical silica rare earth fluoride time‐resolved photoluminescence |
| url | https://doi.org/10.1002/agt2.70042 |
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