Direct photo-patterning of halide perovskites toward machine-learning-assisted erasable photonic cryptography
Abstract The patterning of perovskites is significant for optical encryption, display, and optoelectronic integrated devices. However, stringent and complex fabrication processes restrict its development and applications. Here, we propose a conceptual methodology to realize erasable patterns based o...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-04-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-58677-7 |
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| author | Yingjie Zhao Mengru Zhang Zhaokai Wang Haoran Li Yi Hao Yu Chen Lei Jiang Yuchen Wu Shuang-Quan Zang Yanlin Song |
| author_facet | Yingjie Zhao Mengru Zhang Zhaokai Wang Haoran Li Yi Hao Yu Chen Lei Jiang Yuchen Wu Shuang-Quan Zang Yanlin Song |
| author_sort | Yingjie Zhao |
| collection | DOAJ |
| description | Abstract The patterning of perovskites is significant for optical encryption, display, and optoelectronic integrated devices. However, stringent and complex fabrication processes restrict its development and applications. Here, we propose a conceptual methodology to realize erasable patterns based on binary mix-halide perovskite films via a direct photo-patterning technique. Controllable ion migration and photochemical degradation mechanism of iodine-rich regions ensure high-fidelity photoluminescence images with different patterns, sizes, and fast self-erasure time within 5 seconds, yielding erasable photonic cryptography chip, which guarantees the efficient transmission of confidential information and avoids the secondary leakage of information. The ultrafast information encryption, decryption, and erasable processes are attributed to the modulation of the crystallographic orientation of the perovskite film, which lowers the ion migration activation energy and accelerates the ion migration rate. Neural network-assisted multi-level pattern encoding technology with high accuracy and efficiency further enriches the content of the transmitted information and increases the security of the information. This pioneering work provides a strategy and opportunity for the integration of erasable photonic patterning devices based on perovskite materials. |
| format | Article |
| id | doaj-art-d093f50558d543f881fa20c3e25ed9eb |
| institution | OA Journals |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-d093f50558d543f881fa20c3e25ed9eb2025-08-20T02:17:01ZengNature PortfolioNature Communications2041-17232025-04-0116111110.1038/s41467-025-58677-7Direct photo-patterning of halide perovskites toward machine-learning-assisted erasable photonic cryptographyYingjie Zhao0Mengru Zhang1Zhaokai Wang2Haoran Li3Yi Hao4Yu Chen5Lei Jiang6Yuchen Wu7Shuang-Quan Zang8Yanlin Song9College of Chemistry and Pingyuan Laboratory, Zhengzhou UniversityCollege of Chemistry and Pingyuan Laboratory, Zhengzhou UniversityCollege of Chemistry and Pingyuan Laboratory, Zhengzhou UniversityCollege of Chemistry and Pingyuan Laboratory, Zhengzhou UniversityCollege of Chemistry and Pingyuan Laboratory, Zhengzhou UniversityThe Institute of High Energy Physics, Chinese Academy of SciencesKey Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of SciencesKey Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of SciencesCollege of Chemistry and Pingyuan Laboratory, Zhengzhou UniversityCollege of Chemistry and Pingyuan Laboratory, Zhengzhou UniversityAbstract The patterning of perovskites is significant for optical encryption, display, and optoelectronic integrated devices. However, stringent and complex fabrication processes restrict its development and applications. Here, we propose a conceptual methodology to realize erasable patterns based on binary mix-halide perovskite films via a direct photo-patterning technique. Controllable ion migration and photochemical degradation mechanism of iodine-rich regions ensure high-fidelity photoluminescence images with different patterns, sizes, and fast self-erasure time within 5 seconds, yielding erasable photonic cryptography chip, which guarantees the efficient transmission of confidential information and avoids the secondary leakage of information. The ultrafast information encryption, decryption, and erasable processes are attributed to the modulation of the crystallographic orientation of the perovskite film, which lowers the ion migration activation energy and accelerates the ion migration rate. Neural network-assisted multi-level pattern encoding technology with high accuracy and efficiency further enriches the content of the transmitted information and increases the security of the information. This pioneering work provides a strategy and opportunity for the integration of erasable photonic patterning devices based on perovskite materials.https://doi.org/10.1038/s41467-025-58677-7 |
| spellingShingle | Yingjie Zhao Mengru Zhang Zhaokai Wang Haoran Li Yi Hao Yu Chen Lei Jiang Yuchen Wu Shuang-Quan Zang Yanlin Song Direct photo-patterning of halide perovskites toward machine-learning-assisted erasable photonic cryptography Nature Communications |
| title | Direct photo-patterning of halide perovskites toward machine-learning-assisted erasable photonic cryptography |
| title_full | Direct photo-patterning of halide perovskites toward machine-learning-assisted erasable photonic cryptography |
| title_fullStr | Direct photo-patterning of halide perovskites toward machine-learning-assisted erasable photonic cryptography |
| title_full_unstemmed | Direct photo-patterning of halide perovskites toward machine-learning-assisted erasable photonic cryptography |
| title_short | Direct photo-patterning of halide perovskites toward machine-learning-assisted erasable photonic cryptography |
| title_sort | direct photo patterning of halide perovskites toward machine learning assisted erasable photonic cryptography |
| url | https://doi.org/10.1038/s41467-025-58677-7 |
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