Multi-level phosphor storage enabled by synergistic up-conversion and photo-stimulated trap manipulation
Abstract Phosphor-based optical storage technologies have made significant strides in encoding and decoding processes, yet persistent challenges in flexible, multi-level storage remain. Here, we present a synergistic strategy that integrates up-conversion charging (UCC) with a photo-stimulated trap...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-07-01
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| Series: | Communications Materials |
| Online Access: | https://doi.org/10.1038/s43246-025-00871-7 |
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| author | Yuning Luan Quan Sun Yi Liu Tingxing Shi Feng Liu Liangliang Zhang Jiahua Zhang Xiao-jun Wang Yichun Liu |
| author_facet | Yuning Luan Quan Sun Yi Liu Tingxing Shi Feng Liu Liangliang Zhang Jiahua Zhang Xiao-jun Wang Yichun Liu |
| author_sort | Yuning Luan |
| collection | DOAJ |
| description | Abstract Phosphor-based optical storage technologies have made significant strides in encoding and decoding processes, yet persistent challenges in flexible, multi-level storage remain. Here, we present a synergistic strategy that integrates up-conversion charging (UCC) with a photo-stimulated trap manipulation (PSTM) technique to address the challenges, demonstrated through the use of co-doped Mg3Y2Ge3O12:Pr3+,Yb3+ storage phosphors. During the data recording phase, we employ a 450-nm laser that rapidly fills both shallow and deep traps via non-linear UCC, allowing for high-definition data recording in just 0.01 s. For retrieval, PSTM uniquely leverages ambient light to redistribute electrons from deep to shallow traps, followed by infrared-stimulated luminescence with a 960-nm flashlight to enhance data access. This UCC-PSTM synergy enables high-security, multi-level information retrieval following multi-channel data encoding, and supports numerous write/read cycles. These outcomes mark a meaningful step forward in the realm of optical storage technologies and pave the way for further developments in the field. |
| format | Article |
| id | doaj-art-8c88ed765c25491ead721ac45a5cc167 |
| institution | Kabale University |
| issn | 2662-4443 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Materials |
| spelling | doaj-art-8c88ed765c25491ead721ac45a5cc1672025-08-20T04:03:02ZengNature PortfolioCommunications Materials2662-44432025-07-01611810.1038/s43246-025-00871-7Multi-level phosphor storage enabled by synergistic up-conversion and photo-stimulated trap manipulationYuning Luan0Quan Sun1Yi Liu2Tingxing Shi3Feng Liu4Liangliang Zhang5Jiahua Zhang6Xiao-jun Wang7Yichun Liu8Key Laboratory for UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal UniversityKey Laboratory for UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal UniversityKey Laboratory for UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal UniversityKey Laboratory for UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal UniversityKey Laboratory for UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal UniversityState Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of SciencesState Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of SciencesDepartment of Physics, Georgia Southern UniversityKey Laboratory for UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal UniversityAbstract Phosphor-based optical storage technologies have made significant strides in encoding and decoding processes, yet persistent challenges in flexible, multi-level storage remain. Here, we present a synergistic strategy that integrates up-conversion charging (UCC) with a photo-stimulated trap manipulation (PSTM) technique to address the challenges, demonstrated through the use of co-doped Mg3Y2Ge3O12:Pr3+,Yb3+ storage phosphors. During the data recording phase, we employ a 450-nm laser that rapidly fills both shallow and deep traps via non-linear UCC, allowing for high-definition data recording in just 0.01 s. For retrieval, PSTM uniquely leverages ambient light to redistribute electrons from deep to shallow traps, followed by infrared-stimulated luminescence with a 960-nm flashlight to enhance data access. This UCC-PSTM synergy enables high-security, multi-level information retrieval following multi-channel data encoding, and supports numerous write/read cycles. These outcomes mark a meaningful step forward in the realm of optical storage technologies and pave the way for further developments in the field.https://doi.org/10.1038/s43246-025-00871-7 |
| spellingShingle | Yuning Luan Quan Sun Yi Liu Tingxing Shi Feng Liu Liangliang Zhang Jiahua Zhang Xiao-jun Wang Yichun Liu Multi-level phosphor storage enabled by synergistic up-conversion and photo-stimulated trap manipulation Communications Materials |
| title | Multi-level phosphor storage enabled by synergistic up-conversion and photo-stimulated trap manipulation |
| title_full | Multi-level phosphor storage enabled by synergistic up-conversion and photo-stimulated trap manipulation |
| title_fullStr | Multi-level phosphor storage enabled by synergistic up-conversion and photo-stimulated trap manipulation |
| title_full_unstemmed | Multi-level phosphor storage enabled by synergistic up-conversion and photo-stimulated trap manipulation |
| title_short | Multi-level phosphor storage enabled by synergistic up-conversion and photo-stimulated trap manipulation |
| title_sort | multi level phosphor storage enabled by synergistic up conversion and photo stimulated trap manipulation |
| url | https://doi.org/10.1038/s43246-025-00871-7 |
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