Na-alloy tailored 3D/0D metal halide heterostructures enabling efficient charge transfer for color-integrated white scintillators
Abstract Lead-free halide perovskites featuring broad emissions have attracted increasing interest as X-ray imaging scintillators. Currently, the radioluminescence spectrum is primarily tuned by dopants and crystal fields, thus exploring a heterostructure manner to extensively modulate emission inte...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-07-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-62195-x |
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| author | Zhi Yang Jiangtao Cui Ying Sun Jisong Yao Shuang Yang Jizhong Song |
| author_facet | Zhi Yang Jiangtao Cui Ying Sun Jisong Yao Shuang Yang Jizhong Song |
| author_sort | Zhi Yang |
| collection | DOAJ |
| description | Abstract Lead-free halide perovskites featuring broad emissions have attracted increasing interest as X-ray imaging scintillators. Currently, the radioluminescence spectrum is primarily tuned by dopants and crystal fields, thus exploring a heterostructure manner to extensively modulate emission intensity and linewidth presents an exciting opportunity. Herein, we synthesize 3D/0D Cs2NaLuCl6/Cs3LuCl6(Sb) heterostructures via a Na-alloying strategy to tailor the spectral feature of scintillators. We find that type I heterostructure can promote the emission of 0D Cs3LuCl6(Sb) through charge transfer mechanism, as corroborated by the combination of energy band alignment, ultrafast transient dynamics, microscopic photoluminescence and electrical conductivity. As a result, 3D/0D scintillator exhibits a 1.8-times higher radioluminescence intensity than 0D scintillator. Meanwhile, featuring a spectrum-flat white emission, 3D/0D scintillator provides a balanced RGB output enabling to extend the dynamic range in color-integrated X-ray imaging. These findings provide insights into constructing metal halide heterostructures with efficient charge transfer, and advance the design and application of lead-free perovskites and their derivatives. |
| format | Article |
| id | doaj-art-088e37d185214bf698861c3e525c5482 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-088e37d185214bf698861c3e525c54822025-08-20T03:46:25ZengNature PortfolioNature Communications2041-17232025-07-0116111010.1038/s41467-025-62195-xNa-alloy tailored 3D/0D metal halide heterostructures enabling efficient charge transfer for color-integrated white scintillatorsZhi Yang0Jiangtao Cui1Ying Sun2Jisong Yao3Shuang Yang4Jizhong Song5Key Laboratory of Materials Physics of Ministry of Education, Laboratory of Zhongyuan Light, School of Physics, Zhengzhou UniversityKey Laboratory of Materials Physics of Ministry of Education, Laboratory of Zhongyuan Light, School of Physics, Zhengzhou UniversityKey Laboratory of Materials Physics of Ministry of Education, Laboratory of Zhongyuan Light, School of Physics, Zhengzhou UniversityKey Laboratory of Materials Physics of Ministry of Education, Laboratory of Zhongyuan Light, School of Physics, Zhengzhou UniversityKey Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and TechnologyKey Laboratory of Materials Physics of Ministry of Education, Laboratory of Zhongyuan Light, School of Physics, Zhengzhou UniversityAbstract Lead-free halide perovskites featuring broad emissions have attracted increasing interest as X-ray imaging scintillators. Currently, the radioluminescence spectrum is primarily tuned by dopants and crystal fields, thus exploring a heterostructure manner to extensively modulate emission intensity and linewidth presents an exciting opportunity. Herein, we synthesize 3D/0D Cs2NaLuCl6/Cs3LuCl6(Sb) heterostructures via a Na-alloying strategy to tailor the spectral feature of scintillators. We find that type I heterostructure can promote the emission of 0D Cs3LuCl6(Sb) through charge transfer mechanism, as corroborated by the combination of energy band alignment, ultrafast transient dynamics, microscopic photoluminescence and electrical conductivity. As a result, 3D/0D scintillator exhibits a 1.8-times higher radioluminescence intensity than 0D scintillator. Meanwhile, featuring a spectrum-flat white emission, 3D/0D scintillator provides a balanced RGB output enabling to extend the dynamic range in color-integrated X-ray imaging. These findings provide insights into constructing metal halide heterostructures with efficient charge transfer, and advance the design and application of lead-free perovskites and their derivatives.https://doi.org/10.1038/s41467-025-62195-x |
| spellingShingle | Zhi Yang Jiangtao Cui Ying Sun Jisong Yao Shuang Yang Jizhong Song Na-alloy tailored 3D/0D metal halide heterostructures enabling efficient charge transfer for color-integrated white scintillators Nature Communications |
| title | Na-alloy tailored 3D/0D metal halide heterostructures enabling efficient charge transfer for color-integrated white scintillators |
| title_full | Na-alloy tailored 3D/0D metal halide heterostructures enabling efficient charge transfer for color-integrated white scintillators |
| title_fullStr | Na-alloy tailored 3D/0D metal halide heterostructures enabling efficient charge transfer for color-integrated white scintillators |
| title_full_unstemmed | Na-alloy tailored 3D/0D metal halide heterostructures enabling efficient charge transfer for color-integrated white scintillators |
| title_short | Na-alloy tailored 3D/0D metal halide heterostructures enabling efficient charge transfer for color-integrated white scintillators |
| title_sort | na alloy tailored 3d 0d metal halide heterostructures enabling efficient charge transfer for color integrated white scintillators |
| url | https://doi.org/10.1038/s41467-025-62195-x |
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