Sensitive and Fast X‐Ray Scintillation with Perovskite‐Inspired Cerium Halide Nanocrystals
Abstract Real‐time, high‐precision X‐ray imaging is of critical importance in a wide range of applications, from medical diagnostics to security screening. While lanthanide luminescent materials are among the most commonly used scintillators, achieving a combination of large‐area scalability, rapid response, and optimal performance remains challenging. Herein, a perovskite‐inspired cerium halide nanocrystal scintillator is presented with a remarkable photoluminescence quantum yield approaching unity and a fast radiative recombination rate of ≈29 ns. By leveraging these promising characteristics, large‐area X‐ray imaging is demonstrated with a spatial resolution of 12.21 lp mm −1 and an ultra‐low detection limit of 11.2 nGy s −1 , alongside applications in dynamic imaging. Based on these paternal nanocrystals, the versatile spectral tunability through halide alloying and cation doping is further explored, offering a promising platform for future chemical and structural design toward advanced scintillations and other down‐conversion applications.
Authors
- Wenbo Hu (ORCID: https://orcid.org/0000-0001-6776-9891)
- Xinqi Xu (ORCID: https://orcid.org/0000-0003-2607-5230)
- Qiushui Chen (ORCID: https://orcid.org/0000-0002-3039-2098)
- Denglin Zhao
- Zhongbin Wu (ORCID: https://orcid.org/0000-0002-8425-5013)
- Weidong Xu (ORCID: https://orcid.org/0000-0002-0767-3086)
- Bo Peng (ORCID: https://orcid.org/0000-0002-5034-742X)
- Yatao Zou (ORCID: https://orcid.org/0000-0002-7659-0989)
- Nicolas Hans Voelcker (ORCID: https://orcid.org/0000-0002-1536-7804)
- Zengguang Zhang (ORCID: https://orcid.org/0000-0003-1340-7005)
- Yanze Wang (ORCID: https://orcid.org/0000-0001-6379-9380)
- Gaoyu Chen (ORCID: https://orcid.org/0000-0002-0978-9533)
- Meng Su (ORCID: https://orcid.org/0000-0001-8485-2590)
- Chaohui Zhao (ORCID: https://orcid.org/0000-0001-6474-5843)
- Juntao Lu
- Min Rao (ORCID: https://orcid.org/0000-0001-5090-3636)
- Ziwei Li
- Huifang Yang
- Xiaowang Liu (ORCID: https://orcid.org/0009-0002-8133-6480)
Institutions
- Hunan University (CN)
- Northwestern Polytechnical University (CN)
- Henan University (CN)
- Chinese Academy of Sciences (CN)
- Beijing National Laboratory for Molecular Sciences (CN)
- Monash University (AU)
- Fuzhou University (CN)
Publication Details
- Journal
- Advanced Functional Materials
- Published
- 2025-02-16
- DOI
- https://doi.org/10.1002/adfm.202422959
- Citations
- 9
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 6.57
Funders
- National Natural Science Foundation of China
- China Postdoctoral Science Foundation
- Natural Science Foundation of Ningbo
- Key Research and Development Projects of Shaanxi Province