The DOI matches its Crossref record; 39 of the 39 references it cites were found in a registry or an index.
Heteroepitaxial passivation of Cs2AgBiBr6 wafers with suppressed ionic migration for X-ray imaging
Open accessAbstract
X-ray detectors are broadly utilized in medical imaging and product inspection. Halide perovskites recently demonstrate excellent performance for direct X-ray detection. However, ionic migration causes large noise and baseline drift, limiting the detection and imaging performance. Here we largely eliminate the ionic migration in cesium silver bismuth bromide (Cs 2 AgBiBr 6) polycrystalline wafers by introducing bismuth oxybromide (BiOBr) as heteroepitaxial passivation layers. Good lattice match between BiOBr and Cs 2 AgBiBr 6 enables complete defect passivation and suppressed ionic migration. The detector hence achieves outstanding balanced performance with a signal drifting one order of magnitude lower than all previous studies, low noise (1/f noise free), a high sensitivity of 250 µC Gy air−1 cm–2, and a spatial resolution of 4.9 lp mm−1. The wafer area could be easily scaled up by the isostatic-pressing method, together with the heteroepitaxial passivation, strengthens the competitiveness of Cs 2 AgBiBr 6-based X-ray detectors as next-generation X-ray imaging flat panels.
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Cited by
Perovskite Solar Cells for Space Applications: Progress and Challenges
Tu, Y., Wu, J., Xu, G., Yang, X., Cai, R., Gong, Q., Zhu, R., & Huang, W. (2021) · Advanced Materials · doi:10.1002/adma.202006545 · Cited by 404
Self-citationHalide Perovskite, a Potential Scintillator for X‐Ray Detection
Zhou, F., Li, Z., Lan, W., Wang, Q., Ding, L., & Jin, Z. (2020) · Small Methods · doi:10.1002/smtd.202000506 · Cited by 292
Zhao, X., Li, Z., Wang, S., Song, Y., Hong, E., Yan, T., Meng, G., & Fang, X. (2025) · Advanced Functional Materials · doi:10.1002/adfm.202500039 · Cited by 18
Metadata
- Authors
- Yang, B., Pan, W., Wu, H., Niu, G., Yuan, J.-H., Xue, K.-H., Yin, L., Du, X., Miao, X.-S., Yang, X., Xie, Q., & Tang, J.
- Venue
- Nature Communications
- Published
- 2019-04-30
- Volume
- 10
- Issue
- 1
- Pages
- 1989-1989
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2943521861
- Cited by
- 429
- References
- 39
- FWCI
- 35.61
- Type
- journal article
- Language
- en
- Open access
- gold
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- Yang, B., Pan, W., Wu, H., Niu, G., Yuan, J.-H., Xue, K.-H., Yin, L., Du, X., Miao, X.-S., Yang, X., Xie, Q., & Tang, J. (2019). Heteroepitaxial passivation of Cs2AgBiBr6 wafers with suppressed ionic migration for X-ray imaging. Nature Communications. https://doi.org/10.1038/s41467-019-09968-3
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