The DOI matches its Crossref record; 52 of the 52 references it cites were found in a registry or an index.
Ultrasensitive and Fast All‐Inorganic Perovskite‐Based Photodetector via Fast Carrier Diffusion
Abstract
Low trap‐state density, high carrier mobility, and efficient charge carrier collection are key parameters for photodetectors with high sensitivity and fast response time. This study demonstrates a simple solution growth method to prepare CsPbBr 3 microcrystals (MCs) with low trap‐state density. Time‐dependent photoluminescence study with one‐photon excitation (OPE) and two‐photon excitation (TPE) indicates that CsPbBr 3 MCs exhibit fast carrier diffusion with carrier mobility over 100 cm 2 V−1 S−1. Furthermore, CsPbBr 3 MC‐based photodetectors with high charge carriers' collection efficiency are fabricated. Such photodetectors show ultrahigh responsivity (R) up to 6 × 10 4 A W−1 with OPE and high R up to 6 A W−1 with TPE. The R for OPE is over one order of magnitude higher (the R for TPE is three orders of magnitude higher) than that of previously reported all‐inorganic perovskite‐based photodetectors. Moreover, the photodetectors exhibit fast response time of ≈1 ms, which corresponds to a gain ≈10 5 and a gain‐ bandwidth product of 10 8 Hz for OPE (a gain ≈10 3 and a gain‐bandwidth product of 10 6 Hz for TPE).
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Cites
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Cited by
Low‐Dimensional Metal Halide Perovskite Photodetectors
Wang, H., Li, S., Liu, X., Shi, Z., Fang, X., & He, J. (2021) · Advanced Materials · doi:10.1002/adma.202003309 · Cited by 574
Lin, D., Liu, J., Haroldson, R., Moon, J., Li, Z., Zakhidov, A., Hu, W., & Gu, Q. (2022) · Advanced Optical Materials · doi:10.1002/adom.202201516 · Cited by 21
Self-powered photodetector based on a CsPbBr 3 /n-Si Schottky junction
Hua, F., Du, X., Huang, Z., Gu, Y., Wen, J., Liu, F., Chen, J., & Tang, T. (2024) · Journal of the Optical Society of America B · doi:10.1364/josab.503296 · Cited by 9
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Metadata
- Authors
- Yang, B., Zhang, F., Chen, J., Yang, S., Xia, X., Pullerits, T., Deng, W., & Han, K.
- Venue
- Advanced Materials
- Publisher
- Wiley
- Published
- 2017-09
- Volume
- 29
- Issue
- 40
- ISSN
- 0935-9648 (ISSN-L)
- 1521-4095
- OpenAlex
- W2753102807
- Cited by
- 319
- References
- 52
- FWCI
- 15.77
- Type
- journal article
- Language
- en
- Open access
- closed
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