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Unusual defect physics in CH3NH3PbI3 perovskite solar cell absorber
Abstract
Thin-film solar cells based on Methylammonium triiodideplumbate (CH3NH3PbI3) halide perovskites have recently shown remarkable performance. First-principle calculations show that CH3NH3PbI3 has unusual defect physics: (i) Different from common p-type thin-film solar cell absorbers, it exhibits flexible conductivity from good p-type, intrinsic to good n-type depending on the growth conditions; (ii) Dominant intrinsic defects create only shallow levels, which partially explain the long electron-hole diffusion length and high open-circuit voltage in solar cell. The unusual defect properties can be attributed to the strong Pb lone-pair s orbital and I p orbital antibonding coupling and the high ionicity of CH3NH3PbI3.
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Cited by
Defect migration in methylammonium lead iodide and its role in perovskite solar cell operation
Azpiroz, J. M., Mosconi, E., Bisquert, J., & De Angelis, F. (2015) · Energy & Environmental Science · doi:10.1039/c5ee01265a · Cited by 1,644
Brenner, T. M., Egger, D. A., Kronik, L., Hodes, G., & Cahen, D. (2016) · Nature Reviews Materials · doi:10.1038/natrevmats.2015.7 · Cited by 1,557
Chen, Q., Zhou, H., Song, T.-B., Luo, S., Hong, Z., Duan, H.-S., Dou, L., Liu, Y., & Yang, Y. (2014) · Nano Letters · doi:10.1021/nl501838y · Cited by 1,543
Scalable fabrication and coating methods for perovskite solar cells and solar modules
Park, N.-G., & Zhu, K. (2020) · Nature Reviews Materials · doi:10.1038/s41578-019-0176-2 · Cited by 908
Ahmadi, M., Wu, T., & Hu, B. (2017) · Advanced Materials · doi:10.1002/adma.201605242 · Cited by 820
Metadata
- Authors
- Yin, W.-J., Shi, T., & Yan, Y.
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 2014-02-10
- Volume
- 104
- Issue
- 6
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W2054093403
- Cited by
- 2,707
- References
- 2
- FWCI
- 108.60
- Type
- journal article
- Language
- en
- Open access
- closed
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- Yin, W.-J., Shi, T., & Yan, Y. (2014). Unusual defect physics in CH3NH3PbI3 perovskite solar cell absorber. Applied Physics Letters. https://doi.org/10.1063/1.4864778
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