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Perovskite Solar Cells with Near 100% Internal Quantum Efficiency Based on Large Single Crystalline Grains and Vertical Bulk Heterojunctions
Open accessAbstract
Imperfections in organometal halide perovskite films such as grain boundaries (GBs), defects, and traps detrimentally cause significant nonradiative recombination energy loss and decreased power conversion efficiency (PCE) in solar cells. Here, a simple layer-by-layer fabrication process based on air exposure followed by thermal annealing is reported to grow perovskite films with large, single-crystal grains and vertically oriented GBs. The hole-transport medium Spiro-OMeTAD is then infiltrated into the GBs to form vertically aligned bulk heterojunctions. Due to the space-charge regions in the vicinity of GBs, the nonradiative recombination in GBs is significantly suppressed. The GBs become active carrier collection channels. Thus, the internal quantum efficiencies of the devices approach 100% in the visible spectrum range. The optimized cells yield an average PCE of 16.3 ± 0.9%, comparable to the best solution-processed perovskite devices, establishing them as important alternatives to growing ideal single crystal thin films in the pursuit toward theoretical maximum PCE with industrially realistic processing techniques.
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Kim, H.-S., Lee, C.-R., Im, J.-H., Lee, K.-B., Moehl, T., Marchioro, A., Moon, S.-J., Humphry-Baker, R., Yum, J.-H., Moser, J. E., et al. (2012) · Scientific Reports · doi:10.1038/srep00591 · Cited by 8,092
Solvent engineering for high-performance inorganic–organic hybrid perovskite solar cells
Jeon, N. J., Noh, J. H., Kim, Y. C., Yang, W. S., Ryu, S., & Seok, S. I. (2014) · Nature Materials · doi:10.1038/nmat4014 · Cited by 6,723
Cited by
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
Monolithic perovskite/silicon-heterojunction tandem solar cells processed at low temperature
Albrecht, S., Saliba, M., Correa Baena, J. P., Lang, F., Kegelmann, L., Mews, M., Steier, L., Abate, A., Rappich, J., Korte, L., et al. (2016) · Energy & Environmental Science · doi:10.1039/c5ee02965a · Cited by 649
Lin, Y., Shen, L., Dai, J., Deng, Y., Wu, Y., Bai, Y., Zheng, X., Wang, J., Fang, Y., Wei, H., et al. (2017) · Advanced Materials · doi:10.1002/adma.201604545 · Cited by 640
Bulk heterojunction perovskite–PCBM solar cells with high fill factor
Chiang, C.-H., & Wu, C.-G. (2016) · Nature Photonics · doi:10.1038/nphoton.2016.3 · Cited by 624
Huang, C., Fu, W., Li, C.-Z., Zhang, Z., Qiu, W., Shi, M., Heremans, P., Jen, A. K.-Y., & Chen, H. (2016) · Journal of the American Chemical Society · doi:10.1021/jacs.6b00039 · Cited by 489
Metadata
- Authors
- Yang, B., Dyck, O., Poplawsky, J., Keum, J., Puretzky, A., Das, S., Ivanov, I., Rouleau, C., Duscher, G., Geohegan, D., & Xiao, K.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2015-07-16
- Volume
- 137
- Issue
- 29
- Pages
- 9210-9213
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2280471489
- Cited by
- 277
- References
- 2
- FWCI
- 23.58
- Type
- journal article
- Language
- en
- Open access
- green
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- Yang, B., Dyck, O., Poplawsky, J., Keum, J., Puretzky, A., Das, S., Ivanov, I., Rouleau, C., Duscher, G., Geohegan, D., & Xiao, K. (2015). Perovskite Solar Cells with Near 100% Internal Quantum Efficiency Based on Large Single Crystalline Grains and Vertical Bulk Heterojunctions. Journal of the American Chemical Society. https://doi.org/10.1021/jacs.5b03144
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