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Synergistic Effects of Lead Thiocyanate Additive and Solvent Annealing on the Performance of Wide-Bandgap Perovskite Solar Cells
Open accessAbstract
We show that the cooperation of lead thiocyanate additive and a solvent annealing process can effectively increase the grain size of mixed-cation lead mixed-halide perovskite thin films while avoiding excess lead iodide formation. As a result, the average grain size of the wide-bandgap mixed-cation lead perovskite thin films increases from 66 ± 24 to 1036 ± 111 nm, and the mean carrier lifetime shows a more than 3-fold increase, from 330 ns to over 1000 ns. Consequently, the average open-circuit voltage of wide-bandgap perovskite solar cells increases by 80 (70) mV, and the average power conversion efficiency (PCE) increases from 13.44 ± 0.48 (11.75 ± 0.34) to 17.68 ± 0.36 (15.58 ± 0.55)% when measured under reverse (forward) voltage scans. The best-performing wide-bandgap perovskite solar cell, with a bandgap of 1.75 eV, achieves a stabilized PCE of 17.18%.
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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
Perovskite precursor solution chemistry: from fundamentals to photovoltaic applications
Jung, M., Ji, S.-G., Kim, G., & Seok, S. I. (2019) · Chemical Society Reviews · doi:10.1039/c8cs00656c · Cited by 816
Causes and Solutions of Recombination in Perovskite Solar Cells
Chen, J., & Park, N. (2019) · Advanced Materials · doi:10.1002/adma.201803019 · Cited by 733
Synthetic Approaches for Halide Perovskite Thin Films
Dunlap-Shohl, W. A., Zhou, Y., Padture, N. P., & Mitzi, D. B. (2019) · Chemical Reviews · doi:10.1021/acs.chemrev.8b00318 · Cited by 631
Gharibzadeh, S., Abdollahi Nejand, B., Jakoby, M., Abzieher, T., Hauschild, D., Moghadamzadeh, S., Schwenzer, J. A., Brenner, P., Schmager, R., Haghighirad, A. A., et al. (2019) · Advanced Energy Materials · doi:10.1002/aenm.201803699 · Cited by 435
Rajagopal, A., Yao, K., & Jen, A. K. ‐. (2018) · Advanced Materials · doi:10.1002/adma.201800455 · Cited by 429
Metadata
- Authors
- Yu, Y., Wang, C., Grice, C. R., Shrestha, N., Zhao, D., Liao, W., Guan, L., Awni, R. A., Meng, W., Cimaroli, A. J., Zhu, K., Ellingson, R. J., & Yan, Y.
- Venue
- ACS Energy Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2017-05-01
- Volume
- 2
- Issue
- 5
- Pages
- 1177-1182
- ISSN
- 2380-8195 (ISSN-L)
- OpenAlex
- W2609902999
- Cited by
- 245
- References
- 1
- FWCI
- 9.51
- Type
- journal article
- Language
- en
- Open access
- green
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- Yu, Y., Wang, C., Grice, C. R., Shrestha, N., Zhao, D., Liao, W., Guan, L., Awni, R. A., Meng, W., Cimaroli, A. J., Zhu, K., Ellingson, R. J., & Yan, Y. (2017). Synergistic Effects of Lead Thiocyanate Additive and Solvent Annealing on the Performance of Wide-Bandgap Perovskite Solar Cells. ACS Energy Letters. https://doi.org/10.1021/acsenergylett.7b00278
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