Synergistic effects of lead thiocyanate additive and solvent annealing on the performance of wide-bandgap perovskite solar cells
Abstract
Here, 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%.
- Authors:
-
[2];
[1]
- Univ. of Toledo, Toledo, OH (United States)
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Publication Date:
- Research Org.:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
- OSTI Identifier:
- 1357886
- Report Number(s):
- NREL/JA-5900-68289
Journal ID: ISSN 2380-8195
- Grant/Contract Number:
- AC36-08GO28308
- Resource Type:
- Accepted Manuscript
- Journal Name:
- ACS Energy Letters
- Additional Journal Information:
- Journal Volume: 2; Journal Issue: 5; Journal ID: ISSN 2380-8195
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 14 SOLAR ENERGY; perovskite solar cells; lead thiocyanate additive; annealing; thin films
Citation Formats
Yu, Yue, Wang, Changlei, Grice, Corey R., Shrestha, Niraj, Zhao, Dewei, Liao, Weiqiang, Guan, Lei, Awni, Rasha A., Meng, Weiwei, Cimaroli, Alexander J., Zhu, Kai, Ellingson, Randy J., and Yan, Yanfa. Synergistic effects of lead thiocyanate additive and solvent annealing on the performance of wide-bandgap perovskite solar cells. United States: N. p., 2017.
Web. doi:10.1021/acsenergylett.7b00278.
Yu, Yue, Wang, Changlei, Grice, Corey R., Shrestha, Niraj, Zhao, Dewei, Liao, Weiqiang, Guan, Lei, Awni, Rasha A., Meng, Weiwei, Cimaroli, Alexander J., Zhu, Kai, Ellingson, Randy J., & Yan, Yanfa. Synergistic effects of lead thiocyanate additive and solvent annealing on the performance of wide-bandgap perovskite solar cells. United States. https://doi.org/10.1021/acsenergylett.7b00278
Yu, Yue, Wang, Changlei, Grice, Corey R., Shrestha, Niraj, Zhao, Dewei, Liao, Weiqiang, Guan, Lei, Awni, Rasha A., Meng, Weiwei, Cimaroli, Alexander J., Zhu, Kai, Ellingson, Randy J., and Yan, Yanfa. Wed .
"Synergistic effects of lead thiocyanate additive and solvent annealing on the performance of wide-bandgap perovskite solar cells". United States. https://doi.org/10.1021/acsenergylett.7b00278. https://www.osti.gov/servlets/purl/1357886.
@article{osti_1357886,
title = {Synergistic effects of lead thiocyanate additive and solvent annealing on the performance of wide-bandgap perovskite solar cells},
author = {Yu, Yue and Wang, Changlei and Grice, Corey R. and Shrestha, Niraj and Zhao, Dewei and Liao, Weiqiang and Guan, Lei and Awni, Rasha A. and Meng, Weiwei and Cimaroli, Alexander J. and Zhu, Kai and Ellingson, Randy J. and Yan, Yanfa},
abstractNote = {Here, 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%.},
doi = {10.1021/acsenergylett.7b00278},
journal = {ACS Energy Letters},
number = 5,
volume = 2,
place = {United States},
year = {Wed Apr 26 00:00:00 EDT 2017},
month = {Wed Apr 26 00:00:00 EDT 2017}
}
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