Effect of non-stoichiometric solution chemistry on improving the performance of wide-bandgap perovskite solar cells
Abstract
A high-efficiency wide-bandgap (WBG) perovskite solar cell is critical for developing perovskite-related (e.g., all-perovskite, perovskite/Si, or perovskite/Cu(In,Ga)Se2) tandem devices. Here, we demonstrate the use of non-stoichiometric precursor chemistry with excess methylammonium halides (MAX; X = I, Br, or Cl) for preparing high-quality ~1.75-eV FA0.83Cs0.17Pb(I0.6Br0.4)3 perovskite solar cells. Among various methylammonium halides, using excess MABr in the non-stoichiometric precursor exhibits the strongest effect on improving perovskite crystallographic properties and device characteristics without affecting the perovskite composition. In contrast, using excess MAI significantly reduces the bandgap of perovskite due to the replacement of Br with I. Using 40% excess MABr, we demonstrate a single-junction WBG perovskite solar cell with stabilized efficiency of 16.4%. We further demonstrate a 20.3%-efficient 4-terminal tandem device by using a 14.7%-efficient semi-transparent WBG perovskite top cell and an 18.6%-efficient unfiltered (5.6%-efficient filtered) Si bottom cell.
- Authors:
-
[2];
[2];
[2];
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Univ. of Toledo, OH (United States)
- ENN Energy Research Inst., Langfang (China); ENN Solar Energy Co., Ltd., Langfang (China)
- Publication Date:
- Research Org.:
- National Renewable Energy Lab. (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:
- 1427344
- Alternate Identifier(s):
- OSTI ID: 1549394
- Report Number(s):
- NREL/JA-5900-70019
Journal ID: ISSN 2468-6069; TRN: US1802855
- Grant/Contract Number:
- AC36-08GO28308; FOA-0000990
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Materials Today Energy
- Additional Journal Information:
- Journal Volume: 7; Journal Issue: C; Journal ID: ISSN 2468-6069
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 14 SOLAR ENERGY; 36 MATERIALS SCIENCE; wide bandgap perovskite; tandem solar cell; non-stoichiometric chemistry
Citation Formats
Yang, Mengjin, Kim, Dong Hoe, Yu, Yue, Li, Zhen, Reid, Obadiah G., Song, Zhaoning, Zhao, Dewei, Wang, Changlei, Li, Liwei, Meng, Yuan, Guo, Ted, Yan, Yanfa, and Zhu, Kai. Effect of non-stoichiometric solution chemistry on improving the performance of wide-bandgap perovskite solar cells. United States: N. p., 2017.
Web. doi:10.1016/j.mtener.2017.10.001.
Yang, Mengjin, Kim, Dong Hoe, Yu, Yue, Li, Zhen, Reid, Obadiah G., Song, Zhaoning, Zhao, Dewei, Wang, Changlei, Li, Liwei, Meng, Yuan, Guo, Ted, Yan, Yanfa, & Zhu, Kai. Effect of non-stoichiometric solution chemistry on improving the performance of wide-bandgap perovskite solar cells. United States. https://doi.org/10.1016/j.mtener.2017.10.001
Yang, Mengjin, Kim, Dong Hoe, Yu, Yue, Li, Zhen, Reid, Obadiah G., Song, Zhaoning, Zhao, Dewei, Wang, Changlei, Li, Liwei, Meng, Yuan, Guo, Ted, Yan, Yanfa, and Zhu, Kai. Mon .
"Effect of non-stoichiometric solution chemistry on improving the performance of wide-bandgap perovskite solar cells". United States. https://doi.org/10.1016/j.mtener.2017.10.001. https://www.osti.gov/servlets/purl/1427344.
@article{osti_1427344,
title = {Effect of non-stoichiometric solution chemistry on improving the performance of wide-bandgap perovskite solar cells},
author = {Yang, Mengjin and Kim, Dong Hoe and Yu, Yue and Li, Zhen and Reid, Obadiah G. and Song, Zhaoning and Zhao, Dewei and Wang, Changlei and Li, Liwei and Meng, Yuan and Guo, Ted and Yan, Yanfa and Zhu, Kai},
abstractNote = {A high-efficiency wide-bandgap (WBG) perovskite solar cell is critical for developing perovskite-related (e.g., all-perovskite, perovskite/Si, or perovskite/Cu(In,Ga)Se2) tandem devices. Here, we demonstrate the use of non-stoichiometric precursor chemistry with excess methylammonium halides (MAX; X = I, Br, or Cl) for preparing high-quality ~1.75-eV FA0.83Cs0.17Pb(I0.6Br0.4)3 perovskite solar cells. Among various methylammonium halides, using excess MABr in the non-stoichiometric precursor exhibits the strongest effect on improving perovskite crystallographic properties and device characteristics without affecting the perovskite composition. In contrast, using excess MAI significantly reduces the bandgap of perovskite due to the replacement of Br with I. Using 40% excess MABr, we demonstrate a single-junction WBG perovskite solar cell with stabilized efficiency of 16.4%. We further demonstrate a 20.3%-efficient 4-terminal tandem device by using a 14.7%-efficient semi-transparent WBG perovskite top cell and an 18.6%-efficient unfiltered (5.6%-efficient filtered) Si bottom cell.},
doi = {10.1016/j.mtener.2017.10.001},
journal = {Materials Today Energy},
number = C,
volume = 7,
place = {United States},
year = {Mon Oct 02 00:00:00 EDT 2017},
month = {Mon Oct 02 00:00:00 EDT 2017}
}
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