Carrier lifetimes of >1 μs in Sn-Pb perovskites enable efficient all-perovskite tandem solar cells
Abstract
All-perovskite–based polycrystalline thin-film tandem solar cells have the potential to deliver efficiencies of >30%. However, the performance of all-perovskite–based tandem devices has been limited by the lack of high-efficiency, low–band gap tin-lead (Sn-Pb) mixed-perovskite solar cells (PSCs). We found that the addition of guanidinium thiocyanate (GuaSCN) resulted in marked improvements in the structural and optoelectronic properties of Sn-Pb mixed, low–band gap (~1.25 electron volt) perovskite films. The films have defect densities that are lower by a factor of 10, leading to carrier lifetimes of greater than 1 microsecond and diffusion lengths of 2.5 micrometers. These improved properties enable our demonstration of >20% efficient low–band gap PSCs. When combined with wider–band gap PSCs, we achieve 25% efficient four-terminal and 23.1% efficient two-terminal all-perovskite–based polycrystalline thin-film tandem solar cells.
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- Publication Date:
- Research Org.:
- Energy Frontier Research Centers (EFRC) (United States). Center for Hybrid Organic-Inorganic Semiconductors for Energy (CHOISE); 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; USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1529434
- Alternate Identifier(s):
- OSTI ID: 1510422
- Report Number(s):
- NREL/JA-5900-72619
Journal ID: ISSN 0036-8075; /sci/364/6439/475.atom
- Grant/Contract Number:
- AC36-08GO28308; FOA-0000990
- Resource Type:
- Published Article
- Journal Name:
- Science
- Additional Journal Information:
- Journal Name: Science Journal Volume: 364 Journal Issue: 6439; Journal ID: ISSN 0036-8075
- Publisher:
- American Association for the Advancement of Science (AAAS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 14 SOLAR ENERGY; 36 MATERIALS SCIENCE; perovskite films; carrier lifetimes; optoelectronics
Citation Formats
Tong, Jinhui, Song, Zhaoning, Kim, Dong Hoe, Chen, Xihan, Chen, Cong, Palmstrom, Axel F., Ndione, Paul F., Reese, Matthew O., Dunfield, Sean P., Reid, Obadiah G., Liu, Jun, Zhang, Fei, Harvey, Steven P., Li, Zhen, Christensen, Steven T., Teeter, Glenn, Zhao, Dewei, Al-Jassim, Mowafak M., van Hest, Maikel F. A. M., Beard, Matthew C., Shaheen, Sean E., Berry, Joseph J., Yan, Yanfa, and Zhu, Kai. Carrier lifetimes of >1 μs in Sn-Pb perovskites enable efficient all-perovskite tandem solar cells. United States: N. p., 2019.
Web. doi:10.1126/science.aav7911.
Tong, Jinhui, Song, Zhaoning, Kim, Dong Hoe, Chen, Xihan, Chen, Cong, Palmstrom, Axel F., Ndione, Paul F., Reese, Matthew O., Dunfield, Sean P., Reid, Obadiah G., Liu, Jun, Zhang, Fei, Harvey, Steven P., Li, Zhen, Christensen, Steven T., Teeter, Glenn, Zhao, Dewei, Al-Jassim, Mowafak M., van Hest, Maikel F. A. M., Beard, Matthew C., Shaheen, Sean E., Berry, Joseph J., Yan, Yanfa, & Zhu, Kai. Carrier lifetimes of >1 μs in Sn-Pb perovskites enable efficient all-perovskite tandem solar cells. United States. https://doi.org/10.1126/science.aav7911
Tong, Jinhui, Song, Zhaoning, Kim, Dong Hoe, Chen, Xihan, Chen, Cong, Palmstrom, Axel F., Ndione, Paul F., Reese, Matthew O., Dunfield, Sean P., Reid, Obadiah G., Liu, Jun, Zhang, Fei, Harvey, Steven P., Li, Zhen, Christensen, Steven T., Teeter, Glenn, Zhao, Dewei, Al-Jassim, Mowafak M., van Hest, Maikel F. A. M., Beard, Matthew C., Shaheen, Sean E., Berry, Joseph J., Yan, Yanfa, and Zhu, Kai. Thu .
"Carrier lifetimes of >1 μs in Sn-Pb perovskites enable efficient all-perovskite tandem solar cells". United States. https://doi.org/10.1126/science.aav7911.
@article{osti_1529434,
title = {Carrier lifetimes of >1 μs in Sn-Pb perovskites enable efficient all-perovskite tandem solar cells},
author = {Tong, Jinhui and Song, Zhaoning and Kim, Dong Hoe and Chen, Xihan and Chen, Cong and Palmstrom, Axel F. and Ndione, Paul F. and Reese, Matthew O. and Dunfield, Sean P. and Reid, Obadiah G. and Liu, Jun and Zhang, Fei and Harvey, Steven P. and Li, Zhen and Christensen, Steven T. and Teeter, Glenn and Zhao, Dewei and Al-Jassim, Mowafak M. and van Hest, Maikel F. A. M. and Beard, Matthew C. and Shaheen, Sean E. and Berry, Joseph J. and Yan, Yanfa and Zhu, Kai},
abstractNote = {All-perovskite–based polycrystalline thin-film tandem solar cells have the potential to deliver efficiencies of >30%. However, the performance of all-perovskite–based tandem devices has been limited by the lack of high-efficiency, low–band gap tin-lead (Sn-Pb) mixed-perovskite solar cells (PSCs). We found that the addition of guanidinium thiocyanate (GuaSCN) resulted in marked improvements in the structural and optoelectronic properties of Sn-Pb mixed, low–band gap (~1.25 electron volt) perovskite films. The films have defect densities that are lower by a factor of 10, leading to carrier lifetimes of greater than 1 microsecond and diffusion lengths of 2.5 micrometers. These improved properties enable our demonstration of >20% efficient low–band gap PSCs. When combined with wider–band gap PSCs, we achieve 25% efficient four-terminal and 23.1% efficient two-terminal all-perovskite–based polycrystalline thin-film tandem solar cells.},
doi = {10.1126/science.aav7911},
journal = {Science},
number = 6439,
volume = 364,
place = {United States},
year = {Thu Apr 18 00:00:00 EDT 2019},
month = {Thu Apr 18 00:00:00 EDT 2019}
}
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