Simultaneous Bottom-Up Interfacial and Bulk Defect Passivation in Highly Efficient Planar Perovskite Solar Cells using Nonconjugated Small-Molecule Electrolytes
Abstract
Recent perovskite solar cell (PSC) advances have pursued strategies for reducing interfacial energetic mismatches to mitigate energy losses, as well as to minimize interfacial and bulk defects and ion vacancies to maximize charge transfer. In this work, nonconjugated multi-zwitterionic small-molecule electrolytes (NSEs) are introduced, which act not only as charge-extracting layers for barrier-free charge collection at planar triple cation PSC cathodes but also passivate charged defects at the perovskite bulk/interface via a spontaneous bottom-up passivation effect. Implementing these synergistic properties affords NSE-based planar PSCs that deliver a remarkable power conversion efficiency of 21.18% with a maximum VOC = 1.19 V, in combination with suppressed hysteresis and enhanced environmental, thermal, and light-soaking stability. Thus, this work demonstrates that the bottom-up, simultaneous interfacial and bulk trap passivation using NSE modifiers is a promising strategy to overcome outstanding issues impeding further PSC advances.
- Authors:
-
[1];
[4];
[3];
[5];
[3];
[2];
[3];
[3]
- Northwestern Univ., Evanston, IL (United States). Materials Research Science and Engineering Center; Univ. of Electronic Science and Technology of China (UESTC), Chengdu (China)
- Chinese Academy of Sciences (CAS), Ningbo (China). Ningbo Inst. of Materials Technology and Engineering
- Northwestern Univ., Evanston, IL (United States). Materials Research Science and Engineering Center
- Department of Materials Science and EngineeringThe NUANCE CenterNorthwestern University Evanston IL 60208 USA
- Univ. of Electronic Science and Technology of China (UESTC), Chengdu (China)
- Publication Date:
- Research Org.:
- Energy Frontier Research Centers (EFRC) (United States). Center for Light Energy Activated Redox Processes (LEAP); Northwestern Univ., Evanston, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); National Key Research and Development Program of China; Chinese Academy of Sciences (CAS); National Natural Science Foundation of China (NSFC); China Scholarship Council
- OSTI Identifier:
- 1767509
- Alternate Identifier(s):
- OSTI ID: 1556796
- Grant/Contract Number:
- SC0001059; DMR-1720139; ECCS-1542205; 2017YFE0106000; 74433KYSB20160065; 2015B11002; 2016B10005; 2018YFB0407102; 61421002; 61675041; 51703019
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Advanced Materials
- Additional Journal Information:
- Journal Volume: 31; Journal Issue: 40; Journal ID: ISSN 0935-9648
- Publisher:
- Wiley
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; catalysis (homogeneous); catalysis (heterogeneous); solar (photovoltaic); solar (fuels); optics; phonons; photosynthesis (natural and artificial); bio-inspired; hydrogen and fuel cells; charge transport; magnetism and spin physics; materials and chemistry by design; mesostructured materials; synthesis (novel materials); synthesis (self-assembly); synthesis (scalable processing); bottom-up passivation; electron-transport layer; perovskite solar cells; zwitterions
Citation Formats
Zheng, Ding, Peng, Ruixiang, Wang, Gang, Logsdon, Jenna Leigh, Wang, Binghao, Hu, Xiaobing, Chen, Yao, Dravid, Vinayak P., Wasielewski, Michael R., Yu, Junsheng, Huang, Wei, Ge, Ziyi, Marks, Tobin J., and Facchetti, Antonio. Simultaneous Bottom-Up Interfacial and Bulk Defect Passivation in Highly Efficient Planar Perovskite Solar Cells using Nonconjugated Small-Molecule Electrolytes. United States: N. p., 2019.
Web. doi:10.1002/adma.201903239.
Zheng, Ding, Peng, Ruixiang, Wang, Gang, Logsdon, Jenna Leigh, Wang, Binghao, Hu, Xiaobing, Chen, Yao, Dravid, Vinayak P., Wasielewski, Michael R., Yu, Junsheng, Huang, Wei, Ge, Ziyi, Marks, Tobin J., & Facchetti, Antonio. Simultaneous Bottom-Up Interfacial and Bulk Defect Passivation in Highly Efficient Planar Perovskite Solar Cells using Nonconjugated Small-Molecule Electrolytes. United States. https://doi.org/10.1002/adma.201903239
Zheng, Ding, Peng, Ruixiang, Wang, Gang, Logsdon, Jenna Leigh, Wang, Binghao, Hu, Xiaobing, Chen, Yao, Dravid, Vinayak P., Wasielewski, Michael R., Yu, Junsheng, Huang, Wei, Ge, Ziyi, Marks, Tobin J., and Facchetti, Antonio. Mon .
"Simultaneous Bottom-Up Interfacial and Bulk Defect Passivation in Highly Efficient Planar Perovskite Solar Cells using Nonconjugated Small-Molecule Electrolytes". United States. https://doi.org/10.1002/adma.201903239. https://www.osti.gov/servlets/purl/1767509.
@article{osti_1767509,
title = {Simultaneous Bottom-Up Interfacial and Bulk Defect Passivation in Highly Efficient Planar Perovskite Solar Cells using Nonconjugated Small-Molecule Electrolytes},
author = {Zheng, Ding and Peng, Ruixiang and Wang, Gang and Logsdon, Jenna Leigh and Wang, Binghao and Hu, Xiaobing and Chen, Yao and Dravid, Vinayak P. and Wasielewski, Michael R. and Yu, Junsheng and Huang, Wei and Ge, Ziyi and Marks, Tobin J. and Facchetti, Antonio},
abstractNote = {Recent perovskite solar cell (PSC) advances have pursued strategies for reducing interfacial energetic mismatches to mitigate energy losses, as well as to minimize interfacial and bulk defects and ion vacancies to maximize charge transfer. In this work, nonconjugated multi-zwitterionic small-molecule electrolytes (NSEs) are introduced, which act not only as charge-extracting layers for barrier-free charge collection at planar triple cation PSC cathodes but also passivate charged defects at the perovskite bulk/interface via a spontaneous bottom-up passivation effect. Implementing these synergistic properties affords NSE-based planar PSCs that deliver a remarkable power conversion efficiency of 21.18% with a maximum VOC = 1.19 V, in combination with suppressed hysteresis and enhanced environmental, thermal, and light-soaking stability. Thus, this work demonstrates that the bottom-up, simultaneous interfacial and bulk trap passivation using NSE modifiers is a promising strategy to overcome outstanding issues impeding further PSC advances.},
doi = {10.1002/adma.201903239},
journal = {Advanced Materials},
number = 40,
volume = 31,
place = {United States},
year = {Mon Aug 12 00:00:00 EDT 2019},
month = {Mon Aug 12 00:00:00 EDT 2019}
}
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