Abstract
Simplifying the manufacturing processes of renewable energy technologies is crucial to lowering the barriers to commercialization. In this context, to improve the manufacturability of perovskite solar cells (PSCs), we have developed a one-step solution-coating procedure in which the hole-selective contact and perovskite light absorber spontaneously form, resulting in efficient inverted PSCs. We observed that phosphonic or carboxylic acids, incorporated into perovskite precursor solutions, self-assemble on the indium tin oxide substrate during perovskite film processing. They form a robust self-assembled monolayer as an excellent hole-selective contact while the perovskite crystallizes. Our approach solves wettability issues and simplifies device fabrication, advancing the manufacturability of PSCs. Our PSC devices with positive–intrinsic–negative (p-i-n) geometry show a power conversion efficiency of 24.5% and retain >90% of their initial efficiency after 1,200 h of operating at the maximum power point under continuous illumination. The approach shows good generality as it is compatible with different self-assembled monolayer molecular systems, perovskites, solvents and processing methods.
Original language | English |
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Pages (from-to) | 462-472 |
Number of pages | 11 |
Journal | Nature Energy |
Volume | 8 |
Issue number | 5 |
DOIs | |
State | Published - May 2023 |
Bibliographical note
Funding Information:This work was authored in part by the National Renewable Energy Laboratory, operated by Alliance for Sustainable Energy, for the US Department of Energy (DOE) under contract no. DE-AC36-08GO28308. This work was primarily supported as part of the Center for Hybrid Organic-Inorganic Semiconductors for Energy (CHOISE), an Energy Frontier Research Center funded by the Office of Basic Energy Sciences, Office of Science within the US DOE. The scalable manufacturing work carried out at the NREL was supported by the US DOE’s Office of Energy Efficiency and Renewable Energy (EERE) under the Solar Energy Technologies Office (SETO) Advanced Perovskite Cells and Modules program of the National Center for Photovoltaics. The work at City University of Hong Kong was supported by the Innovation and Technology Fund (GHP/102/20GD, Hong Kong). The work at École Polytechnique Fédérale de Lausanne (EPFL) was supported by an NPRP grant (NPRP11S-1231-170150) from the Qatar National Research Fund (a member of the Qatar Foundation) and the Valais Energy Demonstrators Fund. T.L., H.P. and K.R.G. acknowledge funding from the National Science Foundation under award nos. OIA-1929131 (T.L. and K.R.G) and 2102257 (H.P. and K.R.G). The work at Brown University was supported by the Office of Naval Research (grant no. N00014-20-1-2574) and the US DOE’s EERE through SETO award no. DE-0009511. The views expressed in the article do not necessarily represent the views of the US DOE or the US Government.
Funding Information:
This work was authored in part by the National Renewable Energy Laboratory, operated by Alliance for Sustainable Energy, for the US Department of Energy (DOE) under contract no. DE-AC36-08GO28308. This work was primarily supported as part of the Center for Hybrid Organic-Inorganic Semiconductors for Energy (CHOISE), an Energy Frontier Research Center funded by the Office of Basic Energy Sciences, Office of Science within the US DOE. The scalable manufacturing work carried out at the NREL was supported by the US DOE’s Office of Energy Efficiency and Renewable Energy (EERE) under the Solar Energy Technologies Office (SETO) Advanced Perovskite Cells and Modules program of the National Center for Photovoltaics. The work at City University of Hong Kong was supported by the Innovation and Technology Fund (GHP/102/20GD, Hong Kong). The work at École Polytechnique Fédérale de Lausanne (EPFL) was supported by an NPRP grant (NPRP11S-1231-170150) from the Qatar National Research Fund (a member of the Qatar Foundation) and the Valais Energy Demonstrators Fund. T.L., H.P. and K.R.G. acknowledge funding from the National Science Foundation under award nos. OIA-1929131 (T.L. and K.R.G) and 2102257 (H.P. and K.R.G). The work at Brown University was supported by the Office of Naval Research (grant no. N00014-20-1-2574) and the US DOE’s EERE through SETO award no. DE-0009511. The views expressed in the article do not necessarily represent the views of the US DOE or the US Government.
Publisher Copyright:
© 2023, The Author(s), under exclusive licence to Springer Nature Limited.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Renewable Energy, Sustainability and the Environment
- Fuel Technology
- Energy Engineering and Power Technology