Efficient, stable silicon tandem cells enabled by anion-engineered wide-bandgap perovskites
National Laboratory of the Rockies · Korea Advanced Institute of Science and Technology · +4 more institutions
Abstract
Maximizing the power conversion efficiency (PCE) of perovskite/silicon tandem solar cells that can exceed the Shockley-Queisser single-cell limit requires a high-performing, stable perovskite top cell with a wide bandgap. We developed a stable perovskite solar cell with a bandgap of ~1.7 electron volts that retained more than 80% of its initial PCE of 20.7% after 1000 hours of continuous illumination. Anion engineering of phenethylammonium-based two-dimensional (2D) additives was critical for controlling the structural and electrical properties of the 2D passivation layers based on a lead iodide framework. The high PCE of 26.7% of a monolithic two-terminal wide-bandgap perovskite/silicon tandem solar cell was…
Citation impact
- FWCI
- 42.97
- Percentile
- 100%
- References
- 37
Authors
22- DKDaehan KimCorresponding
National Laboratory of the Rockies, Korea Advanced Institute of Science and Technology, Sejong University
- HJHee Joon JungCorresponding
Northwestern University
- IJIk Jae ParkCorresponding
Seoul National University
- BWBryon W. Larson
National Laboratory of the Rockies
- SPSean P. Dunfield
National Laboratory of the Rockies, University of Colorado Boulder
Topics & keywords
- Tandem
- Perovskite (structure)
- Silicon
- Band gap
- Energy conversion efficiency
- Bromine
- Materials science
- Ion
- Affordable and clean energy
Funding
- NSNational Science FoundationAwards: NSF DMR-1720139, NSF ECCS-1542205
- UDU.S. Department of Energy
- NRNational Research Foundation of KoreaAwards: 2019M3D1A2104109, 2020R1A2C3008111, 2018M3A7B4065662, NRF-2018R1A5A1025594
- KIKorea Institute of Energy Technology Evaluation and PlanningAwards: 20183010014470, 20193091010310