Steering perovskite precursor solutions for multijunction photovoltaics
Kyoto University · University of Oxford · +10 more institutions
Abstract
Abstract Multijunction photovoltaics (PVs) are gaining prominence owing to their superior capability of achieving power conversion efficiencies (PCEs) beyond the radiative limit of single-junction cells 1–8 , for which improving narrow-bandgap (NBG) tin–lead perovskites is critical for thin-film devices 9 . Here, with a focus on understanding the chemistry of tin–lead perovskite precursor solutions, we find that Sn( ii ) species dominate interactions with precursors and additives and uncover the exclusive role of carboxylic acid in regulating solution colloidal properties and film crystallization and ammonium in improving film optoelectronic properties. Materials that combine these two functional groups, amino…
Citation impact
- FWCI
- 23.77
- Percentile
- 100%
- References
- 79
Authors
32- SHShuaifeng HuCorresponding
Kyoto University, University of Oxford, Kyoto University Institute for Chemical Research
- JWJunke Wang
University of Oxford, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
- PZPei Zhao
University of Oxford, Institute for Molecular Science
- JPJorge Pascual
Kyoto University, Polymat, Kyoto University Institute for Chemical Research
- JWJianan Wang
University of Oxford, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
Topics & keywords
- Photovoltaics
- Perovskite (structure)
- Materials science
- Environmental science
- Optoelectronics
- Photovoltaic system
- Chemical engineering
- Electrical engineering