Target Therapy for Buried Interface Enables Stable Perovskite Solar Cells with 25.05% Efficiency
Chinese Academy of Sciences · Southern University of Science and Technology · +4 more institutions
Abstract
Abstract The buried interface in perovskite solar cells (PSCs) is pivotal for achieving high efficiency and stability. However, it is challenging to study and optimize the buried interface due to its non‐exposed feature. Here, a facile and effective strategy is developed to modify the SnO 2 /perovskite buried interface by passivating the buried defects in perovskite and modulating carrier dynamics via incorporating formamidine oxalate (FOA) in SnO 2 nanoparticles. Both formamidinium and oxalate ions show a longitudinal gradient distribution in the SnO 2 layer, mainly accumulating at the SnO 2 /perovskite buried interface, which enables high‐quality upper perovskite films, minimized defects, superior interface…
Citation impact
- FWCI
- 25.73
- Percentile
- 100%
- References
- 55
Authors
14- XJXiaofei Ji
Chinese Academy of Sciences, Southern University of Science and Technology, Shanghai Advanced Research Institute
- LBLeyu Bi
City University of Hong Kong
- QFQiang FuCorresponding
City University of Hong Kong
- BLBolin Li
Southern University of Science and Technology
- JWJunwei Wang
Southern University of Science and Technology
Topics & keywords
- Materials science
- Perovskite (structure)
- Formamidinium
- Optoelectronics
- Layer (electronics)
- Interface (matter)
- Chemical engineering
- Nanotechnology
- Affordable and clean energy
Funding
- CUCity University of Hong KongAwards: 11307621, MRP/040/21X, 202020164, 11316422, GHP/018/20SZ, 9380086
- APAromatic Plant Research Center
- NNNational Natural Science Foundation of ChinaAwards: 52173171, 2019B030302007
- IAInnovation and Technology CommissionAwards: GHP/018/20SZ, MRP/040/21X
- STScience, Technology and Innovation Commission of Shenzhen MunicipalityAward: JCYJ20220818100617037