Realizing Stable Perovskite Solar Cells with Efficiency Exceeding 25.6% Through Crystallization Kinetics and Spatial Orientation Regulation
Academy of Opto-Electronics · University of Chinese Academy of Sciences · +3 more institutions
Abstract
Organic-inorganic hybrid perovskites have emerged as highly promising candidates for photovoltaic applications, owing to the exceptional optoelectronic properties and low cost. Nonetheless, the performance and stability of solar cells suffer from the defect states of perovskite films aroused by non-optically active phases and non-centralized crystal orientation. Herein, a versatile organic molecule, Hydantoin, to modulate the crystallization of perovskite, is developed. Benefiting from the diverse functional groups, more spatially oriented perovskite films with high crystallinity are formed. This enhancement is accompanied by a conspicuous reduction in defect density, yielding efficiency of 25.66% (certified…
Citation impact
- FWCI
- 26.43
- Percentile
- 100%
- References
- 42
Authors
11Topics & keywords
- Materials science
- Perovskite (structure)
- Crystallinity
- Crystallization
- Energy conversion efficiency
- Photovoltaic system
- Chemical engineering
- Solar cell