Planar‐Structure Perovskite Solar Cells with Efficiency beyond 21%
Chinese Academy of Sciences · Institute of Semiconductors · +2 more institutions
Abstract
Abstract Low temperature solution processed planar‐structure perovskite solar cells gain great attention recently, while their power conversions are still lower than that of high temperature mesoporous counterpart. Previous reports are mainly focused on perovskite morphology control and interface engineering to improve performance. Here, this study systematically investigates the effect of precise stoichiometry, especially the PbI 2 contents on device performance including efficiency, hysteresis and stability. This study finds that a moderate residual of PbI 2 can deliver stable and high efficiency of solar cells without hysteresis, while too much residual PbI 2 will lead to serious hysteresis and poor transit…
Citation impact
- FWCI
- 75.84
- Percentile
- 100%
- References
- 41
Authors
10- QJQi Jiang
Chinese Academy of Sciences, Institute of Semiconductors, Academy of Opto-Electronics, University of Chinese Academy of Sciences
- ZCZema Chu
Chinese Academy of Sciences, Institute of Semiconductors
- PWPengyang Wang
Chinese Academy of Sciences, Institute of Semiconductors, Academy of Opto-Electronics, University of Chinese Academy of Sciences
- XYXiaolei Yang
Chinese Academy of Sciences, Institute of Semiconductors
- HLHeng Liu
Chinese Academy of Sciences, Institute of Semiconductors, Academy of Opto-Electronics, University of Chinese Academy of Sciences
Topics & keywords
- Materials science
- Perovskite (structure)
- Hysteresis
- Planar
- Energy conversion efficiency
- Mesoporous material
- Stoichiometry
- Layer (electronics)
- Affordable and clean energy