Enhanced charge carrier transport and defects mitigation of passivation layer for efficient perovskite solar cells
Institute of Semiconductors · University of Chinese Academy of Sciences · +5 more institutions
Abstract
Surface passivation has been developed as an effective strategy to reduce trap-state density and suppress non-radiation recombination process in perovskite solar cells. However, passivation agents usually own poor conductivity and hold negative impact on the charge carrier transport in device. Here, we report a binary and synergistical post-treatment method by blending 4-tert-butyl-benzylammonium iodide with phenylpropylammonium iodide and spin-coating on perovskite surface to form passivation layer. The binary and synergistical post-treated films show enhanced crystallinity and improved molecular packing as well as better energy band alignment, benefiting for the hole extraction and transfer. Moreover, the…
Citation impact
- FWCI
- 32.77
- Percentile
- 100%
- References
- 76
Authors
11- ZQZihan QuCorresponding
Institute of Semiconductors, University of Chinese Academy of Sciences
- YZYang Zhao
Liaoning University, Institute of Semiconductors, University of Chinese Academy of Sciences
- FMFei Ma
Institute of Semiconductors, University of Chinese Academy of Sciences
- LMLe Mei
City University of Hong Kong, Soochow University
- XCXiankai Chen
Soochow University
Topics & keywords
- Passivation
- Perovskite (structure)
- Materials science
- Layer (electronics)
- Charge (physics)
- Charge carrier
- Transport layer
- Optoelectronics
- Climate action