Stabilizing perovskite-substrate interfaces for high-performance perovskite modules
Abstract
The buried interfaces of perovskite solar cells are difficult to alter after synthesis. During manufacture, Chen et al . removed perovskite films with dimethyl sulfoxide solvent from the hole-transfer layer and observed a substantial void fraction that degraded film performance. Replacing most of the dimethyl sulfoxide with carbohydrazide, a lead-coordinating compound with a much higher boiling point, eliminated voids. Such solar cells maintained high power conversion efficiency after 550 hours of operation at 60°C. —PDS
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 20, 2021
- Source ID
- 10.1126/science.abi6323
Entities
People
- Haoyang Jiao
- Jinsong Huang
- Liang Zhao
- Shangshang Chen
- Shuang Xu
- Xuezeng Dai
Organizations
- Office of Naval Research
- United States Department of Energy
- University of North Carolina