Solution-processed small-molecule solar cells: breaking the 10% power conversion efficiency
University of California, Los Angeles · California NanoSystems Institute
Abstract
A two-dimensional conjugated small molecule (SMPV1) was designed and synthesized for high performance solution-processed organic solar cells. This study explores the photovoltaic properties of this molecule as a donor, with a fullerene derivative as an acceptor, using solution processing in single junction and double junction tandem solar cells. The single junction solar cells based on SMPV1 exhibited a certified power conversion efficiency of 8.02% under AM 1.5 G irradiation (100 mW cm(-2)). A homo-tandem solar cell based on SMPV1 was constructed with a novel interlayer (or tunnel junction) consisting of bilayer conjugated polyelectrolyte, demonstrating an unprecedented PCE of 10.1%. These results strongly…
Citation impact
- FWCI
- 86.37
- Percentile
- 100%
- References
- 47
Authors
9Topics & keywords
- Tandem
- Energy conversion efficiency
- Materials science
- Organic solar cell
- Bilayer
- Fullerene
- Photovoltaic system
- Polymer solar cell
- Affordable and clean energy