A polymer tandem solar cell with 10.6% power conversion efficiency
University of California, Los Angeles · Sumitomo Chemical (Japan) · +2 more institutions
Abstract
An effective way to improve polymer solar cell efficiency is to use a tandem structure, as a broader part of the spectrum of solar radiation is used and the thermalization loss of photon energy is minimized. In the past, the lack of high-performance low-bandgap polymers was the major limiting factor for achieving high-performance tandem solar cell. Here we report the development of a high-performance low bandgap polymer (bandgap 60% and spectral response that extends to 900 nm, with a power conversion efficiency of 7.9%. The polymer enables a solution processed tandem solar cell with certified 10.6% power conversion efficiency under standard reporting conditions (25 °C, 1,000 Wm(-2), IEC 60904-3 global), which…
Citation impact
- FWCI
- 450.43
- Percentile
- 100%
- References
- 56
Authors
11Topics & keywords
- Tandem
- Quantum efficiency
- Energy conversion efficiency
- Band gap
- Polymer
- Optoelectronics
- Materials science
- Polymer solar cell
- Affordable and clean energy