Mitigating Solar Cell Degradation
Heterojunction (HJ) Si solar cells have world record efficiencies approaching 27%. However, these Si HJ solar cells have not yet been widely adopted by the market because they exhibit a performance degradation of about 1%/year, twice as high as standard cSi cells. Our group is adapting the knowledge developed via studying glassy systems to understand the leading degradation processes, with the aim of mitigating them.
LAMMPS molecular dynamics, Quantum Espresso DFT, Nudged Elastic Band method.
- 2021. D. Unruh, R. V. Meidanshahi, C. Hansen, S. Manzoor, S. M. Goodnick, M. I. Bertoni, and G. T. Zimanyi From Femtoseconds to Gigaseconds: The SolDeg Platform for the Performance Degradation Analysis of Silicon Heterojunction Solar Cells arxiv:2012.01703
- 2020. G. T. Zimányi, C. Hansen, D. Strubbe. Performance Degradation in aSi/cSi Heterojunction Solar Cells by Glassy Dynamics. DOI: 10.1109/PVSC40753.2019.8980939.