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Double-absorber thin-film solar cell with 34% efficiency
- Source :
- Appl. Phys. Lett. 117, 033901 (2020)
- Publication Year :
- 2020
-
Abstract
- Power-conversion efficiency is a critical factor for the wider adoption of solar-cell modules. Thin-film solar cells are cheap and easy to manufacture, but their efficiencies are low compared to crystalline-silicon solar cells and need to be improved. A thin-film solar cell with two absorber layers (instead of only one), with bandgap energy graded in both, can capture solar photons in a wider spectral range. With a 300-nm-thick CIGS~absorber layer and an 870-nm-thick CZTSSe~absorber layer, an efficiency of $34.45\%$ is predicted by a detailed optoelectronic model, provided that the grading of bandgap energy is optimal in both absorber layers.<br />Comment: 4 pages, 3 figures
- Subjects :
- Physics - Applied Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- Appl. Phys. Lett. 117, 033901 (2020)
- Publication Type :
- Report
- Accession number :
- edsarx.2006.06454
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1063/5.0017916