Abstract
Perovskite-on-silicon tandem solar cells show potential to reach > 30% conversion efficiency, but require careful optical control. We introduce here an effective light-management scheme based on the established pyramidal texturing of crystalline silicon cells. Calculations show that conformal deposition of a thin film perovskite solar cell directly onto the textured front surface of a high efficiency silicon cell can yield front surface reflection losses as low as 0.52mA/cm2. Combining this with a wavelength-selective intermediate reflector between the cells additionally provides effective light-trapping in the high-bandgap top cell, resulting in calculated absolute efficiency gains of 2 – 4%. This approach provides a practical and effective method to adapt existing high efficiency silicon cell designs for use in tandem cells, with conversion efficiencies approaching 35%.
© 2014 Optical Society of America
Full Article | PDF ArticleMore Like This
Jinpeng Yang and Qinye Bao
Opt. Express 32(6) 8614-8622 (2024)
H. Chung, K-Y. Jung, X. T. Tee, and P. Bermel
Opt. Express 22(S3) A818-A832 (2014)
N. Tucher, O. Höhn, J. N. Murthy, J. C. Martinez, M. Steiner, A. Armbruster, E. Lorenz, B. Bläsi, and J. C. Goldschmidt
Opt. Express 27(20) A1419-A1430 (2019)