Organometallic halide perovskite/barium di-silicide thin-film double-junction solar cells

R. Vismara; O. Isabella; M. Zeman

doi:10.1117/12.2227174

29 April 2016 Organometallic halide perovskite/barium di-silicide thin-film double-junction solar cells

R. Vismara, O. Isabella, M. Zeman

Proceedings Volume 9898, Photonics for Solar Energy Systems VI; 98980J (2016) https://doi.org/10.1117/12.2227174
Event: SPIE Photonics Europe, 2016, Brussels, Belgium

Abstract

Barium di-silicide (BaSi₂) is an abundant and inexpensive semiconductor with appealing opto-electrical properties. In this work we show that a 2-μm thick BaSi₂-based thin-film solar cell can exhibit an implied photo-current density equal to 41.1 mA/cm², which is higher than that of a state-of-the-art wafer-based c-Si hetero-junction solar cell. This performance makes BaSi₂ an attractive absorber for high-performing thin-film and multi-junction solar cells. In particular, to assess the potential of barium di-silicide, we propose a thin-film double-junction solar cell based on organometallic halide perovskite (CH₃NH₃PbI₃) as top absorber and BaSi₂ as bottom absorber. The resulting modelled ultra-thin double-junction CH₃NH₃PbI₃ / BaSi₂ (< 2 μm) exhibits an implied total photo-current density equal to 38.65 mA/cm² (19.84 mA/cm² top cell, 18.81 mA/cm² bottom cell) and conversion efficiencies up to 28%.

Citation Download Citation

R. Vismara, O. Isabella, and M. Zeman "Organometallic halide perovskite/barium di-silicide thin-film double-junction solar cells", Proc. SPIE 9898, Photonics for Solar Energy Systems VI, 98980J (29 April 2016); https://doi.org/10.1117/12.2227174

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