Minimizing optical losses in monolithic perovskite/c-Si tandem solar cells with a flat top cell

Journal Article (2016)
Author(s)

Rudi Santbergen (TU Delft - Photovoltaic Materials and Devices)

Ryoto Mishima (Kaneka Corporation)

Tomomi Meguro (Kaneka Corporation)

Masashi Hino (Kaneka Corporation)

Hisashi Uzu (Kaneka Corporation)

A.J. Blanker (TU Delft - Photovoltaic Materials and Devices)

Kenji Yamamoto (Kaneka Corporation)

M. Zeman (TU Delft - Electrical Sustainable Energy)

Research Group
Photovoltaic Materials and Devices
Copyright
© 2016 R. Santbergen, Ryoto Mishima, Tomomi Meguro, Masashi Hino, Hisashi Uzu, A.J. Blanker, Kenji Yamamoto, M. Zeman
DOI related publication
https://doi.org/10.1364/OE.24.0A1288
More Info
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Publication Year
2016
Language
English
Copyright
© 2016 R. Santbergen, Ryoto Mishima, Tomomi Meguro, Masashi Hino, Hisashi Uzu, A.J. Blanker, Kenji Yamamoto, M. Zeman
Research Group
Photovoltaic Materials and Devices
Issue number
18
Volume number
24
Pages (from-to)
A1288-A1299
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Abstract

In a monolithic perovskite/c-Si tandem device, the perovskite top cell has to be deposited onto a flat c-Si bottom cell without anti-reflective front side texture, to avoid fabrication issues. We use optical simulations to analyze the reflection losses that this induces. We then systematically minimize these losses by introducing surface textures in combination with a so-called burial layer to keep the perovskite top cell flat. Optical simulations show that, even with a flat top cell, the monolithic perovskite/c-Si tandem device can reach a matched photocurrent density as high as 19.57 mA/cm2.