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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 - Electrical Engineering, Mathematics and Computer Science)

Ryoto Mishima (Kaneka Corporation)

Tomomi Meguro (Kaneka Corporation)

Masashi Hino (Kaneka Corporation)

Hisashi Uzu (Kaneka Corporation)

Johan Blanker (TU Delft - Electrical Engineering, Mathematics and Computer Science)

Kenji Yamamoto (Kaneka Corporation)

Miro Zeman (TU Delft - Electrical Engineering, Mathematics and Computer Science)

Research Group
Photovoltaic Materials and Devices
DOI related publication
https://doi.org/10.1364/OE.24.0A1288 Final published version
More Info
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Publication Year
2016
Language
English
Research Group
Photovoltaic Materials and Devices
Issue number
18
Volume number
24
Pages (from-to)
A1288-A1299
Downloads counter
297
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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.