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

Journal article (2016)

Authors

R. Santbergen Photovoltaic Materials and Devices - EEMCS
Ryoto Mishima Kaneka Corporation
Tomomi Meguro Kaneka Corporation
Masashi Hino Kaneka Corporation
Hisashi Uzu Kaneka Corporation
A.J. Blanker Photovoltaic Materials and Devices - EEMCS
Kenji Yamamoto Kaneka Corporation
M. Zeman Electrical Sustainable Energy
Research Group
Photovoltaic Materials and Devices (EEMCS) (TU Delft)
Copyright: © 2016 R. Santbergen, Ryoto Mishima, Tomomi Meguro, Masashi Hino, Hisashi Uzu, A.J. Blanker, Kenji Yamamoto, M. Zeman
DOI: https://doi.org/10.1364/OE.24.0A1288
Photovoltaic Thin films Solar energy
More Info
expand_more

Published Date

05-09-2016

Language

English

Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Electrical Sustainable Energy

Research Group

Photovoltaic Materials and Devices

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.