Open AccessMinimizing optical losses in monolithic perovskite/c-Si tandem solar cells with a flat top cell
Author(s) -
Rudi Santbergen,
Ryota Mishima,
T. Meguro,
Masashi Hino,
Hisashi Uzu,
Johan Blanker,
Kenji Yamamoto,
Miro Zeman
Publication year - 2016
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.0a1288
Subject(s) - tandem , perovskite (structure) , photocurrent , materials science , fabrication , optoelectronics , optics , perovskite solar cell , reflection (computer programming) , solar cell , silicon , composite material , computer science , chemistry , crystallography , medicine , alternative medicine , physics , pathology , programming language
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/cm 2 .