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

Rudi Santbergen, Ryoto Mishima, Tomomi Meguro, Masashi Hino, Hisashi Uzu, Johan Blanker, Kenji Yamamoto, Miro Zeman

Research output: Contribution to journalArticleScientificpeer-review

55 Citations (Scopus)
241 Downloads (Pure)

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.

Original languageEnglish
Pages (from-to)A1288-A1299
Number of pages12
JournalOptics Express
Volume24
Issue number18
DOIs
Publication statusPublished - 5 Sep 2016

Keywords

  • Solar energy
  • Photovoltaic
  • Thin films

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