High-performance perovskite single-junction and textured perovskite/silicon tandem solar cells via slot-die-coating

Anand S. Subbiah, Furkan H. Isikgor, Calvyn T. Howells, Michele De Bastiani, Jiang Liu, Erkan Aydin, Francesco Furlan, Thomas G. Allen, Fuzong Xu, Shynggys Zhumagali, Sjoerd Hoogland, Edward H. Sargent, Iain McCulloch, Stefaan De Wolf

    Research output: Contribution to journalArticlepeer-review

    128 Scopus citations

    Abstract

    In this work, we report perovskite solar cells in the planar p-i-n configuration based on single-step, anti-solvent-free, low-temperature (70 °C) slot-die-coated methylammonium lead tri-iodide (MAPbI3). The devices are fabricated on hydrophobic poly(triarylamine) (PTAA) surfaces, using key strategies such as solvent engineering, enhanced ink-substrate dynamics, and surface passivation, enabling a power conversion efficiency (PCE) of 21.8%. We also adapted the technique to achieve the first slot-die-coated perovskite/silicon monolithic 2-terminal tandems, achieving a PCE of 23.8% utilizing a textured silicon bottom cell.

    Original languageBritish English
    Pages (from-to)3034-3040
    Number of pages7
    JournalACS Energy Letters
    Volume5
    Issue number9
    DOIs
    StatePublished - 11 Sep 2020

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