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Poster communications

Low-temperature deposition of transparent conductive layers for perovskite-silicon tandem cells

Abstract : Since 2013, single-junction research-cell power conversion efficiencies of perovskite cells have risen by about 8%$_{abs}$ to 22.1%, while multicrystalline silicon and monocrystalline silicon efficiencies have risen by less than 2% abs and less than 1% abs , respectively Tandem cells with a perovskite top cell and a silicon bottom cell, recently achieving 23.6% in two-terminal configuration, present a promising alternative to further increase the relatively stagnant performance of already highly-optimized single-junction silicon cells. To facilitate such an advance, methods to deposit high-quality transparent conductors (TCs) which do not subject the perovskite layer to degradation during deposition need to be found. We utilize a spin-coating solution deposition process optimized for high reproducibility, yielding the single-junction MAPbl$_{3-x}$ Cl x perovskite cell stack shown in Figure 1, with an average efficiency of 7.94 $\pm$ 0.68 % with a non-transparent electrode. Two different TC electrodes are tested on these cells: evaporated thin-film semi-transparent Ag layers and low-temperature RF-sputtered indium tin oxide layers. For the latter, buffer layers of either thin-film Ag, Ag/BCP, Ag nanowires or interlinked PCBM are used to protect the organic layer stack from sputtering damage. By comparing transparency and efficiency, we will identify the most suitable approach
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https://hal-cea.archives-ouvertes.fr/cea-02340816
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Submitted on : Thursday, October 31, 2019 - 8:37:52 AM
Last modification on : Wednesday, October 14, 2020 - 4:06:38 AM
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Jonas van Stappen, Chloé Dindault, Tiphaine Bourgeteau, Heejae Lee, Denis Tondelier, et al.. Low-temperature deposition of transparent conductive layers for perovskite-silicon tandem cells. SPIC 2017 (Science et Technologie des Systèmes pi-Conjugués), Oct 2017, Limoges, France. ⟨cea-02340816⟩

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