Solution-Processed Metal-Oxide Nanoparticles to Prevent The Sputtering Damage in Perovskite/Silicon Tandem Solar Cells
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Magliano, Erica
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Di Giacomo, Francesco
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Reddy, Sathy Harshavardhan
- Pourmotlagh, Shirin1
- Giliberti, Gemma
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Becerril Rodriguez, David
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Ammirati, Giuseppe
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Mariani, Paolo1
- Zarotti, Francesca1
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Matteocci, Fabio2
- Luce, Marco
- Usatii, Iurie
- Bobeico, Eugenia
- Noce, Marco Della
- Cricenti, Antonio
- Cappelluti, Federica
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Mercaldo, Lucia
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Delli Veneri, paola
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Di Carlo, Aldo
- 1. C.H.O.S.E
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2.
University of Rome Tor Vergata
Description
Semitransparent perovskite solar cells (ST-PSCs) for tandem applications typically use a buffer layer deposited via atomic layer deposition (ALD) to protect the cell stack from the damage induced by the sputtering of the transparent electrode. Here, we present a simple yet effective solution-processed buffer layer based on metal-oxide nanoparticles to mitigate sputter-induced damage. We exploit this strategy in a monolithic tandem integrating the optimized ST-PSC on a polished front-side/unpolished rear-side p-type silicon heterojunction (SHJ) solar cell. The intrinsic roughness on the backside significantly boosts the absorption, thus suppressing the need for a dedicated texturization step and leading to a final maximum efficiency of 25.3%. Our findings highlight the potential of solution-processed buffer layers as a practical and scalable solution to mitigate the sputtering damage, as well as the potential of silicon wafers with an unpolished rear surface for enhanced photocurrent.
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CNR_Solution-processed-metal-oxide-nanoparticles.pdf
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- Repository URL
- https://pubs.acs.org/doi/10.1021/acsami.5c00090