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Fully Textured, Production-Line Compatible Monolithic Perovskite/Silicon Tandem Solar Cells Approaching 29% Efficiency.
- Source :
-
Advanced materials (Deerfield Beach, Fla.) [Adv Mater] 2022 Oct; Vol. 34 (40), pp. e2206193. Date of Electronic Publication: 2022 Sep 04. - Publication Year :
- 2022
-
Abstract
- Perovskite/silicon tandem solar cells are promising avenues for achieving high-performance photovoltaics with low costs. However, the highest certified efficiency of perovskite/silicon tandem devices based on economically matured silicon heterojunction technology (SHJ) with fully textured wafer is only 25.2% due to incompatibility between the limitation of fabrication technology which is not compatible with the production-line silicon wafer. Here, a molecular-level nanotechnology is developed by designing NiO <subscript>x</subscript> /2PACz ([2-(9H-carbazol-9-yl) ethyl]phosphonic acid) as an ultrathin hybrid hole transport layer (HTL) above indium tin oxide (ITO) recombination junction, to serve as a vital pivot for achieving a conformal deposition of high-quality perovskite layer on top. The NiO <subscript>x</subscript> interlayer facilitates a uniform self-assembly of 2PACz molecules onto the fully textured surface, thus avoiding direct contact between ITO and perovskite top-cell for a minimal shunt loss. As a result of such interfacial engineering, the fully textured perovskite/silicon tandem cells obtain a certified efficiency of 28.84% on a 1.2-cm <superscript>2</superscript> masked area, which is the highest performance to date based on the fully textured, production-line compatible SHJ. This work advances commercially promising photovoltaics with high performance and low costs by adopting a meticulously designed HTL/perovskite interface.<br /> (© 2022 Wiley-VCH GmbH.)
Details
- Language :
- English
- ISSN :
- 1521-4095
- Volume :
- 34
- Issue :
- 40
- Database :
- MEDLINE
- Journal :
- Advanced materials (Deerfield Beach, Fla.)
- Publication Type :
- Academic Journal
- Accession number :
- 35985840
- Full Text :
- https://doi.org/10.1002/adma.202206193