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- W4311131750 abstract "Inverted perovskite solar cells still suffer from significant non-radiative recombination losses at the perovskite surface and across the perovskite/C60 interface, limiting the future development of perovskite-based single- and multi-junction photovoltaics. Therefore, more effective inter- or transport layers are urgently required. To tackle these recombination losses, we introduce ortho-carborane as an interlayer material that has a spherical molecular structure and a three-dimensional aromaticity. Based on a variety of experimental techniques, we show that ortho-carborane decorated with phenylamino groups effectively passivates the perovskite surface and essentially eliminates the non-radiative recombination loss across the perovskite/C60 interface with high thermal stability. We further demonstrate the potential of carborane as an electron transport material, facilitating electron extraction while blocking holes from the interface. The resulting inverted perovskite solar cells deliver a power conversion efficiency of over 23% with a low non-radiative voltage loss of 110 mV, and retain >97% of the initial efficiency after 400 h of maximum power point tracking. Overall, the designed carborane based interlayer simultaneously enables passivation, electron-transport and hole-blocking and paves the way toward more efficient and stable perovskite solar cells." @default.
- W4311131750 created "2022-12-23" @default.
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- W4311131750 date "2022-12-02" @default.
- W4311131750 modified "2023-10-18" @default.
- W4311131750 title "Overcoming C60-induced interfacial recombination in inverted perovskite solar cells by electron-transporting carborane" @default.
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- W4311131750 doi "https://doi.org/10.1038/s41467-022-34203-x" @default.
- W4311131750 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/36460635" @default.
- W4311131750 hasPublicationYear "2022" @default.
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