An open-cage bis[60]fulleroid as an electron transport material for tin halide perovskite solar cells

Liu, Wentao; Huang, Guanglin; Chen, Chien-Yu; Tan, Tiancheng; Fuyuki, Harata; Hu, Shuaifeng; Nakamura, Tomoya; Truong, Minh Anh; Murdey, Richard; Hashikawa, Yoshifumi; Murata, Yasujiro; Wakamiya, Atsushi

doi:10.1039/d3cc05843c

Chem. Commun.

2024

DOI: 10.1039/d3cc05843c

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An open-cage bis[60]fulleroid as an electron transport material for tin halide perovskite solar cells

Wentao Liu,

Guanglin Huang,

Chien-Yu Chen

et al.

Abstract: An open-cage bis[60]fulleroid (OC) was applied as electron transport material (ETM) in tin (Sn) halide perovskite solar cells (PSCs). Due to the reduced offset between the energy levels of Sn-based...

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Cited by 2 publications

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The rise and potential of top interface modification in tin halide perovskite solar cells

Pascual,

Ripolles,

Turren-Cruz

et al. 2024

Current Opinion in Colloid & Interface Science

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The rise and potential of top interface modification in tin halide perovskite solar cells

Pascual,

Ripolles,

Turren-Cruz

et al. 2024

Current Opinion in Colloid & Interface Science

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Enhanced Power Conversion Efficiency in Tin Halide Perovskite Solar Cells with Zinc Iodide Interlayers

Chen,

Harata,

Murdey

et al. 2024

ACS Energy Lett.

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Optimal alignment of the energy levels can improve the performance of perovskite solar cells. In this work, we show that energy level alignment can be enhanced by a vacuum-deposited zinc iodide (ZnI 2 ) layer inserted between tin perovskite and a C 60 electron transport layer. The open-circuit voltage of FA 0.75 MA 0.25 SnI 3 (FA: formamidinium; MA: methylammonium) solar cells increased by more than 0.1 V, while the power conversion efficiency increased from 10.2% to 12.8%. The shelf lifetimes of the devices are also improved. ZnI 2 interlayers are also effective with other perovskites compositions, such as FASnI 3 and PEA 0.15 FA 0.85 SnI 3 (PEA: phenethylammonium), with their device efficiencies increasing from 6.8% to 11.6% and from 6.2% to 9.5%, respectively. The energy level diagram, derived from Kelvin probe measurements, suggests that ZnI 2 interlayers reduce the band offset between perovskite and C 60 . As a result, the electron accumulation width in C 60 is reduced, mitigating nonradiative charge carrier recombination losses and increasing the device performance.

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An open-cage bis[60]fulleroid as an electron transport material for tin halide perovskite solar cells

Abstract: An open-cage bis[60]fulleroid (OC) was applied as electron transport material (ETM) in tin (Sn) halide perovskite solar cells (PSCs). Due to the reduced offset between the energy levels of Sn-based...

Cited by 2 publications

References 40 publications

The rise and potential of top interface modification in tin halide perovskite solar cells

The rise and potential of top interface modification in tin halide perovskite solar cells

Enhanced Power Conversion Efficiency in Tin Halide Perovskite Solar Cells with Zinc Iodide Interlayers

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