Balancing carrier transport in interconnection layer for efficient perovskite/organic tandem solar cells

Yidan An; Nan Zhang; Qi Liu; Wenlin Jiang; Gengxin Du; Desui Chen; Ming Liu; Xiaofeng Huang; Tingfeng Lei; Quanrun Qiu; Francis R. Lin; Xiao Cheng Zeng; Alex K.-Y. Jen; Hin-Lap Yip

doi:10.1038/s41467-025-58047-3

Balancing carrier transport in interconnection layer for efficient perovskite/organic tandem solar cells

Yidan An (Co-first Author), Nan Zhang (Co-first Author), Qi Liu, Wenlin Jiang, Gengxin Du, Desui Chen, Ming Liu, Xiaofeng Huang, Tingfeng Lei, Quanrun Qiu, Francis R. Lin, Xiao Cheng Zeng, Alex K.-Y. Jen, Hin-Lap Yip^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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Abstract

While individual perovskite and organic solar cells have demonstrated remarkable performance, achieving similar success in high-efficiency perovskite/organic tandem solar cells (TSCs) has been challenging, primarily due to large voltage deficits and severe non-radiative recombination. By exploring the fundamental mechanisms of carrier losses, we identify that imbalanced carrier transport, particularly inadequate hole transport in the organic subcell significantly limits the overall performance of perovskite/organic TSCs. Herein, we implement a hole transport self-assembled monolayer (SAM) anchored to MoO₃, which converts the inherently n-type MoO₃ to a p-type surface. Further, a SAM/MoO₃/SAM sandwich hole transport configuration is introduced, which significantly enhances hole extraction, facilitating a more balanced carrier transport, and markedly suppressing non-radiative recombination at the interconnection layer (ICL). The resulting perovskite/organic TSCs achieve a power conversion efficiency (PCE) of 26.05%, with an open-circuit voltage of 2.21 V (certified at 2.216 V) and enhanced operation stability. © The Author(s) 2025.

Original language	English
Article number	2759
Journal	Nature Communications
Volume	16
Online published	20 Mar 2025
DOIs	https://doi.org/10.1038/s41467-025-58047-3
Publication status	Published - 2025

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title = "Balancing carrier transport in interconnection layer for efficient perovskite/organic tandem solar cells",

abstract = "While individual perovskite and organic solar cells have demonstrated remarkable performance, achieving similar success in high-efficiency perovskite/organic tandem solar cells (TSCs) has been challenging, primarily due to large voltage deficits and severe non-radiative recombination. By exploring the fundamental mechanisms of carrier losses, we identify that imbalanced carrier transport, particularly inadequate hole transport in the organic subcell significantly limits the overall performance of perovskite/organic TSCs. Herein, we implement a hole transport self-assembled monolayer (SAM) anchored to MoO3, which converts the inherently n-type MoO3 to a p-type surface. Further, a SAM/MoO3/SAM sandwich hole transport configuration is introduced, which significantly enhances hole extraction, facilitating a more balanced carrier transport, and markedly suppressing non-radiative recombination at the interconnection layer (ICL). The resulting perovskite/organic TSCs achieve a power conversion efficiency (PCE) of 26.05%, with an open-circuit voltage of 2.21 V (certified at 2.216 V) and enhanced operation stability. {\textcopyright} The Author(s) 2025.",

author = "Yidan An and Nan Zhang and Qi Liu and Wenlin Jiang and Gengxin Du and Desui Chen and Ming Liu and Xiaofeng Huang and Tingfeng Lei and Quanrun Qiu and Lin, {Francis R.} and Zeng, {Xiao Cheng} and Jen, {Alex K.-Y.} and Hin-Lap Yip",

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T1 - Balancing carrier transport in interconnection layer for efficient perovskite/organic tandem solar cells

AU - An, Yidan

AU - Zhang, Nan

AU - Liu, Qi

AU - Jiang, Wenlin

AU - Du, Gengxin

AU - Chen, Desui

AU - Liu, Ming

AU - Huang, Xiaofeng

AU - Lei, Tingfeng

AU - Qiu, Quanrun

AU - Lin, Francis R.

AU - Zeng, Xiao Cheng

AU - Jen, Alex K.-Y.

AU - Yip, Hin-Lap

PY - 2025

Y1 - 2025

N2 - While individual perovskite and organic solar cells have demonstrated remarkable performance, achieving similar success in high-efficiency perovskite/organic tandem solar cells (TSCs) has been challenging, primarily due to large voltage deficits and severe non-radiative recombination. By exploring the fundamental mechanisms of carrier losses, we identify that imbalanced carrier transport, particularly inadequate hole transport in the organic subcell significantly limits the overall performance of perovskite/organic TSCs. Herein, we implement a hole transport self-assembled monolayer (SAM) anchored to MoO3, which converts the inherently n-type MoO3 to a p-type surface. Further, a SAM/MoO3/SAM sandwich hole transport configuration is introduced, which significantly enhances hole extraction, facilitating a more balanced carrier transport, and markedly suppressing non-radiative recombination at the interconnection layer (ICL). The resulting perovskite/organic TSCs achieve a power conversion efficiency (PCE) of 26.05%, with an open-circuit voltage of 2.21 V (certified at 2.216 V) and enhanced operation stability. © The Author(s) 2025.

AB - While individual perovskite and organic solar cells have demonstrated remarkable performance, achieving similar success in high-efficiency perovskite/organic tandem solar cells (TSCs) has been challenging, primarily due to large voltage deficits and severe non-radiative recombination. By exploring the fundamental mechanisms of carrier losses, we identify that imbalanced carrier transport, particularly inadequate hole transport in the organic subcell significantly limits the overall performance of perovskite/organic TSCs. Herein, we implement a hole transport self-assembled monolayer (SAM) anchored to MoO3, which converts the inherently n-type MoO3 to a p-type surface. Further, a SAM/MoO3/SAM sandwich hole transport configuration is introduced, which significantly enhances hole extraction, facilitating a more balanced carrier transport, and markedly suppressing non-radiative recombination at the interconnection layer (ICL). The resulting perovskite/organic TSCs achieve a power conversion efficiency (PCE) of 26.05%, with an open-circuit voltage of 2.21 V (certified at 2.216 V) and enhanced operation stability. © The Author(s) 2025.

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U2 - 10.1038/s41467-025-58047-3

DO - 10.1038/s41467-025-58047-3

M3 - RGC 21 - Publication in refereed journal

SN - 2041-1723

VL - 16

JO - Nature Communications

JF - Nature Communications

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Balancing carrier transport in interconnection layer for efficient perovskite/organic tandem solar cells

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