Self-assembled materials with an ordered hydrophilic bilayer for high performance inverted Perovskite solar cells

Geping Qu; Letian Zhang; Ying Qiao; Shaokuan Gong; Yuanjia Ding; Yuli Tao; Siyuan Cai; Xiao-Yong Chang; Qian Chen; Pengfei Xie; Junyuan Feng; Changqin Gao; Guopeng Li; Hui Xiao; Fei Wang; Hanlin Hu; Jie Yang; Shi Chen; Alex K.-Y. Jen; Xihan Chen; Zong-Xiang Xu

doi:10.1038/s41467-024-55523-0

Self-assembled materials with an ordered hydrophilic bilayer for high performance inverted Perovskite solar cells

Geping Qu, Letian Zhang, Ying Qiao, Shaokuan Gong, Yuanjia Ding, Yuli Tao, Siyuan Cai, Xiao-Yong Chang, Qian Chen, Pengfei Xie, Junyuan Feng, Changqin Gao, Guopeng Li, Hui Xiao, Fei Wang, Hanlin Hu, Jie Yang, Shi Chen, Alex K.-Y. Jen^*, Xihan Chen^*Zong-Xiang Xu^*

^*Corresponding author for this work

Department of Materials Science and Engineering

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

21 Citations (Scopus)

17 Downloads (CityUHK Scholars)

Abstract

While self-assembled material based inverted perovskite solar cells have surpassed power conversion efficiencies of 26%, enhancing their performance in large-area configurations remains a significant challenge. In this work, we report a self-assembled material based hole-selective layer 4-(7H-dibenzo[c,g]carbazol-7-yl)phenyl)phosphonic acid, with a π-expanded conjugation. The enhanced intermolecular π–π interactions facilitate the self-assembly of 4-(7H-dibenzo[c,g]carbazol-7-yl)phenyl)phosphonic acid molecules to form an ordered bilayer with a hydrophilic surface, which passivates the buried perovskite interface defect and enables high-quality and large-area perovskite preparation, while simultaneously enhancing interfacial charge extraction and transport. The certified efficiency of 4-(7H-dibenzo[c,g]carbazol-7-yl)phenyl)phosphonic acid based small-area (0.0715 cm²) device is 26.39% with high stability. Furthermore, a certified efficiency of 25.21% is achieved for a 99.12 mm² large area device. © The Author(s) 2024.

Original language	English
Article number	86
Journal	Nature Communications
Volume	16
Online published	2 Jan 2025
DOIs	https://doi.org/10.1038/s41467-024-55523-0
Publication status	Published - 2025

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This full text is made available under CC-BY-NC-ND 4.0. https://creativecommons.org/licenses/by-nc-nd/4.0/

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Qu, G., Zhang, L., Qiao, Y., Gong, S., Ding, Y., Tao, Y., Cai, S., Chang, X.-Y., Chen, Q., Xie, P., Feng, J., Gao, C., Li, G., Xiao, H., Wang, F., Hu, H., Yang, J., Chen, S., Jen, A. K.-Y., ... Xu, Z.-X. (2025). Self-assembled materials with an ordered hydrophilic bilayer for high performance inverted Perovskite solar cells. Nature Communications, 16, Article 86. https://doi.org/10.1038/s41467-024-55523-0

@article{c2a4eefde34e488cb055c42f33cd9e38,

title = "Self-assembled materials with an ordered hydrophilic bilayer for high performance inverted Perovskite solar cells",

abstract = "While self-assembled material based inverted perovskite solar cells have surpassed power conversion efficiencies of 26%, enhancing their performance in large-area configurations remains a significant challenge. In this work, we report a self-assembled material based hole-selective layer 4-(7H-dibenzo[c,g]carbazol-7-yl)phenyl)phosphonic acid, with a π-expanded conjugation. The enhanced intermolecular π–π interactions facilitate the self-assembly of 4-(7H-dibenzo[c,g]carbazol-7-yl)phenyl)phosphonic acid molecules to form an ordered bilayer with a hydrophilic surface, which passivates the buried perovskite interface defect and enables high-quality and large-area perovskite preparation, while simultaneously enhancing interfacial charge extraction and transport. The certified efficiency of 4-(7H-dibenzo[c,g]carbazol-7-yl)phenyl)phosphonic acid based small-area (0.0715 cm2) device is 26.39% with high stability. Furthermore, a certified efficiency of 25.21% is achieved for a 99.12 mm2 large area device. {\textcopyright} The Author(s) 2024.",

author = "Geping Qu and Letian Zhang and Ying Qiao and Shaokuan Gong and Yuanjia Ding and Yuli Tao and Siyuan Cai and Xiao-Yong Chang and Qian Chen and Pengfei Xie and Junyuan Feng and Changqin Gao and Guopeng Li and Hui Xiao and Fei Wang and Hanlin Hu and Jie Yang and Shi Chen and Jen, {Alex K.-Y.} and Xihan Chen and Zong-Xiang Xu",

year = "2025",

doi = "10.1038/s41467-024-55523-0",

language = "English",

volume = "16",

journal = "Nature Communications",

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Qu, G, Zhang, L, Qiao, Y, Gong, S, Ding, Y, Tao, Y, Cai, S, Chang, X-Y, Chen, Q, Xie, P, Feng, J, Gao, C, Li, G, Xiao, H, Wang, F, Hu, H, Yang, J, Chen, S, Jen, AK-Y, Chen, X & Xu, Z-X 2025, 'Self-assembled materials with an ordered hydrophilic bilayer for high performance inverted Perovskite solar cells', Nature Communications, vol. 16, 86. https://doi.org/10.1038/s41467-024-55523-0

TY - JOUR

T1 - Self-assembled materials with an ordered hydrophilic bilayer for high performance inverted Perovskite solar cells

AU - Qu, Geping

AU - Zhang, Letian

AU - Qiao, Ying

AU - Gong, Shaokuan

AU - Ding, Yuanjia

AU - Tao, Yuli

AU - Cai, Siyuan

AU - Chang, Xiao-Yong

AU - Chen, Qian

AU - Xie, Pengfei

AU - Feng, Junyuan

AU - Gao, Changqin

AU - Li, Guopeng

AU - Xiao, Hui

AU - Wang, Fei

AU - Hu, Hanlin

AU - Yang, Jie

AU - Chen, Shi

AU - Jen, Alex K.-Y.

AU - Chen, Xihan

AU - Xu, Zong-Xiang

PY - 2025

Y1 - 2025

N2 - While self-assembled material based inverted perovskite solar cells have surpassed power conversion efficiencies of 26%, enhancing their performance in large-area configurations remains a significant challenge. In this work, we report a self-assembled material based hole-selective layer 4-(7H-dibenzo[c,g]carbazol-7-yl)phenyl)phosphonic acid, with a π-expanded conjugation. The enhanced intermolecular π–π interactions facilitate the self-assembly of 4-(7H-dibenzo[c,g]carbazol-7-yl)phenyl)phosphonic acid molecules to form an ordered bilayer with a hydrophilic surface, which passivates the buried perovskite interface defect and enables high-quality and large-area perovskite preparation, while simultaneously enhancing interfacial charge extraction and transport. The certified efficiency of 4-(7H-dibenzo[c,g]carbazol-7-yl)phenyl)phosphonic acid based small-area (0.0715 cm2) device is 26.39% with high stability. Furthermore, a certified efficiency of 25.21% is achieved for a 99.12 mm2 large area device. © The Author(s) 2024.

AB - While self-assembled material based inverted perovskite solar cells have surpassed power conversion efficiencies of 26%, enhancing their performance in large-area configurations remains a significant challenge. In this work, we report a self-assembled material based hole-selective layer 4-(7H-dibenzo[c,g]carbazol-7-yl)phenyl)phosphonic acid, with a π-expanded conjugation. The enhanced intermolecular π–π interactions facilitate the self-assembly of 4-(7H-dibenzo[c,g]carbazol-7-yl)phenyl)phosphonic acid molecules to form an ordered bilayer with a hydrophilic surface, which passivates the buried perovskite interface defect and enables high-quality and large-area perovskite preparation, while simultaneously enhancing interfacial charge extraction and transport. The certified efficiency of 4-(7H-dibenzo[c,g]carbazol-7-yl)phenyl)phosphonic acid based small-area (0.0715 cm2) device is 26.39% with high stability. Furthermore, a certified efficiency of 25.21% is achieved for a 99.12 mm2 large area device. © The Author(s) 2024.

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U2 - 10.1038/s41467-024-55523-0

DO - 10.1038/s41467-024-55523-0

M3 - RGC 21 - Publication in refereed journal

SN - 2041-1723

VL - 16

JO - Nature Communications

JF - Nature Communications

M1 - 86

ER -

Self-assembled materials with an ordered hydrophilic bilayer for high performance inverted Perovskite solar cells

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