Low-Dimensional Ligand-Driven Design of 2D/3D Perovskite Heterojunctions: Achieving Mitigated Nonradiative Recombination and Robust Stability for Next-Generation Solar Cells

Xueru Liu; Xianglong Sun; Ge Chen; Jing Yang; Shiheng Wang; Jian Cheng; Yunlong Gan; Qiqi Wang; Pengwei Li; Gang Li; Yanlin Song; Yiqiang Zhang

doi:10.1021/acs.nanolett.5c01455

Low-Dimensional Ligand-Driven Design of 2D/3D Perovskite Heterojunctions: Achieving Mitigated Nonradiative Recombination and Robust Stability for Next-Generation Solar Cells

Xueru Liu
, Xianglong Sun
, Ge Chen
, Jing Yang
, Shiheng Wang
, Jian Cheng
, Yunlong Gan
, Qiqi Wang
, Pengwei Li
, Gang Li
, Yanlin Song
, Yiqiang Zhang

Research output: Journal article publication › Journal article › Academic research › peer-review

2 Citations (Scopus)

Abstract

Achieving efficient and stable perovskite solar cells (PSCs) is challenging due to nonradiative recombination, ion migration, and film instability. This study designs low-dimensional (LD) ligands─benzimidazole (BIZ), 1H-benzimidazole, 6-methyl-, (6-MeBIm), and 1H-benzimidazole, 6-(trifluoromethyl)-, (6-TFBIm)─to construct LD/3D perovskite heterojunctions. Compared with BIZ and 6-MeBIm (constructing 1D/3D perovskite heterojunction), the 2D/3D perovskite heterojunction constructed by 6-TFBIm successfully passivated different defects, resulting in a significant reduction in nonradiative recombination and improved carrier transport, leading to a power conversion efficiency (PCE) of 25.25%, outperforming the control devices (PCE: 22.97%). The 2D/3D PSCs exhibit superior humidity and thermal stability, maintaining structural integrity under harsh conditions. These results underscore the role of tailored LD ligands in optimizing perovskite film quality, charge transport, and stability, paving the way for high-performance and durable PSCs.

Original language	English
Pages (from-to)	7943-7951
Number of pages	9
Journal	Nano Letters
Volume	25
Issue number	19
DOIs	https://doi.org/10.1021/acs.nanolett.5c01455
Publication status	Published - May 2025

Keywords

2D/3D perovskite
carrier transport
low-dimensional ligand
nonradiative recombination

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

More information

10.1021/acs.nanolett.5c01455

Cite this

Liu, X., Sun, X., Chen, G., Yang, J., Wang, S., Cheng, J., Gan, Y., Wang, Q., Li, P., Li, G., Song, Y., & Zhang, Y. (2025). Low-Dimensional Ligand-Driven Design of 2D/3D Perovskite Heterojunctions: Achieving Mitigated Nonradiative Recombination and Robust Stability for Next-Generation Solar Cells. Nano Letters, 25(19), 7943-7951. https://doi.org/10.1021/acs.nanolett.5c01455

@article{375704b6b3574ef3b7c1bc481f786d5d,

title = "Low-Dimensional Ligand-Driven Design of 2D/3D Perovskite Heterojunctions: Achieving Mitigated Nonradiative Recombination and Robust Stability for Next-Generation Solar Cells",

abstract = "Achieving efficient and stable perovskite solar cells (PSCs) is challenging due to nonradiative recombination, ion migration, and film instability. This study designs low-dimensional (LD) ligands─benzimidazole (BIZ), 1H-benzimidazole, 6-methyl-, (6-MeBIm), and 1H-benzimidazole, 6-(trifluoromethyl)-, (6-TFBIm)─to construct LD/3D perovskite heterojunctions. Compared with BIZ and 6-MeBIm (constructing 1D/3D perovskite heterojunction), the 2D/3D perovskite heterojunction constructed by 6-TFBIm successfully passivated different defects, resulting in a significant reduction in nonradiative recombination and improved carrier transport, leading to a power conversion efficiency (PCE) of 25.25\%, outperforming the control devices (PCE: 22.97\%). The 2D/3D PSCs exhibit superior humidity and thermal stability, maintaining structural integrity under harsh conditions. These results underscore the role of tailored LD ligands in optimizing perovskite film quality, charge transport, and stability, paving the way for high-performance and durable PSCs.",

keywords = "2D/3D perovskite, carrier transport, low-dimensional ligand, nonradiative recombination",

author = "Xueru Liu and Xianglong Sun and Ge Chen and Jing Yang and Shiheng Wang and Jian Cheng and Yunlong Gan and Qiqi Wang and Pengwei Li and Gang Li and Yanlin Song and Yiqiang Zhang",

note = "Publisher Copyright: {\textcopyright} 2025 American Chemical Society.",

year = "2025",

month = may,

doi = "10.1021/acs.nanolett.5c01455",

language = "English",

volume = "25",

pages = "7943--7951",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "19",

}

Liu, X, Sun, X, Chen, G, Yang, J, Wang, S, Cheng, J, Gan, Y, Wang, Q, Li, P, Li, G, Song, Y & Zhang, Y 2025, 'Low-Dimensional Ligand-Driven Design of 2D/3D Perovskite Heterojunctions: Achieving Mitigated Nonradiative Recombination and Robust Stability for Next-Generation Solar Cells', Nano Letters, vol. 25, no. 19, pp. 7943-7951. https://doi.org/10.1021/acs.nanolett.5c01455

Low-Dimensional Ligand-Driven Design of 2D/3D Perovskite Heterojunctions: Achieving Mitigated Nonradiative Recombination and Robust Stability for Next-Generation Solar Cells. / Liu, Xueru; Sun, Xianglong; Chen, Ge et al.
In: Nano Letters, Vol. 25, No. 19, 05.2025, p. 7943-7951.

Research output: Journal article publication › Journal article › Academic research › peer-review

TY - JOUR

T1 - Low-Dimensional Ligand-Driven Design of 2D/3D Perovskite Heterojunctions: Achieving Mitigated Nonradiative Recombination and Robust Stability for Next-Generation Solar Cells

AU - Liu, Xueru

AU - Sun, Xianglong

AU - Chen, Ge

AU - Yang, Jing

AU - Wang, Shiheng

AU - Cheng, Jian

AU - Gan, Yunlong

AU - Wang, Qiqi

AU - Li, Pengwei

AU - Li, Gang

AU - Song, Yanlin

AU - Zhang, Yiqiang

PY - 2025/5

Y1 - 2025/5

N2 - Achieving efficient and stable perovskite solar cells (PSCs) is challenging due to nonradiative recombination, ion migration, and film instability. This study designs low-dimensional (LD) ligands─benzimidazole (BIZ), 1H-benzimidazole, 6-methyl-, (6-MeBIm), and 1H-benzimidazole, 6-(trifluoromethyl)-, (6-TFBIm)─to construct LD/3D perovskite heterojunctions. Compared with BIZ and 6-MeBIm (constructing 1D/3D perovskite heterojunction), the 2D/3D perovskite heterojunction constructed by 6-TFBIm successfully passivated different defects, resulting in a significant reduction in nonradiative recombination and improved carrier transport, leading to a power conversion efficiency (PCE) of 25.25%, outperforming the control devices (PCE: 22.97%). The 2D/3D PSCs exhibit superior humidity and thermal stability, maintaining structural integrity under harsh conditions. These results underscore the role of tailored LD ligands in optimizing perovskite film quality, charge transport, and stability, paving the way for high-performance and durable PSCs.

AB - Achieving efficient and stable perovskite solar cells (PSCs) is challenging due to nonradiative recombination, ion migration, and film instability. This study designs low-dimensional (LD) ligands─benzimidazole (BIZ), 1H-benzimidazole, 6-methyl-, (6-MeBIm), and 1H-benzimidazole, 6-(trifluoromethyl)-, (6-TFBIm)─to construct LD/3D perovskite heterojunctions. Compared with BIZ and 6-MeBIm (constructing 1D/3D perovskite heterojunction), the 2D/3D perovskite heterojunction constructed by 6-TFBIm successfully passivated different defects, resulting in a significant reduction in nonradiative recombination and improved carrier transport, leading to a power conversion efficiency (PCE) of 25.25%, outperforming the control devices (PCE: 22.97%). The 2D/3D PSCs exhibit superior humidity and thermal stability, maintaining structural integrity under harsh conditions. These results underscore the role of tailored LD ligands in optimizing perovskite film quality, charge transport, and stability, paving the way for high-performance and durable PSCs.

KW - 2D/3D perovskite

KW - carrier transport

KW - low-dimensional ligand

KW - nonradiative recombination

UR - https://www.scopus.com/pages/publications/105004594298

U2 - 10.1021/acs.nanolett.5c01455

DO - 10.1021/acs.nanolett.5c01455

M3 - Journal article

C2 - 40321065

AN - SCOPUS:105004594298

SN - 1530-6984

VL - 25

SP - 7943

EP - 7951

JO - Nano Letters

JF - Nano Letters

IS - 19

ER -

Low-Dimensional Ligand-Driven Design of 2D/3D Perovskite Heterojunctions: Achieving Mitigated Nonradiative Recombination and Robust Stability for Next-Generation Solar Cells

Abstract

Keywords

ASJC Scopus subject areas

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