Multidentate silane bridging for stable and efficient perovskite–organic tandem solar cells

Dong Zhang; Baoze Liu; Xue Wang; Qi Liu; Danpeng Gao; Xianglang Sun; Xin Wu; Zexin Yu; Chunlei Zhang; Ning Wang; Yan Wang; Nikhil Kalasariya; Francesco Vanin; Weidong Tian; Shuai Li; Jianqiu Gong; Lina Wang; Yang Bai; Shuang Xiao; Bo Li; Martin Stolterfoht; Xiao Cheng Zeng; Shangfeng Yang; Zonglong Zhu

doi:10.1039/d5ee06253e

Multidentate silane bridging for stable and efficient perovskite–organic tandem solar cells

Dong Zhang
, Baoze Liu
, Xue Wang
, Qi Liu
, Danpeng Gao^*
, Xianglang Sun^*
, Xin Wu
, Zexin Yu
, Chunlei Zhang
, Ning Wang
, Yan Wang
, Nikhil Kalasariya
, Francesco Vanin
, Weidong Tian
, Shuai Li
, Jianqiu Gong
, Lina Wang
, Yang Bai
, Shuang Xiao
, Bo Li

Martin Stolterfoht, Xiao Cheng Zeng^*, Shangfeng Yang^*, Zonglong Zhu^*

^*此作品的通讯作者

City University of Hong Kong
University of Science and Technology of China
Chinese University of Hong Kong
Beijing Institute of Technology
Shenzhen Technology University
Central South University
City University of Hong Kong Shenzhen Research Institute

科研成果: 期刊稿件 › 文章 › 同行评审

3 引用（Scopus）

摘要

Perovskite–organic tandem solar cells (POTSCs) offer significant advantages over other perovskite-based tandem architectures owing to their straightforward processing and broad tuneability. However, the interfacial energetics disorder and resulting heterogeneous photoactive phase in wide bandgap perovskite subcells significantly undermine their long-term stability. Here, we develop a multidentate anchoring-bridging strategy that establishes a periodic passivating array that coordinates with dangling Pb²⁺ on the perovskite surface to reduce vacancy-mediated halide migration. The network with fluorinated chains reconfigures the interfacial dielectric landscape, significantly increasing the migration activation barrier for halide vacancies at the perovskite/electron transport layer interface, suppressing ion migration and significantly enchancing longevity. Poly-FPTS-treated tandem devices delivered a power conversion efficiency (PCE) of 26.5%, with a high open-circuit voltage of 2.178 V. A steady-state certified efficiency of 25.1% was achieved in Japan Electrical Safety & Environmental Technology Laboratories (JET), as reported in Solar Cell Efficiency Tables (version 65). Under continuous 1-sun illumination at the maximum power point (ISOS-L-1I protocol), these devices retained 92% of their initial efficiency after 1000 hours, and they exhibited an efficiency loss < 5% after 1056 hours of light–dark cycling (ISOS-LC-1). This work reveals the importance of treating the top perovskite/ETL contact for commercializing perovskite–organic tandem solar cells.

源语言	英语
页（从-至）	1331-1340
页数	10
期刊	Energy and Environmental Science
卷	19
期	4
DOI	https://doi.org/10.1039/d5ee06253e
出版状态	已出版 - 24 2月 2026
已对外发布	是

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Zhang, D., Liu, B., Wang, X., Liu, Q., Gao, D., Sun, X., Wu, X., Yu, Z., Zhang, C., Wang, N., Wang, Y., Kalasariya, N., Vanin, F., Tian, W., Li, S., Gong, J., Wang, L., Bai, Y., Xiao, S., ... Zhu, Z. (2026). Multidentate silane bridging for stable and efficient perovskite–organic tandem solar cells. Energy and Environmental Science, 19(4), 1331-1340. https://doi.org/10.1039/d5ee06253e

@article{bb68497ecd394beb84d6de17f10cfc9d,

title = "Multidentate silane bridging for stable and efficient perovskite{\textendash}organic tandem solar cells",

abstract = "Perovskite{\textendash}organic tandem solar cells (POTSCs) offer significant advantages over other perovskite-based tandem architectures owing to their straightforward processing and broad tuneability. However, the interfacial energetics disorder and resulting heterogeneous photoactive phase in wide bandgap perovskite subcells significantly undermine their long-term stability. Here, we develop a multidentate anchoring-bridging strategy that establishes a periodic passivating array that coordinates with dangling Pb2+ on the perovskite surface to reduce vacancy-mediated halide migration. The network with fluorinated chains reconfigures the interfacial dielectric landscape, significantly increasing the migration activation barrier for halide vacancies at the perovskite/electron transport layer interface, suppressing ion migration and significantly enchancing longevity. Poly-FPTS-treated tandem devices delivered a power conversion efficiency (PCE) of 26.5\%, with a high open-circuit voltage of 2.178 V. A steady-state certified efficiency of 25.1\% was achieved in Japan Electrical Safety \& Environmental Technology Laboratories (JET), as reported in Solar Cell Efficiency Tables (version 65). Under continuous 1-sun illumination at the maximum power point (ISOS-L-1I protocol), these devices retained 92\% of their initial efficiency after 1000 hours, and they exhibited an efficiency loss < 5\% after 1056 hours of light{\textendash}dark cycling (ISOS-LC-1). This work reveals the importance of treating the top perovskite/ETL contact for commercializing perovskite{\textendash}organic tandem solar cells.",

author = "Dong Zhang and Baoze Liu and Xue Wang and Qi Liu and Danpeng Gao and Xianglang Sun and Xin Wu and Zexin Yu and Chunlei Zhang and Ning Wang and Yan Wang and Nikhil Kalasariya and Francesco Vanin and Weidong Tian and Shuai Li and Jianqiu Gong and Lina Wang and Yang Bai and Shuang Xiao and Bo Li and Martin Stolterfoht and Zeng, \{Xiao Cheng\} and Shangfeng Yang and Zonglong Zhu",

note = "Publisher Copyright: This journal is {\textcopyright} The Royal Society of Chemistry, 2026",

year = "2026",

month = feb,

day = "24",

doi = "10.1039/d5ee06253e",

language = "English",

volume = "19",

pages = "1331--1340",

journal = "Energy and Environmental Science",

issn = "1754-5692",

publisher = "Royal Society of Chemistry",

number = "4",

}

Zhang, D, Liu, B, Wang, X, Liu, Q, Gao, D, Sun, X, Wu, X, Yu, Z, Zhang, C, Wang, N, Wang, Y, Kalasariya, N, Vanin, F, Tian, W, Li, S, Gong, J, Wang, L, Bai, Y, Xiao, S, Li, B, Stolterfoht, M, Zeng, XC, Yang, S & Zhu, Z 2026, 'Multidentate silane bridging for stable and efficient perovskite–organic tandem solar cells', Energy and Environmental Science, 卷 19, 号码 4, 页码 1331-1340. https://doi.org/10.1039/d5ee06253e

TY - JOUR

T1 - Multidentate silane bridging for stable and efficient perovskite–organic tandem solar cells

AU - Zhang, Dong

AU - Liu, Baoze

AU - Wang, Xue

AU - Liu, Qi

AU - Gao, Danpeng

AU - Sun, Xianglang

AU - Wu, Xin

AU - Yu, Zexin

AU - Zhang, Chunlei

AU - Wang, Ning

AU - Wang, Yan

AU - Kalasariya, Nikhil

AU - Vanin, Francesco

AU - Tian, Weidong

AU - Li, Shuai

AU - Gong, Jianqiu

AU - Wang, Lina

AU - Bai, Yang

AU - Xiao, Shuang

AU - Li, Bo

AU - Stolterfoht, Martin

AU - Zeng, Xiao Cheng

AU - Yang, Shangfeng

AU - Zhu, Zonglong

PY - 2026/2/24

Y1 - 2026/2/24

N2 - Perovskite–organic tandem solar cells (POTSCs) offer significant advantages over other perovskite-based tandem architectures owing to their straightforward processing and broad tuneability. However, the interfacial energetics disorder and resulting heterogeneous photoactive phase in wide bandgap perovskite subcells significantly undermine their long-term stability. Here, we develop a multidentate anchoring-bridging strategy that establishes a periodic passivating array that coordinates with dangling Pb2+ on the perovskite surface to reduce vacancy-mediated halide migration. The network with fluorinated chains reconfigures the interfacial dielectric landscape, significantly increasing the migration activation barrier for halide vacancies at the perovskite/electron transport layer interface, suppressing ion migration and significantly enchancing longevity. Poly-FPTS-treated tandem devices delivered a power conversion efficiency (PCE) of 26.5%, with a high open-circuit voltage of 2.178 V. A steady-state certified efficiency of 25.1% was achieved in Japan Electrical Safety & Environmental Technology Laboratories (JET), as reported in Solar Cell Efficiency Tables (version 65). Under continuous 1-sun illumination at the maximum power point (ISOS-L-1I protocol), these devices retained 92% of their initial efficiency after 1000 hours, and they exhibited an efficiency loss < 5% after 1056 hours of light–dark cycling (ISOS-LC-1). This work reveals the importance of treating the top perovskite/ETL contact for commercializing perovskite–organic tandem solar cells.

AB - Perovskite–organic tandem solar cells (POTSCs) offer significant advantages over other perovskite-based tandem architectures owing to their straightforward processing and broad tuneability. However, the interfacial energetics disorder and resulting heterogeneous photoactive phase in wide bandgap perovskite subcells significantly undermine their long-term stability. Here, we develop a multidentate anchoring-bridging strategy that establishes a periodic passivating array that coordinates with dangling Pb2+ on the perovskite surface to reduce vacancy-mediated halide migration. The network with fluorinated chains reconfigures the interfacial dielectric landscape, significantly increasing the migration activation barrier for halide vacancies at the perovskite/electron transport layer interface, suppressing ion migration and significantly enchancing longevity. Poly-FPTS-treated tandem devices delivered a power conversion efficiency (PCE) of 26.5%, with a high open-circuit voltage of 2.178 V. A steady-state certified efficiency of 25.1% was achieved in Japan Electrical Safety & Environmental Technology Laboratories (JET), as reported in Solar Cell Efficiency Tables (version 65). Under continuous 1-sun illumination at the maximum power point (ISOS-L-1I protocol), these devices retained 92% of their initial efficiency after 1000 hours, and they exhibited an efficiency loss < 5% after 1056 hours of light–dark cycling (ISOS-LC-1). This work reveals the importance of treating the top perovskite/ETL contact for commercializing perovskite–organic tandem solar cells.

UR - https://www.scopus.com/pages/publications/105029179905

U2 - 10.1039/d5ee06253e

DO - 10.1039/d5ee06253e

M3 - Article

AN - SCOPUS:105029179905

SN - 1754-5692

VL - 19

SP - 1331

EP - 1340

JO - Energy and Environmental Science

JF - Energy and Environmental Science

IS - 4

ER -

Multidentate silane bridging for stable and efficient perovskite–organic tandem solar cells

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