Efficient Inverted CsPbI3 Solar Cells with Pb─S Contained Organosulfide-Halide Perovskite Heterojunction

Chunyan Lu; Xuemin Guo; Wenxiao Zhang; Haobo Yuan; Acan Liu; Hui Yang; Wen Li; Zhengbo Cui; Yu Yang Hu; Xiaodong Li; Junfeng Fang

doi:10.1002/adfm.202403563

Efficient Inverted CsPbI₃ Solar Cells with Pb─S Contained Organosulfide-Halide Perovskite Heterojunction

Chunyan Lu, Xuemin Guo, Wenxiao Zhang, Haobo Yuan, Acan Liu, Hui Yang, Wen Li, Zhengbo Cui, Yu Yang Hu, Xiaodong Li^*, Junfeng Fang^*

^*Corresponding author for this work

East China Normal University

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

Here robust Pb-S covalency is successfully incorporated into CsPbI₃ heterojunction by introducing a new zwitterionic organosulfide-halide perovskite on top of CsPbI₃. Cysteamine (CYS: ⁺NH₃(CH₂)₂S⁻) will react with PbCl₂ and form a new 3D perovskite with much shallower fermi level on CsPbI₃ surface, constructing an efficient CsPbI₃/[CYS][PbCl₂] heterojunction. As a result, interfacial energy loss can be significantly inhibited and device open-circuit voltage (Voc) is increased to over 1.20 V with champion efficiency of 20.38% in inverted CsPbI₃ perovskite solar cells (PSCs). Besides, the intrinsic moisture and phase stability of [CYS][PbCl₂] perovskite will effectively stabilize the CsPbI₃ beneath owing to its robust Pb-S covalency. PSCs with [CYS][PbCl₂] exhibit significantly improved stability, whether in moist air or under continuous maximum power point (MPP) tracking.

Original language	English
Article number	2403563
Journal	Advanced Functional Materials
Volume	34
Issue number	39
DOIs	https://doi.org/10.1002/adfm.202403563
State	Published - 25 Sep 2024
Externally published	Yes

Keywords

CsPbI
Pb-S covalency
organosulfide perovskite
perovskite heterojunction

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10.1002/adfm.202403563

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@article{6aee8684a0a2403788fe415e65f6c30c,

title = "Efficient Inverted CsPbI3 Solar Cells with Pb─S Contained Organosulfide-Halide Perovskite Heterojunction",

abstract = "Here robust Pb-S covalency is successfully incorporated into CsPbI3 heterojunction by introducing a new zwitterionic organosulfide-halide perovskite on top of CsPbI3. Cysteamine (CYS: +NH3(CH2)2S−) will react with PbCl2 and form a new 3D perovskite with much shallower fermi level on CsPbI3 surface, constructing an efficient CsPbI3/[CYS][PbCl2] heterojunction. As a result, interfacial energy loss can be significantly inhibited and device open-circuit voltage (Voc) is increased to over 1.20 V with champion efficiency of 20.38\% in inverted CsPbI3 perovskite solar cells (PSCs). Besides, the intrinsic moisture and phase stability of [CYS][PbCl2] perovskite will effectively stabilize the CsPbI3 beneath owing to its robust Pb-S covalency. PSCs with [CYS][PbCl2] exhibit significantly improved stability, whether in moist air or under continuous maximum power point (MPP) tracking.",

keywords = "CsPbI, Pb-S covalency, organosulfide perovskite, perovskite heterojunction",

author = "Chunyan Lu and Xuemin Guo and Wenxiao Zhang and Haobo Yuan and Acan Liu and Hui Yang and Wen Li and Zhengbo Cui and Hu, \{Yu Yang\} and Xiaodong Li and Junfeng Fang",

note = "Publisher Copyright: {\textcopyright} 2024 Wiley-VCH GmbH.",

year = "2024",

month = sep,

day = "25",

doi = "10.1002/adfm.202403563",

language = "英语",

volume = "34",

journal = "Advanced Functional Materials",

issn = "1616-301X",

publisher = "Wiley-VCH Verlag",

number = "39",

}

TY - JOUR

T1 - Efficient Inverted CsPbI3 Solar Cells with Pb─S Contained Organosulfide-Halide Perovskite Heterojunction

AU - Lu, Chunyan

AU - Guo, Xuemin

AU - Zhang, Wenxiao

AU - Yuan, Haobo

AU - Liu, Acan

AU - Yang, Hui

AU - Li, Wen

AU - Cui, Zhengbo

AU - Hu, Yu Yang

AU - Li, Xiaodong

AU - Fang, Junfeng

PY - 2024/9/25

Y1 - 2024/9/25

N2 - Here robust Pb-S covalency is successfully incorporated into CsPbI3 heterojunction by introducing a new zwitterionic organosulfide-halide perovskite on top of CsPbI3. Cysteamine (CYS: +NH3(CH2)2S−) will react with PbCl2 and form a new 3D perovskite with much shallower fermi level on CsPbI3 surface, constructing an efficient CsPbI3/[CYS][PbCl2] heterojunction. As a result, interfacial energy loss can be significantly inhibited and device open-circuit voltage (Voc) is increased to over 1.20 V with champion efficiency of 20.38% in inverted CsPbI3 perovskite solar cells (PSCs). Besides, the intrinsic moisture and phase stability of [CYS][PbCl2] perovskite will effectively stabilize the CsPbI3 beneath owing to its robust Pb-S covalency. PSCs with [CYS][PbCl2] exhibit significantly improved stability, whether in moist air or under continuous maximum power point (MPP) tracking.

AB - Here robust Pb-S covalency is successfully incorporated into CsPbI3 heterojunction by introducing a new zwitterionic organosulfide-halide perovskite on top of CsPbI3. Cysteamine (CYS: +NH3(CH2)2S−) will react with PbCl2 and form a new 3D perovskite with much shallower fermi level on CsPbI3 surface, constructing an efficient CsPbI3/[CYS][PbCl2] heterojunction. As a result, interfacial energy loss can be significantly inhibited and device open-circuit voltage (Voc) is increased to over 1.20 V with champion efficiency of 20.38% in inverted CsPbI3 perovskite solar cells (PSCs). Besides, the intrinsic moisture and phase stability of [CYS][PbCl2] perovskite will effectively stabilize the CsPbI3 beneath owing to its robust Pb-S covalency. PSCs with [CYS][PbCl2] exhibit significantly improved stability, whether in moist air or under continuous maximum power point (MPP) tracking.

KW - CsPbI

KW - Pb-S covalency

KW - organosulfide perovskite

KW - perovskite heterojunction

UR - https://www.scopus.com/pages/publications/85194572232

U2 - 10.1002/adfm.202403563

DO - 10.1002/adfm.202403563

M3 - 文章

AN - SCOPUS:85194572232

SN - 1616-301X

VL - 34

JO - Advanced Functional Materials

JF - Advanced Functional Materials

IS - 39

M1 - 2403563

ER -

Efficient Inverted CsPbI₃ Solar Cells with Pb─S Contained Organosulfide-Halide Perovskite Heterojunction

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