Conjugated Molecules “Bridge”: Functional Ligand toward Highly Efficient and Long-Term Stable Perovskite Solar Cell

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Conjugated Molecules “Bridge” : Functional Ligand toward Highly Efficient and Long-Term Stable Perovskite Solar Cell. / Dong, Hua; Xi, Jun; Zuo, Lijian; Li, Jingrui; Yang, Yingguo; Wang, Dongdong; Yu, Yue; Ma, Lin; Ran, Chenxin; Gao, Weiyin; Jiao, Bo; Xu, Jie; Lei, Ting; Wei, Feijie; Yuan, Fang; Zhang, Lin; Shi, Yifei; Hou, Xun; Wu, Zhaoxin.

In: Advanced Functional Materials, Vol. 29, No. 17, 1808119, 25.04.2019, p. 1-11.

Research output: Contribution to journalArticleScientificpeer-review

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Dong, H, Xi, J, Zuo, L, Li, J, Yang, Y, Wang, D, Yu, Y, Ma, L, Ran, C, Gao, W, Jiao, B, Xu, J, Lei, T, Wei, F, Yuan, F, Zhang, L, Shi, Y, Hou, X & Wu, Z 2019, 'Conjugated Molecules “Bridge”: Functional Ligand toward Highly Efficient and Long-Term Stable Perovskite Solar Cell', Advanced Functional Materials, vol. 29, no. 17, 1808119, pp. 1-11. https://doi.org/10.1002/adfm.201808119

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Dong, Hua ; Xi, Jun ; Zuo, Lijian ; Li, Jingrui ; Yang, Yingguo ; Wang, Dongdong ; Yu, Yue ; Ma, Lin ; Ran, Chenxin ; Gao, Weiyin ; Jiao, Bo ; Xu, Jie ; Lei, Ting ; Wei, Feijie ; Yuan, Fang ; Zhang, Lin ; Shi, Yifei ; Hou, Xun ; Wu, Zhaoxin. / Conjugated Molecules “Bridge” : Functional Ligand toward Highly Efficient and Long-Term Stable Perovskite Solar Cell. In: Advanced Functional Materials. 2019 ; Vol. 29, No. 17. pp. 1-11.

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@article{323605a31f704ae09e129700dafbafc3,
title = "Conjugated Molecules “Bridge”: Functional Ligand toward Highly Efficient and Long-Term Stable Perovskite Solar Cell",
abstract = "Interfacial ligand passivation engineering has recently been recognized as a promising avenue, contributing simultaneously to the optoelectronic characteristics and moisture/operation tolerance of perovskite solar cells. To further achieve a win-win situation of both performance and stability, an innovative conjugated aniline modifier (3-phenyl-2-propen-1-amine; PPEA) is explored to moderately tailor organolead halide perovskites films. Here, the conjugated PPEA presents both “quasi-coplanar” rigid geometrical configuration and distinct electron delocalization characteristics. After a moderate treatment, a stronger dipole capping layer can be formed at the perovskite/transporting interface to achieve favorable banding alignment, thus enlarging the built-in potential and promoting charge extraction. Meanwhile, a conjugated cation coordinated to the surface of the perovskite grains/units can form preferably ordered overlapping, not only passivating the surface defects but also providing a fast path for charge exchange. Benefiting from this, a ≈21{\%} efficiency of the PPEA-modified solar cell can be obtained, accompanied by long-term stability (maintaining 90.2{\%} of initial power conversion efficiency after 1000 h testing, 25 °C, and 40 ± 10 humidity). This innovative conjugated molecule “bridge” can also perform on a larger scale, with a performance of 18.43{\%} at an area of 1.96 cm2.",
keywords = "conjugation, delocalization, interfacial dipole, perovskite, solar cells",
author = "Hua Dong and Jun Xi and Lijian Zuo and Jingrui Li and Yingguo Yang and Dongdong Wang and Yue Yu and Lin Ma and Chenxin Ran and Weiyin Gao and Bo Jiao and Jie Xu and Ting Lei and Feijie Wei and Fang Yuan and Lin Zhang and Yifei Shi and Xun Hou and Zhaoxin Wu",
year = "2019",
month = "4",
day = "25",
doi = "10.1002/adfm.201808119",
language = "English",
volume = "29",
pages = "1--11",
journal = "Advanced Functional Materials",
issn = "1616-301X",
number = "17",

}

RIS - Download

TY - JOUR

T1 - Conjugated Molecules “Bridge”

T2 - Functional Ligand toward Highly Efficient and Long-Term Stable Perovskite Solar Cell

AU - Dong, Hua

AU - Xi, Jun

AU - Zuo, Lijian

AU - Li, Jingrui

AU - Yang, Yingguo

AU - Wang, Dongdong

AU - Yu, Yue

AU - Ma, Lin

AU - Ran, Chenxin

AU - Gao, Weiyin

AU - Jiao, Bo

AU - Xu, Jie

AU - Lei, Ting

AU - Wei, Feijie

AU - Yuan, Fang

AU - Zhang, Lin

AU - Shi, Yifei

AU - Hou, Xun

AU - Wu, Zhaoxin

PY - 2019/4/25

Y1 - 2019/4/25

N2 - Interfacial ligand passivation engineering has recently been recognized as a promising avenue, contributing simultaneously to the optoelectronic characteristics and moisture/operation tolerance of perovskite solar cells. To further achieve a win-win situation of both performance and stability, an innovative conjugated aniline modifier (3-phenyl-2-propen-1-amine; PPEA) is explored to moderately tailor organolead halide perovskites films. Here, the conjugated PPEA presents both “quasi-coplanar” rigid geometrical configuration and distinct electron delocalization characteristics. After a moderate treatment, a stronger dipole capping layer can be formed at the perovskite/transporting interface to achieve favorable banding alignment, thus enlarging the built-in potential and promoting charge extraction. Meanwhile, a conjugated cation coordinated to the surface of the perovskite grains/units can form preferably ordered overlapping, not only passivating the surface defects but also providing a fast path for charge exchange. Benefiting from this, a ≈21% efficiency of the PPEA-modified solar cell can be obtained, accompanied by long-term stability (maintaining 90.2% of initial power conversion efficiency after 1000 h testing, 25 °C, and 40 ± 10 humidity). This innovative conjugated molecule “bridge” can also perform on a larger scale, with a performance of 18.43% at an area of 1.96 cm2.

AB - Interfacial ligand passivation engineering has recently been recognized as a promising avenue, contributing simultaneously to the optoelectronic characteristics and moisture/operation tolerance of perovskite solar cells. To further achieve a win-win situation of both performance and stability, an innovative conjugated aniline modifier (3-phenyl-2-propen-1-amine; PPEA) is explored to moderately tailor organolead halide perovskites films. Here, the conjugated PPEA presents both “quasi-coplanar” rigid geometrical configuration and distinct electron delocalization characteristics. After a moderate treatment, a stronger dipole capping layer can be formed at the perovskite/transporting interface to achieve favorable banding alignment, thus enlarging the built-in potential and promoting charge extraction. Meanwhile, a conjugated cation coordinated to the surface of the perovskite grains/units can form preferably ordered overlapping, not only passivating the surface defects but also providing a fast path for charge exchange. Benefiting from this, a ≈21% efficiency of the PPEA-modified solar cell can be obtained, accompanied by long-term stability (maintaining 90.2% of initial power conversion efficiency after 1000 h testing, 25 °C, and 40 ± 10 humidity). This innovative conjugated molecule “bridge” can also perform on a larger scale, with a performance of 18.43% at an area of 1.96 cm2.

KW - conjugation

KW - delocalization

KW - interfacial dipole

KW - perovskite

KW - solar cells

UR - http://www.scopus.com/inward/record.url?scp=85061076335&partnerID=8YFLogxK

U2 - 10.1002/adfm.201808119

DO - 10.1002/adfm.201808119

M3 - Article

VL - 29

SP - 1

EP - 11

JO - Advanced Functional Materials

JF - Advanced Functional Materials

SN - 1616-301X

IS - 17

M1 - 1808119

ER -

ID: 32112459