Fluorinated fused nonacyclic interfacial materials for efficient and stable perovskite solar cells

Kuan Liu; Shuixing Dai; Fanqi Meng; Jiangjian Shi; Yusheng Li; Jionghua Wu; Qingbo Meng; Xiaowei Zhan

doi:10.1039/c7ta06923e

Fluorinated fused nonacyclic interfacial materials for efficient and stable perovskite solar cells

Kuan Liu, Shuixing Dai, Fanqi Meng, Jiangjian Shi, Yusheng Li, Jionghua Wu, Qingbo Meng, Xiaowei Zhan

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

58 Citations (Scopus)

Abstract

Three fused-ring n-type semiconductors based on 6,6,12,12-tetrakis(4-hexylphenyl)-indacenobis(dithieno[3,2-b;2,3-d]thiophene) end-capped with 1,1-dicyanomethylene-3-indanone substituted by different numbers of fluorine atoms (INIC series) are employed as interfacial materials to modify the surface of the perovskite film in inverted planar perovskite solar cells (PSCs). Due to fast interfacial charge extraction and efficient trap passivation, PSCs based on INIC series exhibit a maximum power conversion efficiency of 19.3% without any hysteresis, which is superior to control devices without INIC series (16.6%). Moreover, the strong water-resistance ability of fluorinated INIC significantly enhances the ambient stability of the PSCs. The effects of fluorine atom number on the device performance are discussed.

Original language	English
Pages (from-to)	21414-21421
Number of pages	8
Journal	Journal of Materials Chemistry A
Volume	5
Issue number	40
DOIs	https://doi.org/10.1039/c7ta06923e
Publication status	Published - Sept 2017

ASJC Scopus subject areas

General Chemistry
Renewable Energy, Sustainability and the Environment
General Materials Science

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1039/c7ta06923e

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title = "Fluorinated fused nonacyclic interfacial materials for efficient and stable perovskite solar cells",

abstract = "Three fused-ring n-type semiconductors based on 6,6,12,12-tetrakis(4-hexylphenyl)-indacenobis(dithieno[3,2-b;2,3-d]thiophene) end-capped with 1,1-dicyanomethylene-3-indanone substituted by different numbers of fluorine atoms (INIC series) are employed as interfacial materials to modify the surface of the perovskite film in inverted planar perovskite solar cells (PSCs). Due to fast interfacial charge extraction and efficient trap passivation, PSCs based on INIC series exhibit a maximum power conversion efficiency of 19.3% without any hysteresis, which is superior to control devices without INIC series (16.6%). Moreover, the strong water-resistance ability of fluorinated INIC significantly enhances the ambient stability of the PSCs. The effects of fluorine atom number on the device performance are discussed.",

author = "Kuan Liu and Shuixing Dai and Fanqi Meng and Jiangjian Shi and Yusheng Li and Jionghua Wu and Qingbo Meng and Xiaowei Zhan",

note = "Funding Information: We thank the National Natural Science Foundation of China (No. 21673011) for nancial support. Publisher Copyright: {\textcopyright} 2017 The Royal Society of Chemistry.",

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TY - JOUR

T1 - Fluorinated fused nonacyclic interfacial materials for efficient and stable perovskite solar cells

AU - Liu, Kuan

AU - Dai, Shuixing

AU - Meng, Fanqi

AU - Shi, Jiangjian

AU - Li, Yusheng

AU - Wu, Jionghua

AU - Meng, Qingbo

AU - Zhan, Xiaowei

PY - 2017/9

Y1 - 2017/9

N2 - Three fused-ring n-type semiconductors based on 6,6,12,12-tetrakis(4-hexylphenyl)-indacenobis(dithieno[3,2-b;2,3-d]thiophene) end-capped with 1,1-dicyanomethylene-3-indanone substituted by different numbers of fluorine atoms (INIC series) are employed as interfacial materials to modify the surface of the perovskite film in inverted planar perovskite solar cells (PSCs). Due to fast interfacial charge extraction and efficient trap passivation, PSCs based on INIC series exhibit a maximum power conversion efficiency of 19.3% without any hysteresis, which is superior to control devices without INIC series (16.6%). Moreover, the strong water-resistance ability of fluorinated INIC significantly enhances the ambient stability of the PSCs. The effects of fluorine atom number on the device performance are discussed.

AB - Three fused-ring n-type semiconductors based on 6,6,12,12-tetrakis(4-hexylphenyl)-indacenobis(dithieno[3,2-b;2,3-d]thiophene) end-capped with 1,1-dicyanomethylene-3-indanone substituted by different numbers of fluorine atoms (INIC series) are employed as interfacial materials to modify the surface of the perovskite film in inverted planar perovskite solar cells (PSCs). Due to fast interfacial charge extraction and efficient trap passivation, PSCs based on INIC series exhibit a maximum power conversion efficiency of 19.3% without any hysteresis, which is superior to control devices without INIC series (16.6%). Moreover, the strong water-resistance ability of fluorinated INIC significantly enhances the ambient stability of the PSCs. The effects of fluorine atom number on the device performance are discussed.

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U2 - 10.1039/c7ta06923e

DO - 10.1039/c7ta06923e

M3 - Journal article

AN - SCOPUS:85031680746

SN - 2050-7488

VL - 5

SP - 21414

EP - 21421

JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

IS - 40

ER -

Fluorinated fused nonacyclic interfacial materials for efficient and stable perovskite solar cells

Abstract

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