Fullerene derivative anchored SnO2 for high-performance perovskite solar cells

Kuan Liu; Shuang Chen; Jionghua Wu; Huiyin Zhang; Minchao Qin; Xinhui Lu; Yingfeng Tu; Qingbo Meng; Xiaowei Zhan

doi:10.1039/c8ee02172d

Fullerene derivative anchored SnO₂ for high-performance perovskite solar cells

Kuan Liu, Shuang Chen, Jionghua Wu, Huiyin Zhang, Minchao Qin, Xinhui Lu, Yingfeng Tu, Qingbo Meng, Xiaowei Zhan

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

214 Citations (Scopus)

Abstract

A fullerene derivative, 9-(1-(6-(3,5-bis(hydroxymethyl)phenoxy)-1-hexyl)-1H-1,2,3-triazol-4-yl)-1-nonyl [60]fullerenoacetate (C9), is employed to anchor the surface of a SnO₂ electron transport layer (ETL) in planar heterojunction perovskite solar cells (PSCs). C9 suppresses charge recombination due to efficient passivation of oxygen-vacancy-related defects on the surface of the SnO₂ ETL through the formation of a Lewis adduct between the under-coordinated Sn in SnO₂ and hydroxyl terminal groups in C9. The C9 modifying layer enhances the extraction of photogenerated charge carriers due to the negligible injection barrier and strong electron affinity. C9 can also improve the quality of the perovskite film with enlarged grain size, reduced grain boundary and improved crystallinity. The PSCs based on C9-modified SnO₂ exhibit improved photovoltaic performance with efficiency up to 21.3% with negligible hysteresis, which is superior to the control devices based on bare SnO₂ (20.0%). Moreover, the ambient, photo and electric-field stability of the modified devices is also enhanced.

Original language	English
Pages (from-to)	3463-3471
Number of pages	9
Journal	Energy and Environmental Science
Volume	11
Issue number	12
DOIs	https://doi.org/10.1039/c8ee02172d
Publication status	Published - Dec 2018

ASJC Scopus subject areas

Environmental Chemistry
Renewable Energy, Sustainability and the Environment
Nuclear Energy and Engineering
Pollution

UN SDGs

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

More information

10.1039/c8ee02172d

Cite this

@article{9aeab32240b74a0da1e4bf549a134f3b,

title = "Fullerene derivative anchored SnO2 for high-performance perovskite solar cells",

abstract = "A fullerene derivative, 9-(1-(6-(3,5-bis(hydroxymethyl)phenoxy)-1-hexyl)-1H-1,2,3-triazol-4-yl)-1-nonyl [60]fullerenoacetate (C9), is employed to anchor the surface of a SnO2 electron transport layer (ETL) in planar heterojunction perovskite solar cells (PSCs). C9 suppresses charge recombination due to efficient passivation of oxygen-vacancy-related defects on the surface of the SnO2 ETL through the formation of a Lewis adduct between the under-coordinated Sn in SnO2 and hydroxyl terminal groups in C9. The C9 modifying layer enhances the extraction of photogenerated charge carriers due to the negligible injection barrier and strong electron affinity. C9 can also improve the quality of the perovskite film with enlarged grain size, reduced grain boundary and improved crystallinity. The PSCs based on C9-modified SnO2 exhibit improved photovoltaic performance with efficiency up to 21.3% with negligible hysteresis, which is superior to the control devices based on bare SnO2 (20.0%). Moreover, the ambient, photo and electric-field stability of the modified devices is also enhanced.",

author = "Kuan Liu and Shuang Chen and Jionghua Wu and Huiyin Zhang and Minchao Qin and Xinhui Lu and Yingfeng Tu and Qingbo Meng and Xiaowei Zhan",

note = "Funding Information: We thank the National Natural Science Foundation of China (No. 21673011) for financial support. Publisher Copyright: {\textcopyright} 2018 The Royal Society of Chemistry.",

year = "2018",

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doi = "10.1039/c8ee02172d",

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AU - Liu, Kuan

AU - Chen, Shuang

AU - Wu, Jionghua

AU - Zhang, Huiyin

AU - Qin, Minchao

AU - Lu, Xinhui

AU - Tu, Yingfeng

AU - Meng, Qingbo

AU - Zhan, Xiaowei

PY - 2018/12

Y1 - 2018/12

N2 - A fullerene derivative, 9-(1-(6-(3,5-bis(hydroxymethyl)phenoxy)-1-hexyl)-1H-1,2,3-triazol-4-yl)-1-nonyl [60]fullerenoacetate (C9), is employed to anchor the surface of a SnO2 electron transport layer (ETL) in planar heterojunction perovskite solar cells (PSCs). C9 suppresses charge recombination due to efficient passivation of oxygen-vacancy-related defects on the surface of the SnO2 ETL through the formation of a Lewis adduct between the under-coordinated Sn in SnO2 and hydroxyl terminal groups in C9. The C9 modifying layer enhances the extraction of photogenerated charge carriers due to the negligible injection barrier and strong electron affinity. C9 can also improve the quality of the perovskite film with enlarged grain size, reduced grain boundary and improved crystallinity. The PSCs based on C9-modified SnO2 exhibit improved photovoltaic performance with efficiency up to 21.3% with negligible hysteresis, which is superior to the control devices based on bare SnO2 (20.0%). Moreover, the ambient, photo and electric-field stability of the modified devices is also enhanced.

AB - A fullerene derivative, 9-(1-(6-(3,5-bis(hydroxymethyl)phenoxy)-1-hexyl)-1H-1,2,3-triazol-4-yl)-1-nonyl [60]fullerenoacetate (C9), is employed to anchor the surface of a SnO2 electron transport layer (ETL) in planar heterojunction perovskite solar cells (PSCs). C9 suppresses charge recombination due to efficient passivation of oxygen-vacancy-related defects on the surface of the SnO2 ETL through the formation of a Lewis adduct between the under-coordinated Sn in SnO2 and hydroxyl terminal groups in C9. The C9 modifying layer enhances the extraction of photogenerated charge carriers due to the negligible injection barrier and strong electron affinity. C9 can also improve the quality of the perovskite film with enlarged grain size, reduced grain boundary and improved crystallinity. The PSCs based on C9-modified SnO2 exhibit improved photovoltaic performance with efficiency up to 21.3% with negligible hysteresis, which is superior to the control devices based on bare SnO2 (20.0%). Moreover, the ambient, photo and electric-field stability of the modified devices is also enhanced.

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