The donor-dependent methoxy effects on the performance of hole-transporting materials for perovskite solar cells

Mengyuan Li; Jinhua Wu; Guoguo Wang; Bingxue Wu; Zhe Sun; Song Xue; Qiquan Qiao; Mao Liang

doi:10.1016/j.jechem.2019.11.017

The donor-dependent methoxy effects on the performance of hole-transporting materials for perovskite solar cells

Mengyuan Li, Jinhua Wu, Guoguo Wang, Bingxue Wu, Zhe Sun, Song Xue, Qiquan Qiao, Mao Liang

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

32 Scopus citations

Abstract

In this work, a comprehensive study on the deliberate molecular design and modifications of electron donors is carried out to elucidate correlations between the methoxy effects and donor configuration of hole-transporting materials (HTMs). Our initial findings demonstrate the donor-dependent methoxy effects. Photovoltaic performance of the HTM with twisted donor highly depends on the methoxy substituent. In contrast, efficiency's reliance on methoxy is insignificant for the HTM with planar donor. The HTM (M123) featuring the methoxy‑substituted carbazole shows a decent power conversion efficiency of 19.33% due to synergistic effects from both planar structure and methoxy. This work gives a guideline to access HTMs reaching both high-performance and good stability.

Original language	English (US)
Pages (from-to)	10-17
Number of pages	8
Journal	Journal of Energy Chemistry
Volume	47
DOIs	https://doi.org/10.1016/j.jechem.2019.11.017
State	Published - Aug 2020
Externally published	Yes

Keywords

Donor configuration
Hole-transporting materials
Methoxy effect
Perovskite solar cells

ASJC Scopus subject areas

Fuel Technology
Energy Engineering and Power Technology
Energy (miscellaneous)
Electrochemistry

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10.1016/j.jechem.2019.11.017

Cite this

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title = "The donor-dependent methoxy effects on the performance of hole-transporting materials for perovskite solar cells",

abstract = "In this work, a comprehensive study on the deliberate molecular design and modifications of electron donors is carried out to elucidate correlations between the methoxy effects and donor configuration of hole-transporting materials (HTMs). Our initial findings demonstrate the donor-dependent methoxy effects. Photovoltaic performance of the HTM with twisted donor highly depends on the methoxy substituent. In contrast, efficiency's reliance on methoxy is insignificant for the HTM with planar donor. The HTM (M123) featuring the methoxy‑substituted carbazole shows a decent power conversion efficiency of 19.33% due to synergistic effects from both planar structure and methoxy. This work gives a guideline to access HTMs reaching both high-performance and good stability.",

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AU - Li, Mengyuan

AU - Wu, Jinhua

AU - Wang, Guoguo

AU - Wu, Bingxue

AU - Sun, Zhe

AU - Xue, Song

AU - Qiao, Qiquan

AU - Liang, Mao

PY - 2020/8

Y1 - 2020/8

N2 - In this work, a comprehensive study on the deliberate molecular design and modifications of electron donors is carried out to elucidate correlations between the methoxy effects and donor configuration of hole-transporting materials (HTMs). Our initial findings demonstrate the donor-dependent methoxy effects. Photovoltaic performance of the HTM with twisted donor highly depends on the methoxy substituent. In contrast, efficiency's reliance on methoxy is insignificant for the HTM with planar donor. The HTM (M123) featuring the methoxy‑substituted carbazole shows a decent power conversion efficiency of 19.33% due to synergistic effects from both planar structure and methoxy. This work gives a guideline to access HTMs reaching both high-performance and good stability.

AB - In this work, a comprehensive study on the deliberate molecular design and modifications of electron donors is carried out to elucidate correlations between the methoxy effects and donor configuration of hole-transporting materials (HTMs). Our initial findings demonstrate the donor-dependent methoxy effects. Photovoltaic performance of the HTM with twisted donor highly depends on the methoxy substituent. In contrast, efficiency's reliance on methoxy is insignificant for the HTM with planar donor. The HTM (M123) featuring the methoxy‑substituted carbazole shows a decent power conversion efficiency of 19.33% due to synergistic effects from both planar structure and methoxy. This work gives a guideline to access HTMs reaching both high-performance and good stability.

KW - Donor configuration

KW - Hole-transporting materials

KW - Methoxy effect

KW - Perovskite solar cells

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The donor-dependent methoxy effects on the performance of hole-transporting materials for perovskite solar cells

Abstract

Keywords

ASJC Scopus subject areas

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