Benzothiadiazole-Based Double-Cable Conjugated Polymers for Single-Component Organic Solar Cells with Efficiency over 4%

Chao Wang; Dongdong Xia; Fan Yang; Junyu Li; Yonggang Wu; Weiwei Li

doi:10.1021/acsapm.1c00743

Benzothiadiazole-Based Double-Cable Conjugated Polymers for Single-Component Organic Solar Cells with Efficiency over 4%

Chao Wang, Dongdong Xia, Fan Yang (Corresponding author), Junyu Li, Yonggang Wu (Corresponding author), Weiwei Li (Corresponding author)

Molecular Materials and Nanosystems

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

15 Citations (Scopus)

Abstract

Double-cable conjugated polymers have been successfully applied into single-component organic solar cells (SCOSCs) in recent years. The chemical structures of conjugated backbones and aromatic cable units, and the rational tuning of nanophase separation between them, are clue factors for double-cable polymers to further enhance the photovoltaic performance. In this work, we introduced a benzothiadiazole (BT) unit into the backbone of double-cable polymers, where BT was conjugated with two linkers, thiophene and thienothiophene, which were used to control the aggregation behavior. The studies reveal that, although thiophene-containing polymer backbones show less aggregation tendency, the corresponding perylene bisimide (PBI) side units form better stacking. Therefore, thiophene-based double-cable polymers had high hole/electron mobilities and hence a high efficiency of 4.35%, while thienothiophene-containing polymer exhibited a low efficiency of 2.35%. These results demonstrate that BT-polymers display a promising application for high performance double-cable conjugated polymers for SCOSCs.

Original language	English
Pages (from-to)	4645-4650
Number of pages	6
Journal	ACS Applied Polymer Materials
Volume	3
Issue number	9
DOIs	https://doi.org/10.1021/acsapm.1c00743
Publication status	Published - 10 Sept 2021

Bibliographical note

Funding Information:
This study is jointly supported by MOST (2017YFA0204702) and NSFC (52073016, 51773207) of China. This work was further supported by the Shandong Provincial Natural Science Foundation, China (ZR2020QB134). This work was further supported by the Fundamental Research Funds for the Central Universities (buctrc201828, XK1802-2), the Open Project of State Key Laboratory of Supramolecular Structure and Materials (sklssm202043), and the Jiangxi Provincial Department of Science and Technology (no. 20192ACB20009).

Keywords

benzothiadiazole
crystalline cooperativity
double-cable conjugated polymers
perylene bisimide
single-component organic solar cells

UN SDGs

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

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10.1021/acsapm.1c00743

Cite this

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title = "Benzothiadiazole-Based Double-Cable Conjugated Polymers for Single-Component Organic Solar Cells with Efficiency over 4%",

abstract = "Double-cable conjugated polymers have been successfully applied into single-component organic solar cells (SCOSCs) in recent years. The chemical structures of conjugated backbones and aromatic cable units, and the rational tuning of nanophase separation between them, are clue factors for double-cable polymers to further enhance the photovoltaic performance. In this work, we introduced a benzothiadiazole (BT) unit into the backbone of double-cable polymers, where BT was conjugated with two linkers, thiophene and thienothiophene, which were used to control the aggregation behavior. The studies reveal that, although thiophene-containing polymer backbones show less aggregation tendency, the corresponding perylene bisimide (PBI) side units form better stacking. Therefore, thiophene-based double-cable polymers had high hole/electron mobilities and hence a high efficiency of 4.35%, while thienothiophene-containing polymer exhibited a low efficiency of 2.35%. These results demonstrate that BT-polymers display a promising application for high performance double-cable conjugated polymers for SCOSCs.",

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author = "Chao Wang and Dongdong Xia and Fan Yang and Junyu Li and Yonggang Wu and Weiwei Li",

note = "Funding Information: This study is jointly supported by MOST (2017YFA0204702) and NSFC (52073016, 51773207) of China. This work was further supported by the Shandong Provincial Natural Science Foundation, China (ZR2020QB134). This work was further supported by the Fundamental Research Funds for the Central Universities (buctrc201828, XK1802-2), the Open Project of State Key Laboratory of Supramolecular Structure and Materials (sklssm202043), and the Jiangxi Provincial Department of Science and Technology (no. 20192ACB20009). ",

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AU - Wu, Yonggang

AU - Li, Weiwei

N1 - Funding Information: This study is jointly supported by MOST (2017YFA0204702) and NSFC (52073016, 51773207) of China. This work was further supported by the Shandong Provincial Natural Science Foundation, China (ZR2020QB134). This work was further supported by the Fundamental Research Funds for the Central Universities (buctrc201828, XK1802-2), the Open Project of State Key Laboratory of Supramolecular Structure and Materials (sklssm202043), and the Jiangxi Provincial Department of Science and Technology (no. 20192ACB20009).

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N2 - Double-cable conjugated polymers have been successfully applied into single-component organic solar cells (SCOSCs) in recent years. The chemical structures of conjugated backbones and aromatic cable units, and the rational tuning of nanophase separation between them, are clue factors for double-cable polymers to further enhance the photovoltaic performance. In this work, we introduced a benzothiadiazole (BT) unit into the backbone of double-cable polymers, where BT was conjugated with two linkers, thiophene and thienothiophene, which were used to control the aggregation behavior. The studies reveal that, although thiophene-containing polymer backbones show less aggregation tendency, the corresponding perylene bisimide (PBI) side units form better stacking. Therefore, thiophene-based double-cable polymers had high hole/electron mobilities and hence a high efficiency of 4.35%, while thienothiophene-containing polymer exhibited a low efficiency of 2.35%. These results demonstrate that BT-polymers display a promising application for high performance double-cable conjugated polymers for SCOSCs.

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Benzothiadiazole-Based Double-Cable Conjugated Polymers for Single-Component Organic Solar Cells with Efficiency over 4%

Abstract

Bibliographical note

Keywords

UN SDGs

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