Efficient and Air-Stable Aqueous-Processed Organic Solar Cells and Transistors: Impact of Water Addition on Processability and Thin-Film Morphologies of Electroactive Materials

Changyeon Lee; Hae Rang Lee; Joonhyeong Choi; Youngkwon Kim; Thanh Luan Nguyen; Wonho Lee; Bhoj Gautam; Xiang Liu; Kai Zhang; Fei Huang; Joon Hak Oh; Han Young Woo; Bumjoon J. Kim

doi:10.1002/aenm.201802674

Efficient and Air-Stable Aqueous-Processed Organic Solar Cells and Transistors: Impact of Water Addition on Processability and Thin-Film Morphologies of Electroactive Materials

Changyeon Lee, Hae Rang Lee, Joonhyeong Choi, Youngkwon Kim, Thanh Luan Nguyen, Wonho Lee, Bhoj Gautam, Xiang Liu, Kai Zhang, Fei Huang, Joon Hak Oh, Han Young Woo, Bumjoon J. Kim

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

57 Citations (Scopus)

Abstract

The authors report the development of a desirable aqueous process for ecofriendly fabrication of efficient and stable organic field-effect transistors (eco-OFETs) and polymer solar cells (eco-PSCs). Intriguingly, the addition of a typical antisolvent, water, to ethanol is found to remarkably enhance the solubility of oligoethylene glycol (OEG) side chain-based electroactive materials (e.g., the highly crystalline conjugated polymer PPDT2FBT-A and the fullerene monoadduct PC₆₁BO₁₂). A water–ethanol cosolvent with a 1:1 molar ratio provides an increased solubility of PPDT2FBT-A from 2.3 to 42.9 mg mL⁻¹ and that of PC₆₁BO₁₂ from 0.3 to 40.5 mg mL⁻¹. Owing to the improved processability, efficient eco-OFETs with a hole mobility of 2.0 × 10⁻² cm² V⁻¹ s⁻¹ and eco-PSCs with a power conversion efficiency of 2.05% are successfully fabricated. In addition, the eco-PSCs fabricated with water–ethanol processing are highly stable under ambient conditions, showing the great potential of this new process for industrial scale application. To better understand the underlying role of water addition, the influence of water addition on the thin-film morphologies and the performance of the eco-OFETs and eco-PSCs are studied. Additionally, it is demonstrated that the application of the aqueous process can be extended to a variety of other OEG-based material systems.

Original language	English
Article number	1802674
Journal	Advanced Energy Materials
Volume	8
Issue number	34
DOIs	https://doi.org/10.1002/aenm.201802674
Publication status	Published - 2018 Dec 5

Bibliographical note

Funding Information:
This research was supported by the National Research Foundation Grant (2017M3A7B8065584, 2012M3A6A7055540), funded by the Korean Government. H.Y. Woo is grateful for the financial support from Korea University (KU future research grant).

Publisher Copyright:
© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

ecofriendly solution processing
oligoethylene glycol-based conjugated materials
organic field-effect transistors
polymer solar cells
water–ethanol cosolvent

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
General Materials Science

UN SDGs

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

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10.1002/aenm.201802674

Cite this

Lee, C., Lee, H. R., Choi, J., Kim, Y., Nguyen, T. L., Lee, W., Gautam, B., Liu, X., Zhang, K., Huang, F., Oh, J. H., Woo, H. Y., & Kim, B. J. (2018). Efficient and Air-Stable Aqueous-Processed Organic Solar Cells and Transistors: Impact of Water Addition on Processability and Thin-Film Morphologies of Electroactive Materials. Advanced Energy Materials, 8(34), Article 1802674. https://doi.org/10.1002/aenm.201802674

Efficient and Air-Stable Aqueous-Processed Organic Solar Cells and Transistors: Impact of Water Addition on Processability and Thin-Film Morphologies of Electroactive Materials. / Lee, Changyeon; Lee, Hae Rang; Choi, Joonhyeong et al.
In: Advanced Energy Materials, Vol. 8, No. 34, 1802674, 05.12.2018.

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

Lee, C, Lee, HR, Choi, J, Kim, Y, Nguyen, TL, Lee, W, Gautam, B, Liu, X, Zhang, K, Huang, F, Oh, JH, Woo, HY & Kim, BJ 2018, 'Efficient and Air-Stable Aqueous-Processed Organic Solar Cells and Transistors: Impact of Water Addition on Processability and Thin-Film Morphologies of Electroactive Materials', Advanced Energy Materials, vol. 8, no. 34, 1802674. https://doi.org/10.1002/aenm.201802674

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abstract = "The authors report the development of a desirable aqueous process for ecofriendly fabrication of efficient and stable organic field-effect transistors (eco-OFETs) and polymer solar cells (eco-PSCs). Intriguingly, the addition of a typical antisolvent, water, to ethanol is found to remarkably enhance the solubility of oligoethylene glycol (OEG) side chain-based electroactive materials (e.g., the highly crystalline conjugated polymer PPDT2FBT-A and the fullerene monoadduct PC61BO12). A water–ethanol cosolvent with a 1:1 molar ratio provides an increased solubility of PPDT2FBT-A from 2.3 to 42.9 mg mL−1 and that of PC61BO12 from 0.3 to 40.5 mg mL−1. Owing to the improved processability, efficient eco-OFETs with a hole mobility of 2.0 × 10−2 cm2 V−1 s−1 and eco-PSCs with a power conversion efficiency of 2.05% are successfully fabricated. In addition, the eco-PSCs fabricated with water–ethanol processing are highly stable under ambient conditions, showing the great potential of this new process for industrial scale application. To better understand the underlying role of water addition, the influence of water addition on the thin-film morphologies and the performance of the eco-OFETs and eco-PSCs are studied. Additionally, it is demonstrated that the application of the aqueous process can be extended to a variety of other OEG-based material systems.",

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AU - Choi, Joonhyeong

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AU - Lee, Wonho

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AU - Liu, Xiang

AU - Zhang, Kai

AU - Huang, Fei

AU - Oh, Joon Hak

AU - Woo, Han Young

AU - Kim, Bumjoon J.

N1 - Funding Information: This research was supported by the National Research Foundation Grant (2017M3A7B8065584, 2012M3A6A7055540), funded by the Korean Government. H.Y. Woo is grateful for the financial support from Korea University (KU future research grant). Publisher Copyright: © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

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N2 - The authors report the development of a desirable aqueous process for ecofriendly fabrication of efficient and stable organic field-effect transistors (eco-OFETs) and polymer solar cells (eco-PSCs). Intriguingly, the addition of a typical antisolvent, water, to ethanol is found to remarkably enhance the solubility of oligoethylene glycol (OEG) side chain-based electroactive materials (e.g., the highly crystalline conjugated polymer PPDT2FBT-A and the fullerene monoadduct PC61BO12). A water–ethanol cosolvent with a 1:1 molar ratio provides an increased solubility of PPDT2FBT-A from 2.3 to 42.9 mg mL−1 and that of PC61BO12 from 0.3 to 40.5 mg mL−1. Owing to the improved processability, efficient eco-OFETs with a hole mobility of 2.0 × 10−2 cm2 V−1 s−1 and eco-PSCs with a power conversion efficiency of 2.05% are successfully fabricated. In addition, the eco-PSCs fabricated with water–ethanol processing are highly stable under ambient conditions, showing the great potential of this new process for industrial scale application. To better understand the underlying role of water addition, the influence of water addition on the thin-film morphologies and the performance of the eco-OFETs and eco-PSCs are studied. Additionally, it is demonstrated that the application of the aqueous process can be extended to a variety of other OEG-based material systems.

AB - The authors report the development of a desirable aqueous process for ecofriendly fabrication of efficient and stable organic field-effect transistors (eco-OFETs) and polymer solar cells (eco-PSCs). Intriguingly, the addition of a typical antisolvent, water, to ethanol is found to remarkably enhance the solubility of oligoethylene glycol (OEG) side chain-based electroactive materials (e.g., the highly crystalline conjugated polymer PPDT2FBT-A and the fullerene monoadduct PC61BO12). A water–ethanol cosolvent with a 1:1 molar ratio provides an increased solubility of PPDT2FBT-A from 2.3 to 42.9 mg mL−1 and that of PC61BO12 from 0.3 to 40.5 mg mL−1. Owing to the improved processability, efficient eco-OFETs with a hole mobility of 2.0 × 10−2 cm2 V−1 s−1 and eco-PSCs with a power conversion efficiency of 2.05% are successfully fabricated. In addition, the eco-PSCs fabricated with water–ethanol processing are highly stable under ambient conditions, showing the great potential of this new process for industrial scale application. To better understand the underlying role of water addition, the influence of water addition on the thin-film morphologies and the performance of the eco-OFETs and eco-PSCs are studied. Additionally, it is demonstrated that the application of the aqueous process can be extended to a variety of other OEG-based material systems.

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Efficient and Air-Stable Aqueous-Processed Organic Solar Cells and Transistors: Impact of Water Addition on Processability and Thin-Film Morphologies of Electroactive Materials

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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