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Liu J, Deng J, Zhu Y, Geng X, Zhang L, Jeong SY, Zhou D, Woo HY, Chen D, Wu F, Chen L. Regulation of Polymer Configurations Enables Green Solvent-Processed Large-Area Binary All-Polymer Solar Cells With Breakthrough Performance and High Efficiency Stretchability Factor. Adv Mater 2023; 35:e2208008. [PMID: 36271739 DOI: 10.1002/adma.202208008] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/19/2022] [Indexed: 06/16/2023]
Abstract
With the great potential of the all-polymer solar cells for large-area wearable devices, both large-area device efficiency and mechanical flexibility are very critical but attract limited attention. In this work, from the perspective of the polymer configurations, two types of terpolymer acceptors PYTX-A and PYTX-B (X = Cl or H) are developed. The configuration difference caused by the replacement of non-conjugated units results in distinct photovoltaic performance and mechanical flexibility. Benefiting from a good match between the intrinsically slow film-forming of the active materials and the technically slow film-forming of the blade-coating process, the toluene-processed large-area (1.21 cm2 ) binary device achieves a record efficiency of 14.70%. More importantly, a new parameter of efficiency stretchability factor (ESF) is proposed for the first time to comprehensively evaluate the overall device performance. PM6:PYTCl-A and PM6:PYTCl-B yield significantly higher ESF than PM6:PY-IT. Further blending with non-conjugated polymer donor PM6-A, the best ESF of 3.12% is achieved for PM6-A:PYTCl-A, which is among the highest comprehensive performances.
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Affiliation(s)
- Jiabin Liu
- College of Chemistry and Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, Nanchang, 330031, P. R. China
| | - Jiawei Deng
- College of Chemistry and Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, Nanchang, 330031, P. R. China
| | - Yangyang Zhu
- College of Chemistry and Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, Nanchang, 330031, P. R. China
| | - Xiaokang Geng
- School of Materials Science and Engineering, Tianjin Key Laboratory of Molecular Optoelectronic Science, Tianjin University, Tianjin, 300072, China
| | - Lifu Zhang
- Institute of Advanced Scientific Research (iASR), Jiangxi Normal University, Nanchang, 330022, P. R. China
| | - Sang Young Jeong
- Department of Chemistry, College of Science, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Dan Zhou
- Key Laboratory of Jiangxi Province for Persistent Pollutants, Control and Resources Recycle, Nanchang Hangkong University, Nanchang, 330063, P. R. China
| | - Han Young Woo
- Department of Chemistry, College of Science, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Dong Chen
- Institute of Advanced Scientific Research (iASR), Jiangxi Normal University, Nanchang, 330022, P. R. China
| | - Feiyan Wu
- College of Chemistry and Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, Nanchang, 330031, P. R. China
| | - Lie Chen
- College of Chemistry and Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, Nanchang, 330031, P. R. China
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