Subtle Molecular Tailoring Induces Significant Morphology Optimization Enabling over 16% Efficiency Organic Solar Cells with Efficient Charge Generation
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- Zichun Zhou
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
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- Wenrui Liu
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
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- Guanqing Zhou
- Department of Polymer Science and Engineering School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 China
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- Ming Zhang
- Department of Polymer Science and Engineering School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 China
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- Deping Qian
- Department of Physics Chemistry and Biology Linköping University Linköping 58183 Sweden
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- Jianyun Zhang
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
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- Shanshan Chen
- MOE Key Laboratory of Low‐grade Energy Utilization Technologies and Systems CQU‐NUS Renewable Energy Materials and Devices Joint Laboratory School of Energy and Power Engineering Chongqing University Chongqing 400044 China
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- Shengjie Xu
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
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- Changduk Yang
- Department of Energy Engineering School of Energy and Chemical Engineering Perovtronics Research Center Low Dimensional Carbon Materials Center Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of Korea
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- Feng Gao
- Department of Physics Chemistry and Biology Linköping University Linköping 58183 Sweden
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- Haiming Zhu
- Department of Chemistry Zhejiang University Hangzhou 310027 China
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- Feng Liu
- Department of Polymer Science and Engineering School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 China
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- Xiaozhang Zhu
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
書誌事項
- 公開日
- 2019-12-09
- 権利情報
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- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
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- 10.1002/adma.201906324
- 公開者
- Wiley
この論文をさがす
説明
<jats:title>Abstract</jats:title><jats:p>Manipulating charge generation in a broad spectral region has proved to be crucial for nonfullerene‐electron‐acceptor‐based organic solar cells (OSCs). 16.64% high efficiency binary OSCs are achieved through the use of a novel electron acceptor AQx‐2 with quinoxaline‐containing fused core and PBDB‐TF as donor. The significant increase in photovoltaic performance of AQx‐2 based devices is obtained merely by a subtle tailoring in molecular structure of its analogue AQx‐1. Combining the detailed morphology and transient absorption spectroscopy analyses, a good structure–morphology–property relationship is established. The stronger π–π interaction results in efficient electron hopping and balanced electron and hole mobilities attributed to good charge transport. Moreover, the reduced phase separation morphology of AQx‐2‐based bulk heterojunction blend boosts hole transfer and suppresses geminate recombination. Such success in molecule design and precise morphology optimization may lead to next‐generation high‐performance OSCs.</jats:p>
収録刊行物
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- Advanced Materials
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Advanced Materials 32 (4), 1906324-, 2019-12-09
Wiley