Construction of Shamrock-Shaped Giant Molecule Acceptors for Efficient Organic Solar Cells
Corresponding Author
Shengjie Xu
School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In situ Center for Physical Science, and Center of Hydrogen Science Shanghai Jiao Tong University, Shanghai, 200240 China
E-mail: [email protected]; [email protected]; [email protected]; [email protected]
Search for more papers by this authorQixin He
School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In situ Center for Physical Science, and Center of Hydrogen Science Shanghai Jiao Tong University, Shanghai, 200240 China
Search for more papers by this authorXiaonan Xue
Shanghai OPV Solar New Energy Technology Co., Ltd, Shanghai, 201210 China
Search for more papers by this authorJiawei Deng
School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In situ Center for Physical Science, and Center of Hydrogen Science Shanghai Jiao Tong University, Shanghai, 200240 China
Search for more papers by this authorFei Han
School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In situ Center for Physical Science, and Center of Hydrogen Science Shanghai Jiao Tong University, Shanghai, 200240 China
Search for more papers by this authorFei Xie
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230000 China
Search for more papers by this authorXuechen Jiao
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230000 China
Search for more papers by this authorLibo Zhou
School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In situ Center for Physical Science, and Center of Hydrogen Science Shanghai Jiao Tong University, Shanghai, 200240 China
Search for more papers by this authorRui Zeng
School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In situ Center for Physical Science, and Center of Hydrogen Science Shanghai Jiao Tong University, Shanghai, 200240 China
Search for more papers by this authorCorresponding Author
Ming Zhang
School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In situ Center for Physical Science, and Center of Hydrogen Science Shanghai Jiao Tong University, Shanghai, 200240 China
E-mail: [email protected]; [email protected]; [email protected]; [email protected]
Search for more papers by this authorCorresponding Author
Lei Zhu
School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In situ Center for Physical Science, and Center of Hydrogen Science Shanghai Jiao Tong University, Shanghai, 200240 China
E-mail: [email protected]; [email protected]; [email protected]; [email protected]
Search for more papers by this authorHao Jing
Shanghai OPV Solar New Energy Technology Co., Ltd, Shanghai, 201210 China
Search for more papers by this authorYongming Zhang
School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In situ Center for Physical Science, and Center of Hydrogen Science Shanghai Jiao Tong University, Shanghai, 200240 China
State Key Laboratory of Fluorinated Functional Membrane Materials and Dongyue Future Hydrogen Energy Materials Company, Zibo City, Shandong, 256401 China
Search for more papers by this authorCorresponding Author
Feng Liu
School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In situ Center for Physical Science, and Center of Hydrogen Science Shanghai Jiao Tong University, Shanghai, 200240 China
Suzhou Laboratory, Suzhou, 215100 China
State Key Laboratory of Fluorinated Functional Membrane Materials and Dongyue Future Hydrogen Energy Materials Company, Zibo City, Shandong, 256401 China
E-mail: [email protected]; [email protected]; [email protected]; [email protected]
Search for more papers by this authorCorresponding Author
Shengjie Xu
School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In situ Center for Physical Science, and Center of Hydrogen Science Shanghai Jiao Tong University, Shanghai, 200240 China
E-mail: [email protected]; [email protected]; [email protected]; [email protected]
Search for more papers by this authorQixin He
School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In situ Center for Physical Science, and Center of Hydrogen Science Shanghai Jiao Tong University, Shanghai, 200240 China
Search for more papers by this authorXiaonan Xue
Shanghai OPV Solar New Energy Technology Co., Ltd, Shanghai, 201210 China
Search for more papers by this authorJiawei Deng
School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In situ Center for Physical Science, and Center of Hydrogen Science Shanghai Jiao Tong University, Shanghai, 200240 China
Search for more papers by this authorFei Han
School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In situ Center for Physical Science, and Center of Hydrogen Science Shanghai Jiao Tong University, Shanghai, 200240 China
Search for more papers by this authorFei Xie
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230000 China
Search for more papers by this authorXuechen Jiao
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230000 China
Search for more papers by this authorLibo Zhou
School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In situ Center for Physical Science, and Center of Hydrogen Science Shanghai Jiao Tong University, Shanghai, 200240 China
Search for more papers by this authorRui Zeng
School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In situ Center for Physical Science, and Center of Hydrogen Science Shanghai Jiao Tong University, Shanghai, 200240 China
Search for more papers by this authorCorresponding Author
Ming Zhang
School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In situ Center for Physical Science, and Center of Hydrogen Science Shanghai Jiao Tong University, Shanghai, 200240 China
E-mail: [email protected]; [email protected]; [email protected]; [email protected]
Search for more papers by this authorCorresponding Author
Lei Zhu
School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In situ Center for Physical Science, and Center of Hydrogen Science Shanghai Jiao Tong University, Shanghai, 200240 China
E-mail: [email protected]; [email protected]; [email protected]; [email protected]
Search for more papers by this authorHao Jing
Shanghai OPV Solar New Energy Technology Co., Ltd, Shanghai, 201210 China
Search for more papers by this authorYongming Zhang
School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In situ Center for Physical Science, and Center of Hydrogen Science Shanghai Jiao Tong University, Shanghai, 200240 China
State Key Laboratory of Fluorinated Functional Membrane Materials and Dongyue Future Hydrogen Energy Materials Company, Zibo City, Shandong, 256401 China
Search for more papers by this authorCorresponding Author
Feng Liu
School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In situ Center for Physical Science, and Center of Hydrogen Science Shanghai Jiao Tong University, Shanghai, 200240 China
Suzhou Laboratory, Suzhou, 215100 China
State Key Laboratory of Fluorinated Functional Membrane Materials and Dongyue Future Hydrogen Energy Materials Company, Zibo City, Shandong, 256401 China
E-mail: [email protected]; [email protected]; [email protected]; [email protected]
Search for more papers by this authorGraphical Abstract
Based on the highly efficient Qx series of small molecules, we have synthesized T-Qxs, which are shamrock-shaped giant molecules with high glass transition temperature. The miscibility with the polymer donor PM6 was fine-tuned by modulation of the central and terminal atoms, thereby altering the molecular distortion angle. Organic solar cells (OSCs) based on the fully chlorine-substituted T-Qx-15Cl achieve both high power conversion efficiency (PCE) and high thermal stability.
Abstract
The discovery of non-fullerene small molecule acceptor materials has breathed new development into organic solar cells (OSCs). However, it has also introduced the issue of insufficient device stability. Enhancing the glass transition temperature (Tg) of materials by connecting small molecules into giant molecules, thereby improving morphological stability, represents an effective material design strategy to address this issue. In this work, we have synthesized the shamrock-shaped giant molecule materials T-Qx based on high efficiency Qx-series small molecule materials. Through systematically modulating the terminal and the central halogen atoms, precise control of the molecular conformation can be achieved. Notably, the fully chlorine-substituted giant molecule T-Qx-15Cl exhibits the largest torsion angle of approximately 40° and achieves the highest Tg (up to 188 °C) among these new materials. Photovoltaic devices based on these giant molecules demonstrate a low non-radiative energy loss of approximately 0.21 eV, which results in a high open-circuit voltage (Voc) above 0.93 V. T-Qx-15Cl presents the strongest interaction with the polymer donor PM6, achieving a power conversion efficiency (PCE) of more than 20%. This remarkable performance is attributed to the large twisting angle that effectively prevents the excessive aggregation of large π-conjugated planar molecules.
Conflict of Interests
The authors declare no conflict of interest.
Open Research
Data Availability Statement
The data that support the findings of this study are available from the corresponding author upon reasonable request.
Supporting Information
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| anie202507616-sup-0001-SuppMat.docx19.3 MB | Supporting Information |
Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
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