Manipulating the Crystalline Morphology in the Nonfullerene Acceptor Mixture to Improve the Carrier Transport and Suppress the Energetic Disorder
Ming Zhang,
Lei Zhu,
Chaoqun Qiu,
Tianyu Hao,
Yufeng Jiang,
Shifeng Leng,
Jiajun Chen,
Guanqing Zhou,
Zichun Zhou,
Yecheng Zou,
Xuan Su,
Zhiwen Shi,
Haiming Zhu,
Yongming Zhang,
Thomas P Russell,
Xiaozhang Zhu,
Feng Liu
Affiliations
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 P. R. China
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 P. R. China
Chaoqun Qiu
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 P. R. China
Tianyu Hao
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 P. R. China
Yufeng Jiang
Department of Polymer Science and Engineering University of Massachusetts Amherst MA 01003 USA
Shifeng Leng
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 P. R. China
Jiajun Chen
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 P. R. China
Guanqing 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 P. R. China
Zichun 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 P. R. China
Yecheng Zou
State Key Laboratory of Fluorinated Functional Membrane Materials Dongyue Future Hydrogen Energy Materials Company Zibo Shandong 256401 P. R. China
Xuan Su
State Key Laboratory of Fluorinated Functional Membrane Materials Dongyue Future Hydrogen Energy Materials Company Zibo Shandong 256401 P. R. China
Zhiwen Shi
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 P. R. China
Haiming Zhu
Department of Chemistry Zhejiang University Zhejiang 310027 P. R. China
Yongming 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 P. R. China
Thomas P Russell
Department of Polymer Science and Engineering University of Massachusetts Amherst MA 01003 USA
Xiaozhang Zhu
Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
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 P. R. China
Mixtures of nonfullerene acceptors (NFAs) are prepared to fine‐tune bulk heterojunction (BHJ) thin‐film morphologies. The acceptor phase resulting from these mixtures has unique physical properties with excellent optoelectronic processes that dictate the output of organic photovoltaic (OPV) devices. Remarkable short‐circuit current densities (JSC) and fill factors (FFs) are achieved due to the formation of better crystalline fibrils that suppress geminate recombination, leading to improved charge transport with enhanced crystallinity and aligned cascading energy levels confirm efficient exciton diffusion and dissociation, yielding more effective exciton recycling. The decreased Urbach energy and suppressed energetic disorder account for the improvement in the open‐circuit voltage (VOC). A maximum power conversion efficiency of 17.86% is obtained, underscoring the importance of using specific material interactions to produce a suitable morphology and manage energy loss, resulting in ideal organic solar cell (OSC) devices.
