Isomerized Green Solid Additive Engineering for Thermally Stable and Eco-Friendly All-Polymer Solar Cells with Approaching 19% Efficiency,Advanced Materials

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Isomerized Green Solid Additive Engineering for Thermally Stable and Eco-Friendly All-Polymer Solar Cells with Approaching 19% Efficiency
Advanced Materials ( IF 27.4 ) Pub Date : 2023-10-11 , DOI: 10.1002/adma.202308334
Bin Liu _{1,

2} , Wan Xu ₃ , Ruijie Ma ₄ , Jin-Woo Lee ₅ , Top Archie Dela Peña _{6,

7} , Wanli Yang ₂ , Bolin Li ₂ , Mingjie Li ₆ , Jiaying Wu ₇ , Yimei Wang ₂ , Chao Zhang ₃ , Jie Yang ₂ , Junwei Wang ₂ , Shangbo Ning ₈ , Zhengfei Wang ₂ , Jianfeng Li ₂ , Hua Wang ₃ , Gang Li ₄ , Bumjoon J Kim ₅ , Li Niu ₁ , Xugang Guo _{2,

9} , Huiliang Sun _{1,

2}

Affiliation

Guangdong Engineering Technology Research Center for Photoelectric Sensing Materials & Devices, Guangzhou Key Laboratory of Sensing Materials & Devices, Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, P. R. China.
Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, P. R. China.
Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, P. R. China.
Department of Electrical and Electronic Engineering, Research Institute for Smart Energy (RISE), Guangdong-Hong Kong-Macao (GHM) Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, P. R. China.
Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.
Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong, 999077, P. R. China.
Advanced Materials Thrust, Function Hub, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou, 510655, P. R. China.
Research Center for Solar Driven Carbon Neutrality, The College of Physics Science and Technology, Hebei University, Baoding, 071002, P. R. China.
Guangdong Provisional Key Laboratory of Functional Oxide Materials and Devices, Southern University of Science and Technology, Shenzhen, 518055, P. R. China.

Laboratory-scale all-polymer solar cells (all-PSCs) have exhibited remarkable power conversion efficiencies (PCEs) exceeding 19%. However, the utilization of hazardous solvents and nonvolatile liquid additives poses challenges for eco-friendly commercialization, resulting in the trade-off between device efficiency and operation stability. Herein, an innovative approach based on isomerized solid additive engineering is proposed, employing volatile dithienothiophene (DTT) isomers to modulate intermolecular interactions and facilitate molecular stacking within the photoactive layers. Through elucidating the underlying principles of the DTT-induced polymer assembly on molecular level, a PCE of 18.72% is achieved for devices processed with environmentally benign solvents, ranking it among the highest record values for eco-friendly all-PSCs. Significantly, such superiorities of the DTT-isomerized strategy afford excellent compatibility with large-area blade-coating techniques, offering a promising pathway for industrial-scale manufacturing of all-PSCs. Moreover, these devices demonstrate enhanced thermal stability with a promising extrapolated T₈₀ lifetime of 14 000 h, further bolstering their potential for sustainable technological advancement.

中文翻译：

用于热稳定且环保的全聚合物太阳能电池的异构化绿色固体添加剂工程，效率接近 19%

实验室规模的全聚合物太阳能电池 (all-PSC) 表现出超过 19% 的卓越功率转换效率 (PCE)。然而，有害溶剂和非挥发性液体添加剂的使用给环保商业化带来了挑战，导致设备效率和运行稳定性之间的权衡。在此，提出了一种基于异构化固体添加剂工程的创新方法，采用挥发性二噻吩并噻吩（DTT）异构体来调节分子间相互作用并促进光敏层内的分子堆叠。通过在分子水平上阐明DTT诱导聚合物组装的基本原理，使用环境友好型溶剂加工的器件实现了18.72%的PCE，跻身环保全PSC的最高记录值之列。值得注意的是，DTT异构化策略的这种优势与大面积刀片涂层技术具有良好的兼容性，为全PSC的工业规模制造提供了一条有前途的途径。此外，这些器件表现出增强的热稳定性，预计T ₈₀寿命为 14000 小时，进一步增强了其可持续技术进步的潜力。

更新日期：2023-10-11

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