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A Pseudo Planar Heterojunction Structure for Eco-Friendly Printable Organic Solar Cells Achieving 19.05% Efficiency
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2024-04-27 , DOI: 10.1002/adfm.202402680
Pei Wang 1 , Jiayou Zhang 1 , Dou Luo 2 , Jingwei Xue 3 , Lifu Zhang 1 , Houdong Mao 4 , Yilin Wang 3 , Chongbin Yu 1 , Wei Ma 3 , Yiwang Chen 1, 4, 5
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2024-04-27 , DOI: 10.1002/adfm.202402680
Pei Wang 1 , Jiayou Zhang 1 , Dou Luo 2 , Jingwei Xue 3 , Lifu Zhang 1 , Houdong Mao 4 , Yilin Wang 3 , Chongbin Yu 1 , Wei Ma 3 , Yiwang Chen 1, 4, 5
Affiliation
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Obtaining a well-accurate vertical distribution active layer morphology through the air-printing process is an essential task for achieving efficient scalable large-area organic solar cells (OSCs). In this target, the desired and controllable pseudo planar heterojunction (PPHJ) active layer structure with suitable phase separation is developed by pre-deposited D18-Cl layer under the PM6:BTP-eC9 film via an eco-friendly manufacturing method. The addition of the D18-Cl regulates molecular crystallization and leads to an ideal vertical stratification while simultaneously suppressing voltage loss, optimizing energetic disorder, and carrier management. Impressively, the optimal PPHJ devices perform superior power conversion efficiencies (PCEs) of 19.05% (100 nm), 17.33% (300 nm), and 14.14% (4 cm2) compared to the BHJ devices. Importantly, the PPHJ OSCs also exhibit an impressive extrapolated T80 (the time required to reach 80% of initial PCE) of long-time storage and operational stability, as well as thermal stability.
中文翻译：
用于环保可印刷有机太阳能电池的伪平面异质结结构实现 19.05% 的效率
通过空气印刷工艺获得精确的垂直分布活性层形貌是实现高效可扩展大面积有机太阳能电池（OSC）的一项重要任务。在此目标中，通过环保制造方法在 PM6:BTP-eC9 薄膜下预沉积 D18-Cl 层，开发出具有适当相分离的所需可控伪平面异质结 (PPHJ) 有源层结构。 D18-Cl 的添加可调节分子结晶并产生理想的垂直分层，同时抑制电压损失、优化能量无序和载流子管理。令人印象深刻的是，与 BHJ 器件相比，最佳 PPHJ 器件的功率转换效率 (PCE) 分别为 19.05% (100 nm)、17.33% (300 nm) 和 14.14% (4 cm 2 )。重要的是，PPHJ OSC 还表现出令人印象深刻的外推 T 80 （达到初始 PCE 80% 所需的时间）的长期存储和操作稳定性以及热稳定性。
更新日期：2024-04-27
中文翻译：
用于环保可印刷有机太阳能电池的伪平面异质结结构实现 19.05% 的效率
通过空气印刷工艺获得精确的垂直分布活性层形貌是实现高效可扩展大面积有机太阳能电池（OSC）的一项重要任务。在此目标中，通过环保制造方法在 PM6:BTP-eC9 薄膜下预沉积 D18-Cl 层，开发出具有适当相分离的所需可控伪平面异质结 (PPHJ) 有源层结构。 D18-Cl 的添加可调节分子结晶并产生理想的垂直分层，同时抑制电压损失、优化能量无序和载流子管理。令人印象深刻的是，与 BHJ 器件相比，最佳 PPHJ 器件的功率转换效率 (PCE) 分别为 19.05% (100 nm)、17.33% (300 nm) 和 14.14% (4 cm 2 )。重要的是，PPHJ OSC 还表现出令人印象深刻的外推 T 80 （达到初始 PCE 80% 所需的时间）的长期存储和操作稳定性以及热稳定性。
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