Combining Energy Transfer and Optimized Morphology for Highly Efficient Ternary Polymer Solar Cells
文献类型：期刊论文
| 作者 | Zhao, Fuwen1,2; Li, Yang1; Wang, Zaiyu3; Yang, Yang4; Wang, Zhen4; He, Guiying1; Zhang, Jianqi4; Jiang, Li1; Wang, Taishan1; Wei, Zhixiang4 |
| 刊名 | ADVANCED ENERGY MATERIALS
 |
| 出版日期 | 2017-07-05 |
| 卷号 | 7期号:13 |
| 英文摘要 | Aimed at achieving ideal morphology, illuminating morphology-performance relationship, and further improving the power conversion efficiency (PCE) of ternary polymer solar cells (TSCs), a ternary system is designed based on PTB7-Th: PffBT4T-2OD:PC71BM in this work. The PffBT4T-2OD owns large absorption cross section, proper energy levels, and good crystallinity, which enhances exciton generation, charge dissociation and transport and suppresses charge recombination, thus remarkably increasing the short-circuit current density (J(sc)) and fill factor (FF). Finally, a notable PCE of 10.72% is obtained for the TSCs with 15% weight ratio of PffBT4T-2OD. As for the working mechanism, it confirmed the energy transfer from PffBT4T-2OD to PTB7-Th, which contributes to the improved exciton generation. And morphology characterization indicates that the devices with 15% PffBT4T-2OD possess both appropriate domain size (25 nm) and enhanced domain purity. Under this condition, it affords numerous D/A interface for exciton dissociation and good bicontinuous nanostructure for charge transport simultaneously. As a result, the device with 15% PffBT4T-2OD exhibits improved exciton generation, enhanced charge dissociation possibility, elevated hole mobility and inhibited charge recombination, leading to elevated Jsc (19.02 mA cm(-2)) and FF (72.62%) simultaneously. This work indicates that morphology optimization as well as energy transfer plays a significant role in improving TSC performance. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/39015]  |
| 专题 | 化学研究所_分子纳米结构与纳米技术实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China 4.Natl Ctr Nanosci & Technol, Beijing 100190, Peoples R China 5.Henan Normal Univ, Sch Chem & Chem Engn, Xinxiang 453007, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Fuwen,Li, Yang,Wang, Zaiyu,et al. Combining Energy Transfer and Optimized Morphology for Highly Efficient Ternary Polymer Solar Cells[J]. ADVANCED ENERGY MATERIALS,2017,7(13). |
| APA | Zhao, Fuwen.,Li, Yang.,Wang, Zaiyu.,Yang, Yang.,Wang, Zhen.,...&Wang, Chunru.(2017).Combining Energy Transfer and Optimized Morphology for Highly Efficient Ternary Polymer Solar Cells.ADVANCED ENERGY MATERIALS,7(13). |
| MLA | Zhao, Fuwen,et al."Combining Energy Transfer and Optimized Morphology for Highly Efficient Ternary Polymer Solar Cells".ADVANCED ENERGY MATERIALS 7.13(2017). |
入库方式： OAI收割
来源：化学研究所
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