Influence of Molecular Geometry of Perylene Diimide Dimers and Polymers on Bulk Heterojunction Morphology Toward High-Performance Nonfullerene Polymer Solar Cells
文献类型：期刊论文
| 作者 | Wu, Chen-Hao1,2; Chueh, Chu-Chen1; Xi, Yu-Yin3; Zhong, Hong-Liang1; Gao, Guang-Peng4; Wang, Zhao-Hui4; Pozzo, Lilo D.3; Wen, Ten-Chin2,5; Jen, Alex K. -Y.1 |
| 刊名 | ADVANCED FUNCTIONAL MATERIALS
 |
| 出版日期 | 2015-09-02 |
| 卷号 | 25期号:33页码:5326-5332 |
| 关键词 | 2D conjugated polymers perylene diimide dimers polymer solar cells nonfullerene acceptors |
| 英文摘要 | In this study, we investigate the influence of molecular geometry of the donor polymers and the perylene diimide dimers (di-PDIs) on the bulk heterojunction (BHJ) morphology in the nonfullerene polymer solar cells (PSCs). The results reveal that the pseudo 2D conjugated poly[4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-b;4,5-b]dithiophene-2,6-diyl-alt-(4-(2-ethylhexyl)-3-fluorothieno[3,4-b]thiophene-)-2-carboxylate-2-6-diyl)] (PTB7-Th) has better miscibility with both bay-linked di-PDI (B-di-PDI) and hydrazine-linked di-PDI (H-di-PDI) compared to its 1D analog, poly[[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b]dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl]] (PTB7), to facilitate more efficient exciton dissociation in the BHJ films. However, the face-on oriented - stacking of PTB7-Th is severely disrupted by the B-di-PDI due to its more flexible structure. On the contrary, the face-on oriented - stacking is only slightly disrupted by the H-di-PDI, which has a more rigid structure to provide suitable percolation pathways for charge transport. As a result, a very high power conversion efficiency (PCE) of 6.41% is achieved in the PTB7-Th:H-di-PDI derived device. This study shows that it is critical to pair suitable polymer donor and di-PDI-based acceptor to obtain proper BHJ morphology for achieving high PCE in the nonfullerene PSCs. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/27646]  |
| 专题 | 化学研究所_有机固体实验室 |
| 作者单位 | 1.Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA 2.Natl Cheng Kung Univ, Dept Chem Engn, Tainan 70101, Taiwan 3.Univ Washington, Dept Chem Engn, Seattle, WA 98195 USA 4.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, State Key Lab Organ Solids, Beijing 100190, Peoples R China 5.Natl Cheng Kung Univ, Adv Optoelect Technol Ctr, Tainan 70101, Taiwan |
| 推荐引用方式 GB/T 7714 | Wu, Chen-Hao,Chueh, Chu-Chen,Xi, Yu-Yin,et al. Influence of Molecular Geometry of Perylene Diimide Dimers and Polymers on Bulk Heterojunction Morphology Toward High-Performance Nonfullerene Polymer Solar Cells[J]. ADVANCED FUNCTIONAL MATERIALS,2015,25(33):5326-5332. |
| APA | Wu, Chen-Hao.,Chueh, Chu-Chen.,Xi, Yu-Yin.,Zhong, Hong-Liang.,Gao, Guang-Peng.,...&Jen, Alex K. -Y..(2015).Influence of Molecular Geometry of Perylene Diimide Dimers and Polymers on Bulk Heterojunction Morphology Toward High-Performance Nonfullerene Polymer Solar Cells.ADVANCED FUNCTIONAL MATERIALS,25(33),5326-5332. |
| MLA | Wu, Chen-Hao,et al."Influence of Molecular Geometry of Perylene Diimide Dimers and Polymers on Bulk Heterojunction Morphology Toward High-Performance Nonfullerene Polymer Solar Cells".ADVANCED FUNCTIONAL MATERIALS 25.33(2015):5326-5332. |
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来源：化学研究所
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