Over 14% Efficiency in Organic Solar Cells Enabled by Chlorinated Nonfullerene Small-Molecule Acceptors
文献类型：期刊论文
| 作者 | Zhang, Hao1,2; Yao, Huifeng1; Hou, Junxian3; Zhu, Jie1; Zhang, Jianqi4; Li, Wanning1,2; Yu, Runnan1,2; Gao, Bowei1,2; Zhang, Shaoqing1; Hou, Jianhui1,2 |
| 刊名 | ADVANCED MATERIALS
 |
| 出版日期 | 2018-07-12 |
| 卷号 | 30期号:28 |
| 关键词 | Chlorination Cost Nonfullerene Acceptors Organic Solar Cells Ternary Solar Cells |
| ISSN号 | 0935-9648 |
| DOI | 10.1002/adma.201800613 |
| 英文摘要 | To make organic solar cells (OSCs) more competitive in the diverse photovoltaic cell technologies, it is very important to demonstrate that OSCs can achieve very good efficiencies and that their cost can be reduced. Here, a pair of nonfullerene small-molecule acceptors, IT-2Cl and IT-4Cl, is designed and synthesized by introducing easy-synthesis chlorine substituents onto the indacenodithieno[3,2-b]thiophene units. The unique feature of the large dipole moment of the C-Cl bond enhances the intermolecular charge-transfer effect between the donor-acceptor structures, and thus expands the absorption and down shifts the molecular energy levels. Meanwhile, the introduction of C-Cl also causes more pronounced molecular stacking, which also helps to expand the absorption spectrum. Both of the designed OSCs devices based on two acceptors can deliver a power conversion efficiency (PCE) greater than 13% when blended with a polymer donor with a low-lying highest occupied molecular orbital level. In addition, since IT-2Cl and IT-4Cl have very good compatibility, a ternary OSC device integrating these two acceptors is also fabricated and obtains a PCE greater than 14%. Chlorination demonstrates effective ability in enhancing the device performance and facile synthesis route, which both deserve further exploitation in the modification of photovoltaic materials. |
| 语种 | 英语 |
| WOS记录号 | WOS:000439994500014 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/41925]  |
| 专题 | 化学研究所_高分子物理与化学实验室 |
| 通讯作者 | Yao, Huifeng; Hou, Jianhui |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Polymer Phys & Chem, CAS Res Educ Ctr Excellence Mol Sci, Beijing Natl Lab Mol Sci,Inst Chem, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem Sci, Beijing 100049, Peoples R China 3.Hebei Univ Engn, Coll Mat Sci & Engn, Dept Composite Mat & Engn, Handan 056038, Peoples R China 4.Natl Ctr Nanosci & Technol, Key Lab Nanosyst & Hierarch Fabricat, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Hao,Yao, Huifeng,Hou, Junxian,et al. Over 14% Efficiency in Organic Solar Cells Enabled by Chlorinated Nonfullerene Small-Molecule Acceptors[J]. ADVANCED MATERIALS,2018,30(28). |
| APA | Zhang, Hao.,Yao, Huifeng.,Hou, Junxian.,Zhu, Jie.,Zhang, Jianqi.,...&Hou, Jianhui.(2018).Over 14% Efficiency in Organic Solar Cells Enabled by Chlorinated Nonfullerene Small-Molecule Acceptors.ADVANCED MATERIALS,30(28). |
| MLA | Zhang, Hao,et al."Over 14% Efficiency in Organic Solar Cells Enabled by Chlorinated Nonfullerene Small-Molecule Acceptors".ADVANCED MATERIALS 30.28(2018). |
入库方式： OAI收割
来源：化学研究所
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