Fine-Tuning LUMO Energy Levels of Conjugated Polymers Containing a B <- N Unit
文献类型：期刊论文
| 作者 | Long, Xiaojing1,2; Dou, Chuandong1; Liu, Jun1; Wang, Lixiang1 |
| 刊名 | MACROMOLECULES
 |
| 出版日期 | 2017-11-14 |
| 卷号 | 50期号:21页码:8521-8528 |
| ISSN号 | 0024-9297 |
| DOI | 10.1021/acs.macromol.7b01986 |
| 英文摘要 | The LUMO and HOMO energy levels (E-LUMO/E-HOMO) are key parameters for conjugated polymers, which can greatly affect their applications in organic optoelectronic devices. In this manuscript, with donor acceptor (D-A) type conjugated polymers based on double B-N bridged bipyridine (BNBP) unit, we report fine-tuning of komo of conjugated polymers in a wide range via substitutions on both D unit and A unit. We synthesize eight D-A type conjugated polymers with alternating electron-deficient BNBP unit and electron-rich bithiophene (BT) unit in the main chain. By changing the substitutes on BNBP or BT, the E-LUMO of these polymers can be finely tuned in a wide range from -3.3 eV to -3.7 eV. We comprehensively investigate the electronic structures, photophysical properties, charge-transporting properties and polymer solar cell (PSC) device applications of these polymers. In PSC devices, these BNBP-based polymers can be used either as electron donors (with high-lying kumo/EHomo) or as electron acceptors (with low-lying E-LUMO/E-HOMO). The PSC device with the BNBP-based polymer donor exhibits a PCE of 2.92% and the PSC device with the BNBP-based polymer acceptor exhibits a PCE of 5.16%. These results indicate a new approach to modulate the LUMO energy levels of D-A type conjugated polymers by modifications on both D unit and A unit. |
| 语种 | 英语 |
| WOS记录号 | WOS:000415911100024 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/45105]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Liu, Jun |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Changchun Inst Appl Chem, Changchun 130022, Jilin, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100864, Peoples R China |
| 推荐引用方式 GB/T 7714 | Long, Xiaojing,Dou, Chuandong,Liu, Jun,et al. Fine-Tuning LUMO Energy Levels of Conjugated Polymers Containing a B <- N Unit[J]. MACROMOLECULES,2017,50(21):8521-8528. |
| APA | Long, Xiaojing,Dou, Chuandong,Liu, Jun,&Wang, Lixiang.(2017).Fine-Tuning LUMO Energy Levels of Conjugated Polymers Containing a B <- N Unit.MACROMOLECULES,50(21),8521-8528. |
| MLA | Long, Xiaojing,et al."Fine-Tuning LUMO Energy Levels of Conjugated Polymers Containing a B <- N Unit".MACROMOLECULES 50.21(2017):8521-8528. |
入库方式： OAI收割
来源：化学研究所
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