Chlorine substituted 2D-conjugated polymer for high-performance polymer solar cells with 13.1% efficiency via toluene processing
文献类型：期刊论文
| 作者 | Fan, Qunping1; Zhu, Qinglian2; Xu, Zhuo1; Su, Wenyan1; Chen, Juan1; Wu, Jingnan1; Guo, Xia1; Ma, Wei2; Zhang, Maojie1; Li, Yongfang1,3 |
| 刊名 | NANO ENERGY
 |
| 出版日期 | 2018-06-01 |
| 卷号 | 48页码:413-420 |
| 关键词 | Chlorine Substituted Conjugated Polymers Benzodithiophene Polymer Solar Cells Power Conversion Efficiency |
| ISSN号 | 2211-2855 |
| DOI | 10.1016/j.nanoen.2018.04.002 |
| 英文摘要 | In the past few years, fluorine atom has been widely introduced into organic semiconductor (OS) materials to improve the photovoltaic performance of polymer solar cells (PSCs). In contrast, chlorine atom is rarely concerned, although it is also a halogen element and is more easily introduced into OS materials. Herein, we designed and synthesized a new D-A-type two-dimension (2D)-conjugated polymer, PM7, containing a chlorinated-thienyl benzodithiophene (BDT-2Cl) donor unit and a benzodithiophene-4,8-dione acceptor unit. Compared to the control polymer PBDB-T without chlorine substitution, PM7 shows lower HOMO energy level, higher absorption coefficient, enhanced crystallinity and higher carrier mobility. Moreover, the toluene-processed PSCs based on PM7 as donor and small molecule n-OS IT-4F as acceptor achieved a high power conversion efficiency (PCE) of 13.1% with high open-circuit voltage (V-oc) of 0.88 V, short-circuit current density (J(sc)) of 20.9 mA cm(-2) and fill factor (FF) of 71.1%, while the PBDB-T: IT-4F-based PSC only exhibited a low PCE of 5.8% with low V-oc of 0.67 V, J(sc) of 15.0 mA cm(-2) and FF of 57.6%. The PCE of 13.1% is among the highest values reported for the PSCs to date. These results indicate that the chlorine substitution is a simple and effective strategy to design high-performance conjugated polymer photovoltaic materials. |
| 语种 | 英语 |
| WOS记录号 | WOS:000432604600048 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/42703]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhang, Maojie |
| 作者单位 | 1.Soochow Univ, Coll Chem, Lab Adv Optoelect Mat, Chem Engn & Mat Sci, Suzhou 215123, Peoples R China 2.Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi, Peoples R China 3.Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, CAS Res Educ Ctr Excellence Mol Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fan, Qunping,Zhu, Qinglian,Xu, Zhuo,et al. Chlorine substituted 2D-conjugated polymer for high-performance polymer solar cells with 13.1% efficiency via toluene processing[J]. NANO ENERGY,2018,48:413-420. |
| APA | Fan, Qunping.,Zhu, Qinglian.,Xu, Zhuo.,Su, Wenyan.,Chen, Juan.,...&Li, Yongfang.(2018).Chlorine substituted 2D-conjugated polymer for high-performance polymer solar cells with 13.1% efficiency via toluene processing.NANO ENERGY,48,413-420. |
| MLA | Fan, Qunping,et al."Chlorine substituted 2D-conjugated polymer for high-performance polymer solar cells with 13.1% efficiency via toluene processing".NANO ENERGY 48(2018):413-420. |
入库方式： OAI收割
来源：化学研究所
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