Effect of furan pi-bridge on the photovoltaic performance of D-A copolymers based on bi(alkylthio-thienyl)benzodithiophene and fluorobenzotriazole
文献类型：期刊论文
| 作者 | Yan, Tinghai1,2; Bin, Haijun1,2; Yang, Yankang1,2; Xue, Lingwei2; Zhang, Zhi-Guo1; Li, Yongfang1,2,3 |
| 刊名 | SCIENCE CHINA-CHEMISTRY
 |
| 出版日期 | 2017-04-01 |
| 卷号 | 60期号:4页码:537-544 |
| 关键词 | Nonfullerene Polymer Solar Cells Conjugated D-a Copolymers Furan Pi-bridges |
| 英文摘要 | The medium band gap donor-acceptor (D-A) copolymer J61 based on bi(alkylthio-thienyl)benzodithiophene as donor unit and fluorobenzotriazole as acceptor unit and thiophene as pi-bridge has demonstrated excellent photovoltaic performance as donor material in nonfullerene polymer solar cells (PSCs) with narrow bandgap n-type organic semiconductor ITIC as acceptor. For studying the effect of pi-bridges on the photovoltaic performance of the D-A copolymers, here we synthesized a new D-A copolymer J61-F based on the same donor and acceptor units as J61 but with furan pi-bridges instead of thiophene. J61-F possesses a deeper the highest occupied molecular orbital (HOMO) level at -5.45 eV in comparison with that (-5.32 eV) of J61. The non-fullerene PSCs based on J61-F:ITIC exhibited a maximum power conversion efficiency (PCE) of 8.24% with a higher open-circuit voltage (V-oc) of 0.95 V, which is benefitted from the lower-lying HOMO energy level of J61-F donor material. The results indicate that main chain engineering by changing pi-bridges is another effective way to tune the electronic energy levels of the conjugated D-A copolymers for the application as donor materials in non-fullerene PSCs. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38348]  |
| 专题 | 化学研究所_有机固体实验室 |
| 作者单位 | 1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Key Lab Organ Solids, Inst Chem, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China 3.Soochow Univ, Coll Chem Chem Engn & Mat Sci, Lab Adv Optoelect Mat, Suzhou 215123, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Tinghai,Bin, Haijun,Yang, Yankang,et al. Effect of furan pi-bridge on the photovoltaic performance of D-A copolymers based on bi(alkylthio-thienyl)benzodithiophene and fluorobenzotriazole[J]. SCIENCE CHINA-CHEMISTRY,2017,60(4):537-544. |
| APA | Yan, Tinghai,Bin, Haijun,Yang, Yankang,Xue, Lingwei,Zhang, Zhi-Guo,&Li, Yongfang.(2017).Effect of furan pi-bridge on the photovoltaic performance of D-A copolymers based on bi(alkylthio-thienyl)benzodithiophene and fluorobenzotriazole.SCIENCE CHINA-CHEMISTRY,60(4),537-544. |
| MLA | Yan, Tinghai,et al."Effect of furan pi-bridge on the photovoltaic performance of D-A copolymers based on bi(alkylthio-thienyl)benzodithiophene and fluorobenzotriazole".SCIENCE CHINA-CHEMISTRY 60.4(2017):537-544. |
入库方式： OAI收割
来源：化学研究所
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