| Fluorene Side-Chained Benzodithiophene Polymers for Low Energy Loss Solar Cells | |
Song, Xin1; Zhang, Yongchao2; Li, Yonghai2; Li, Feng3; Bao, Xichang2 ; Ding, Dakang1; Sun, Mingliang1; Yang, Renqiang2
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| 2017-09-12 | |
| Source Publication | MACROMOLECULES
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| Volume | 50Issue:17Pages:6880-6887 |
| Abstract | Here we design and synthesize one novel fluorene side-chained benzodithiophene (BDT) monomer for polymer solar cells (PSCs) donor. By copolymerizing this monomer with 4,7-di(thiophen-2-yl)-2,1,3-benzothiadiazole (DTBT) or 4,7-di(4-(2ethylhexyl)-2-thienyl)-5,6-difluoro-2,1,3-benzothiadiazole (DTffBT), two donor acceptor (D-A) conjugated polymers PFBDT-DTBT and PFBDT-DTffBT are prepared. PSCs are prepared with these polymers as donor and PC71BM as acceptor. The maximum power conversion efficiency (PCE) of the two polymers PFBDT-DTBT and PFBDT-DTffBT based PSCs is 7.13% (V-OC = 0.90 V, J(SC) = 13.26 mA cm(-2), and FF = 0.598) and 7.33% (V-OC = 0.96 V, J(SC) = 13.24 mA cm(-2), and FF = 0.577). The UV-vis absorption and electrochemical cyclic voltammetry test results show that F atoms in DTffBT unit present an obvious influence on intermolecular effect and molecular energy levels of polymers. Furthermore, the energy loss of two PSCs devices in this work is confirmed to be 0.78 and 0.71 eV, lower than most results based on BDT PSCs devices, which is critical to obtain high PCE PSCs devices with a decent trade-off between J(SC) and V-OC. |
| Subtype | Article |
| WOS Headings | Science & Technology ; Physical Sciences |
| DOI | 10.1021/acs.macromol.7b00998 |
| WOS Keyword | POWER CONVERSION EFFICIENCY ; OPEN-CIRCUIT VOLTAGES ; CONJUGATED POLYMERS ; SEMICONDUCTING POLYMERS ; POLYFLUORENE COPOLYMER ; ORGANIC PHOTOVOLTAICS ; HOLE MOBILITY ; PERFORMANCE ; DONOR ; BENZOTHIADIAZOLE |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Polymer Science |
| Funding Organization | National Natural Science Foundation of China(51573205 ; 21502205 ; 21274134) |
| WOS Subject | Polymer Science |
| WOS ID | WOS:000410867400054 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qibebt.ac.cn/handle/337004/9576 |
| Collection | 先进有机功能材料研究组 |
| Affiliation | 1.Ocean Univ China, Inst Mat Sci & Engn, Qingdao 261000, Peoples R China 2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, Qingdao 266101, Peoples R China 3.Qingdao Univ Sci & Technol, Sch Polymer Sci & Engn, Minist Educ Shandong Prov, Key Lab Rubber Plast, 53 Zhengzhou Rd, Qingdao 266042, Peoples R China |
| Recommended Citation GB/T 7714 | Song, Xin,Zhang, Yongchao,Li, Yonghai,et al. Fluorene Side-Chained Benzodithiophene Polymers for Low Energy Loss Solar Cells[J]. MACROMOLECULES,2017,50(17):6880-6887. |
| APA | Song, Xin.,Zhang, Yongchao.,Li, Yonghai.,Li, Feng.,Bao, Xichang.,...&Yang, Renqiang.(2017).Fluorene Side-Chained Benzodithiophene Polymers for Low Energy Loss Solar Cells.MACROMOLECULES,50(17),6880-6887. |
| MLA | Song, Xin,et al."Fluorene Side-Chained Benzodithiophene Polymers for Low Energy Loss Solar Cells".MACROMOLECULES 50.17(2017):6880-6887. |
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