A new highly conjugated crossed benzodithiophene and its donor-acceptor copolymers for high open circuit voltages polymer solar cells
文献类型：期刊论文
| 作者 | Liu, Deyu1,2; Gu, Chunyang2; Xiao, Manjun2; Qiu, Meng2; Sun, Mingliang1; Yang, Renqiang2
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| 刊名 | POLYMER CHEMISTRY
 |
| 出版日期 | 2015 |
| 卷号 | 6期号:18页码:3398-3406 |
| 英文摘要 | A novel benzodithiophene-substituted benzodithiophene (crossed-BDT) with an enlarged conjugated skeleton was designed and synthesized as an electron-rich unit for the construction of donor-acceptor copolymers. Different acceptors, including 4,7-di(thiophen-2-yl)-2,1,3-benzothiadiazole (DTBT) and 4,7-di(thiophen-2-yl)-5,6-difluoro-2,1,3-benzothiadiazole (DTffBT) were used as electron-deficient units for the target copolymers to investigate the effect of the inclusion of two fluorine atoms on the acceptor unit of the polymer. The crossed-BDT and DTBT based polymers show high open circuit voltages (V-oc) of over 0.9 V with the decent power conversion efficiency (PCE) of 3.74%. The crossed-BDT and DTffBT based polymers show nearly 1 V (0.95 V) V-oc due to the fluorine induced low-lying HOMO energy level. The 0.9-0.95 V is an impressive V-oc result for a 1.7 eV band gap (E-g) polymer. To the best of our knowledge, this is the first report about a crossed conjugated benzodithiophene building block design, and this building block is effective in improving the V-oc of low band gap DBT polymers. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Polymer Science |
| 研究领域[WOS] | Polymer Science |
| 关键词[WOS] | POWER CONVERSION EFFICIENCY ; MOLECULAR-ENERGY LEVEL ; SEMICONDUCTING POLYMERS ; FLUORINATED BENZOTHIADIAZOLE ; PHOTOVOLTAIC PERFORMANCE ; MORPHOLOGY ; BANDGAP ; SUBSTITUENTS ; IMPROVE ; DESIGN |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000353643500005 |
| 公开日期 | 2015-12-24 |
| 源URL | [http://ir.qibebt.ac.cn/handle/337004/6451]  |
| 专题 | 青岛生物能源与过程研究所_先进有机功能材料团队 |
| 作者单位 | 1.Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266100, Peoples R China 2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biobased Mat, Qingdao 266101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Deyu,Gu, Chunyang,Xiao, Manjun,et al. A new highly conjugated crossed benzodithiophene and its donor-acceptor copolymers for high open circuit voltages polymer solar cells[J]. POLYMER CHEMISTRY,2015,6(18):3398-3406. |
| APA | Liu, Deyu,Gu, Chunyang,Xiao, Manjun,Qiu, Meng,Sun, Mingliang,&Yang, Renqiang.(2015).A new highly conjugated crossed benzodithiophene and its donor-acceptor copolymers for high open circuit voltages polymer solar cells.POLYMER CHEMISTRY,6(18),3398-3406. |
| MLA | Liu, Deyu,et al."A new highly conjugated crossed benzodithiophene and its donor-acceptor copolymers for high open circuit voltages polymer solar cells".POLYMER CHEMISTRY 6.18(2015):3398-3406. |
入库方式： OAI收割
来源：青岛生物能源与过程研究所
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