Novel donor-acceptor polymers containing o-fluoro-p-alkoxyphenyl-substituted benzo[1,2-b:4,5-b ']dithiophene units for polymer solar cells with power conversion efficiency exceeding 9%
文献类型：期刊论文
| 作者 | Wang, N; Chen, WC; Shen, WF; Duan, LR; Qiu, M; Wang, JY; Yang, CM; Du, ZK; Yang, RQ |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2016 |
| 卷号 | 4期号:26页码:10212-10222 |
| ISSN号 | 2050-7488 |
| 通讯作者 | Yang, RQ (reprint author), Chinese Acad Sci, CAS Key Lab Biobased Mat, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China. ; Yang, RQ (reprint author), S China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangzhou 510641, Guangdong, Peoples R China. |
| 英文摘要 | In this work, a new electron-rich building block, o-fluoro-p-alkoxyphenyl-substituted benzo[1,2-b:4,5-b'] dithiophene (BDT) unit, has been used to construct donor (D)-acceptor (A) conjugated copolymers with electron-deficient units 5,6-difluoro-4,7-di(4-(2-ethylhexyl)-2-thienyl)-2,1,3-benzothiadiazole (C8DTBTff) and 5,6-difluoro-4,7-di(4-hexyl-2-thienyl)-2,1,3-benzothiadiazole (C6DTBTff), named P-o-FBDTP-C8DTBTff (P2) and P-o-FBDTP-C6DTBTff (P3), respectively. The experimental results indicate that the incorporation of fluorine into the ortho-position of the alkoxyphenyl substituted BDT unit can enable its resultant polymer to efficiently tune the energy levels and improve the mobility of the derived bulk heterojunction layer, which results in a much higher power conversion efficiency (PCE) of P2 (8.10%). Moreover, replacing the 2-ethylhexyl chains on the DTBTff unit with hexyl chains can improve the planarity of the conjugated backbone of the polymer, which makes the P3/PC71BM blends exhibit higher carrier mobility than P2/PC71BM. Finally, a PCE of 9.02% for the device of P3 is obtained without any additive treatment, which is the highest value achieved for the widely reported D-A polymers with fluorine substituted BDT as the electron-donor unit in single junction polymer solar cells. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000378742100021 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/26586]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Wang, N,Chen, WC,Shen, WF,et al. Novel donor-acceptor polymers containing o-fluoro-p-alkoxyphenyl-substituted benzo[1,2-b:4,5-b ']dithiophene units for polymer solar cells with power conversion efficiency exceeding 9%[J]. JOURNAL OF MATERIALS CHEMISTRY A,2016,4(26):10212-10222. |
| APA | Wang, N.,Chen, WC.,Shen, WF.,Duan, LR.,Qiu, M.,...&Yang, RQ.(2016).Novel donor-acceptor polymers containing o-fluoro-p-alkoxyphenyl-substituted benzo[1,2-b:4,5-b ']dithiophene units for polymer solar cells with power conversion efficiency exceeding 9%.JOURNAL OF MATERIALS CHEMISTRY A,4(26),10212-10222. |
| MLA | Wang, N,et al."Novel donor-acceptor polymers containing o-fluoro-p-alkoxyphenyl-substituted benzo[1,2-b:4,5-b ']dithiophene units for polymer solar cells with power conversion efficiency exceeding 9%".JOURNAL OF MATERIALS CHEMISTRY A 4.26(2016):10212-10222. |
入库方式： OAI收割
来源：上海应用物理研究所
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