Synthesis and photovoltaic properties of 4,9-dithien-2 '-yl-2,1,3-naphthothiadiazole-based D-A copolymers
文献类型：期刊论文
| 作者 | Shen, Ping1,2,3; Bin, Haijun1; Chen, Lixia1,2,3; Zhang, Zhi-Guo1; Li, Yongfang1 |
| 刊名 | POLYMER
 |
| 出版日期 | 2015-11-19 |
| 卷号 | 79页码:119-127 |
| 关键词 | D-A conjugated copolymers 4 Polymer solar cells 9-dithien-2 '-yl-2 1 3-naphthothiadiazole |
| 英文摘要 | A series of donor-acceptor (D-A) conjugated copolymers (PBDTNT, PCDTNT, PFDTNT, and PNDTNT) based on a new acceptor unit of 4,9-dithien-2'-yl-2,1,3-naphthothiadiazole (DTNT) and different donor unit of benzodithiophene, carbazole, fluorene, or naphthalene, were synthesized and characterized as donor in polymer solar cells (PSCs). The effect of different donor units on the physicochemical properties of the polymers was investigated systematically. The copolymers showed relatively low-lying HOMO energy levels of around -5.45 eV, which is favorable for achieving high open-circuit voltage (V-oc). The photovoltaic properties of these copolymers were studied by fabricating the PSCs with the polymer as donor and PC70BM as acceptor. PSCs based on PBDTNT:PC70BM (1:4, w/w) exhibited a power conversion efficiency (PCE) of 2.73%, a high V-oc of 0.90 V, a short-circuit current density (J(sc)) of 9.45 mA cm(-2), and a fill factor of 32.1% via optimizing the device fabrication conditions, including the polymer/PC70BM blend ratio, solvent additive and treatment with methanol. With the same fabrication method, PSCs based on PCDTNT, PFDTNT, and PNDTNT showed PCEs of 2.26, 1.57 and 1.45%, and high V-oc values of 0.90, 0.92 and 0.92 V, respectively. Crown Copyright (C) 2015 Published by Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/29289]  |
| 专题 | 化学研究所_有机固体实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Key Lab Organ Solids, Beijing 100190, Peoples R China 2.Xiangtan Univ, Coll Chem, Xiangtan 411105, Peoples R China 3.Xiangtan Univ, Key Lab Environm Friendly Chem & Applicat, Minist Educ, Xiangtan 411105, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shen, Ping,Bin, Haijun,Chen, Lixia,et al. Synthesis and photovoltaic properties of 4,9-dithien-2 '-yl-2,1,3-naphthothiadiazole-based D-A copolymers[J]. POLYMER,2015,79:119-127. |
| APA | Shen, Ping,Bin, Haijun,Chen, Lixia,Zhang, Zhi-Guo,&Li, Yongfang.(2015).Synthesis and photovoltaic properties of 4,9-dithien-2 '-yl-2,1,3-naphthothiadiazole-based D-A copolymers.POLYMER,79,119-127. |
| MLA | Shen, Ping,et al."Synthesis and photovoltaic properties of 4,9-dithien-2 '-yl-2,1,3-naphthothiadiazole-based D-A copolymers".POLYMER 79(2015):119-127. |
入库方式： OAI收割
来源：化学研究所
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