An asymmetrical thieno[2,3-f] benzofuran (TBF)-based conjugated polymer for organic solar cells with high fill factor
文献类型：期刊论文
| 作者 | He, Dingjun1; Qiu, Lixia1; Yuan, Jun1; Zhang, Zhi-Guo2; Li, Yongfang2; Zou, Yingping1,3 |
| 刊名 | POLYMER
 |
| 出版日期 | 2017-04-07 |
| 卷号 | 114页码:348-354 |
| 关键词 | Alkylthio Phenyl Substitution Thieno[2 Electron Transporting Layer 3-f] Benzofuran Organic Solar Cells |
| 英文摘要 | An asymmetrical building block-TBF modified with alkylthio phenyl as the side chain, polymerization with 4, 7-di (5-bromothiophen-2-yl)-5, 6-dioctyloxybenzo[c] [1,2,5] thiadiazole (BT), a new polymer-TBFPS-BT was obtained. As described in the UV-Vis spectrum, TBFPS-BT exhibited good absorption covering from 300 to 750 nm. Benefited from the alkylthio phenyl substitution, the polymer possessed deep HOMO level of 5.39 eV. The photoluminescence (PL) spectra indicated the generated excitons could be almost completely dissociation at the polymer/PC71BM interface. Furthermore, the high and balanced mobility (1.49 x 10(-4) cm(2) V-1 s(-1) for hole and 1.07 x 10(-4) cm(2) V-1 s(-1) for electron) greatly contributed to enhance the fill factor (FF) and short-circuit current density (J(sc)) of device. PSC with different electron transporting layers (ETLs) were investigated, the results showed that when using perylene diimide (PDI) derivative with amino terminal substituent (PDIN) as ETL companied with 2% 1,8-Diiodooctane (DIO), the device delivered a best PCE of 6.55% (V-oc = 0.8 V, J(sc) = 11.93 mA cm(-2) and FF = 0.69). It is worth noting that all of the devices with ETLs and 2% DIO have shown high FFs over 0.65. So, the suitable modification on TBF and selection of ETLs were valid methods to improve device efficiency. (C) 2017 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38083]  |
| 专题 | 化学研究所_有机固体实验室 |
| 作者单位 | 1.Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China 2.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100190, Peoples R China 3.Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Dingjun,Qiu, Lixia,Yuan, Jun,et al. An asymmetrical thieno[2,3-f] benzofuran (TBF)-based conjugated polymer for organic solar cells with high fill factor[J]. POLYMER,2017,114:348-354. |
| APA | He, Dingjun,Qiu, Lixia,Yuan, Jun,Zhang, Zhi-Guo,Li, Yongfang,&Zou, Yingping.(2017).An asymmetrical thieno[2,3-f] benzofuran (TBF)-based conjugated polymer for organic solar cells with high fill factor.POLYMER,114,348-354. |
| MLA | He, Dingjun,et al."An asymmetrical thieno[2,3-f] benzofuran (TBF)-based conjugated polymer for organic solar cells with high fill factor".POLYMER 114(2017):348-354. |
入库方式： OAI收割
来源：化学研究所
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