Improved photovoltaic performance of a 2D-conjugated benzodithiophene-based polymer by the side chain engineering of quinoxaline
文献类型：期刊论文
| 作者 | Fan, Qunping1; Xiao, Manjun1; Liu, Yu1; Su, Wenyan1; Gao, Huishan1; Tan, Hua1; Wang, Yafei1; Lei, Gangtie1; Yang, Renqiang2 ; Zhu, Weiguo1
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| 刊名 | POLYMER CHEMISTRY
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| 出版日期 | 2015 |
| 卷号 | 6期号:23页码:4290-4298 |
| 英文摘要 | To investigate the influence of side chains of quinoxaline on the photovoltaic performances, a novel D-A-type polymer of PBDTDT(Qx-3)-T was synthesized and characterized, in which 5,8-dioctylthienyl substituted benzo[1,2-b: 4,5-b']dithiophene (BDT-T), thiophene (T) and 6,7-dioctyloxy-2,3-diphenylquinoxaline (Qx-3) were used as the donor (D) unit, pi-bridge and acceptor (A) unit, respectively. The resulting polymer exhibited good thermal stability with a high decomposition temperature of 357 degrees C, a low optical bandgap of 1.78 eV with an absorption onset of 696 nm, a low-lying highest occupied molecular orbital (HOMO) energy level of -5.51 eV, and a high carrier mobility of 2.19 x 10(-4) cm(2) V-1 s(-1). Compared to the reported analogues, polymer solar cells (PSCs) based on PBDTDT(Qx-3)-T/PC71BM demonstrated the highest open-circuit voltages (V-oc) up to 0.96 V. The maximum power conversion efficiency (PCE) of 6.9% with a V-oc of 0.94 V, short-circuit current (J(sc)) of 11.28 mA cm(-2) and a fill factor (FF) of 64.7% was obtained with a delicate balance among the above factors for the polymer in PSCs. On the basis of these results, it can be concluded that the appending two octyloxy side chains at 6,7-positions of quinoxaline in the BDT-T-alt-DTQx type polymers would be a feasible approach to improve photovoltaic properties. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Polymer Science |
| 研究领域[WOS] | Polymer Science |
| 关键词[WOS] | OPEN-CIRCUIT VOLTAGE ; ORGANIC SOLAR-CELLS ; CONJUGATED POLYMERS ; CHARGE-TRANSFER ; COPOLYMERS ; EFFICIENCY ; QUINACRIDONE ; ORIENTATION ; SINGLE ; BENZO |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000355735300012 |
| 公开日期 | 2015-12-24 |
| 源URL | [http://ir.qibebt.ac.cn/handle/337004/6475]  |
| 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.Xiangtan Univ, Coll Chem, Key Lab Environm Friendly Chem & Applicat, Minist Educ, Xiangtan 411105, Peoples R China 2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fan, Qunping,Xiao, Manjun,Liu, Yu,et al. Improved photovoltaic performance of a 2D-conjugated benzodithiophene-based polymer by the side chain engineering of quinoxaline[J]. POLYMER CHEMISTRY,2015,6(23):4290-4298. |
| APA | Fan, Qunping.,Xiao, Manjun.,Liu, Yu.,Su, Wenyan.,Gao, Huishan.,...&Zhu, Weiguo.(2015).Improved photovoltaic performance of a 2D-conjugated benzodithiophene-based polymer by the side chain engineering of quinoxaline.POLYMER CHEMISTRY,6(23),4290-4298. |
| MLA | Fan, Qunping,et al."Improved photovoltaic performance of a 2D-conjugated benzodithiophene-based polymer by the side chain engineering of quinoxaline".POLYMER CHEMISTRY 6.23(2015):4290-4298. |
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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