Photovoltaic properties of poly(benzothiadiazole-thiophene-co-bithiophene) as donor in polymer solar cells
文献类型：期刊论文
| 作者 | Zhao, Guangjin1,2; He, Youjun1; He, Chang1; Fan, Haijun1; Zhao, Yun1; Li, Yongfang1 |
| 刊名 | SOLAR ENERGY MATERIALS AND SOLAR CELLS
 |
| 出版日期 | 2011-02-01 |
| 卷号 | 95期号:2页码:704-711 |
| 关键词 | Polymer Solar Cells Low Bandgap Conjugated Polymers Conjugated Polymer Photovoltaic Materials Additives Thermal Annealing |
| ISSN号 | 0927-0248 |
| DOI | 10.1016/j.solmat.2010.10.007 |
| 英文摘要 | We report the photovoltaic properties of a D-A copolymer, poly(benzothiadiazole-thiophene-co-bithiophene) (PBTTbT), containing the donor (D) unit of oligothiophene with a hexyl side chain and the acceptor (A) unit of 2,1,3-benzothiadiazole (BT) with a methyl side chain. The geometry, electronic and absorption spectroscopic properties of bithiophene-benzothiadiazole-thiophene monomer (M1) of the polymer were investigated theoretically by the density functional theory (DFT) method for deep understanding the relationship of the structure and properties of the polymer. Polymer solar cells (PSCs) were fabricated with PBTTbT as an electron donor blended with [6,6]-phenyl-C71-butyric acid methyl ester (PC(70)BM) as an electron acceptor. The power conversion efficiency (PCE) of PSC is 0.87% for an optimized PBTTbT:PC(70)BM weight ratio of 1:3, under the illumination of AM 1.5, 100 mW/cm(2). With the additive of 1% 1,8-dioctanedithiol and thermal annealing at 130 degrees C for 15 min, the PCE of the device was improved to 1.98%. The efficiency improvement of the device was ascribed to a better morphology of the PBTTbT:PC(70)BM active layer with the additive and thermal annealing. (C) 2010 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000287006900045 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/73101]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Li, Yongfang |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 2.Henan Elect Power Res Inst, Zhengzhou 450052, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Guangjin,He, Youjun,He, Chang,et al. Photovoltaic properties of poly(benzothiadiazole-thiophene-co-bithiophene) as donor in polymer solar cells[J]. SOLAR ENERGY MATERIALS AND SOLAR CELLS,2011,95(2):704-711. |
| APA | Zhao, Guangjin,He, Youjun,He, Chang,Fan, Haijun,Zhao, Yun,&Li, Yongfang.(2011).Photovoltaic properties of poly(benzothiadiazole-thiophene-co-bithiophene) as donor in polymer solar cells.SOLAR ENERGY MATERIALS AND SOLAR CELLS,95(2),704-711. |
| MLA | Zhao, Guangjin,et al."Photovoltaic properties of poly(benzothiadiazole-thiophene-co-bithiophene) as donor in polymer solar cells".SOLAR ENERGY MATERIALS AND SOLAR CELLS 95.2(2011):704-711. |
入库方式： OAI收割
来源：化学研究所
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