Novel carboxylated oligothiophenes as sensitizers in photoelectric conversion systems
文献类型：期刊论文
| 作者 | Tan, SX; Zhai, J; Fang, HJ; Jiu, TG; Ge, J; Li, YL; Jiang, L; Zhu, DB |
| 刊名 | CHEMISTRY-A EUROPEAN JOURNAL
 |
| 出版日期 | 2005-10-21 |
| 卷号 | 11期号:21页码:6272-6276 |
| 关键词 | Charge Transfer Energy Conversion Oligothiophenes Sensitizers Solar Cells |
| ISSN号 | 0947-6539 |
| DOI | 10.1002/chem.200500425 |
| 英文摘要 | Novel carboxylated oligothiophenes with different thiophene units were designed and synthesized as photosensitizers in dye-sensitized solar cells (DSSCs) for efficient opto-electric materials. The introduction of -COOH into thiophene molecules can lead to a red shift of UV-visible absorption, increase light-harvesting efficiency, and enhance photoinduced charge transport by forming efficient covalent bonds to the substrate surface. A red shift of the absorption spectrum of oligothiophene is also achieved by the increase in the number of thiophene units. The DSSCs based on the oligomers have excellent photovoltaic performances. Under 100 mWcm(-2) irradiation a short-circuit current of 10.57 mA cm(-2) and an overall energy conversion efficiency of 3.36% is achieved when pentathiophene dicarboxylated acid was used as a sensitizer. The incident photo-to-current conversion efficiency (IPCE) has a maximum as high as 80%. In addition, photovoltage and photocurrent transients show that slow charge recombination in DSSCs is important for efficient charge separation and excellent photoelectric conversion properties of the oligomers. These initial and promising results suggest that carboxylated oligothiophenes are efficient photosensitizers. |
| 语种 | 英语 |
| WOS记录号 | WOS:000232960500017 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/57743]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhai, J |
| 作者单位 | 1.Chinese Acad Sci, Ctr Mol Sci, Inst Chem, Beijing 100080, Peoples R China 2.Natl Ctr Nanosci & Technol, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tan, SX,Zhai, J,Fang, HJ,et al. Novel carboxylated oligothiophenes as sensitizers in photoelectric conversion systems[J]. CHEMISTRY-A EUROPEAN JOURNAL,2005,11(21):6272-6276. |
| APA | Tan, SX.,Zhai, J.,Fang, HJ.,Jiu, TG.,Ge, J.,...&Zhu, DB.(2005).Novel carboxylated oligothiophenes as sensitizers in photoelectric conversion systems.CHEMISTRY-A EUROPEAN JOURNAL,11(21),6272-6276. |
| MLA | Tan, SX,et al."Novel carboxylated oligothiophenes as sensitizers in photoelectric conversion systems".CHEMISTRY-A EUROPEAN JOURNAL 11.21(2005):6272-6276. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。