Solution-processable tetrazine and oligothiophene based linear A-D-A small molecules: Synthesis, hierarchical structure and photovoltaic properties
文献类型：期刊论文
| 作者 | Chen, LW(陈立桅)
|
| 刊名 | ORGANIC ELECTRONICS
 |
| 出版日期 | 2013-05 |
| 卷号 | 14期号:5页码:1424-1434 |
| 关键词 | Oligothiophene A-D-A small molecule Crystallization Hierarchical structure Photovoltaic cell |
| 通讯作者 | Tu, YF |
| 英文摘要 | A series of high coplanar alternative linear small molecules with acceptor-donor-acceptor (A-D-A) structure containing electron-accepting tetrazine (Tz) moiety and electron-donating oligothiophe nes (OTs) moiety, alkylated thiophene attached to both sides of the Tz moiety were designed and synthesized. The influences of varied oligothiophe ne length on small molecules' optical and electrochemical properties, crystallization, self assembling morphology in blend film with (6,6)-phenyl-C-61-butyric acid methyl ester (PC61BM), and photovoltai c properties for the application as donor materials in organic solar cells (OSCs) were studied. The optical and electrochemical properties of small molecules showed that the HOMO and LUMO energy levels were determined by the number of OTs moiety and electron-accepting ability of Tz in the alternative small molecules, respectively. Meanwhile, the varied OT moieties can significantly affect the hierarchical structures when mixed with PC61BM. The molecule with intermediate conjugate moity length showed the highest ordering in its crystalline state, as revealed by differential scannin gcalorimetry (DSC) and X-ray diffraction experiments, and best photovoltaic properties when blended together with PC61BM or (6,6)-phenyl-C-71-butyric acid methyl ester (PC71BM) as active layer in photovoltaic devices. The results indicate that hierarchical structures controlled by adjusting the conjugate moity length of small molecules is an effective way to improve the performance of OSCs. The photovoltaic device based on TT(HTTzHT)(2): PC71BM with 1% DIO additives showed the best performance, with a J(sc) of 7.87 mA/cm(2) and a PCE of 3.24%. |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000317825800029 |
| 公开日期 | 2014-01-15 |
| 源URL | [http://ir.sinano.ac.cn/handle/332007/1400]  |
| 专题 | 苏州纳米技术与纳米仿生研究所_纳米研究国际实验室_陈立桅团队 |
| 推荐引用方式 GB/T 7714 | Chen, LW. Solution-processable tetrazine and oligothiophene based linear A-D-A small molecules: Synthesis, hierarchical structure and photovoltaic properties[J]. ORGANIC ELECTRONICS,2013,14(5):1424-1434. |
| APA | Chen, LW.(2013).Solution-processable tetrazine and oligothiophene based linear A-D-A small molecules: Synthesis, hierarchical structure and photovoltaic properties.ORGANIC ELECTRONICS,14(5),1424-1434. |
| MLA | Chen, LW."Solution-processable tetrazine and oligothiophene based linear A-D-A small molecules: Synthesis, hierarchical structure and photovoltaic properties".ORGANIC ELECTRONICS 14.5(2013):1424-1434. |
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