Photocurrent Enhancement of BODIPY-Based Solution-Processed Small-Molecule Solar Cells by Dimerization via the Meso Position
文献类型：期刊论文
| 作者 | Liu, Wenxu; Tang, Ailing; Chen, Jianwei; Wu, Yishi; Zhan, Chuanlang; Yao, Jiannian |
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | DEC 24 2014 |
| 卷号 | 6期号:24页码:22496-22505 |
| 英文摘要 | Monoamine 1, diamines 2-4, triamine 5, and tetraamine 6 have been synthesized by substituting dianisylamino groups at the 1-, 3-, 6-, and/or 8-positions of pyrene. Diamines 2-4 differ in the positions of the amine substituents. No pyrene-pyrene interactions are evident in the single-crystal packing of 3, 4, and 6. With increasing numbers of amine substituents, the first oxidation potential decreases progressively from the mono-to the tetraamine. These compounds show intense charge-transfer (CT) emission in CH2Cl2 at around 530 nm with quantum yields of 48-68 %. Upon step-wise oxidation by electrolysis or chemical oxidation, these compounds were transformed into radical cations 1(+)-6(+) and dications 2(2+)-6(2+), which feature strong visible and near-infrared absorptions. Time-dependent density functional theory studies suggested the presence of localized transitions from the pyrene radical cation and aminium radical cation, intervalence CT, and CT between the pyrene and amine moieties. Spectroscopic studies indicated that these radical cations and dications have good stability. Triamine 5 and tetraamine 6 formed efficient CT complexes with tetracyanoquinodimethane in solution. The results of EPR spectroscopy and density functional theory calculations suggested that the dications 2(2+)-4(2+) have a triplet ground state, whereas 5(2+) and 6(2+) have a singlet ground state. The dication of 1,3-disubstituted diamine 4 exhibits a strong EPR signal. |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38565]  |
| 专题 | 化学研究所_其它 |
| 推荐引用方式 GB/T 7714 | Liu, Wenxu,Tang, Ailing,Chen, Jianwei,et al. Photocurrent Enhancement of BODIPY-Based Solution-Processed Small-Molecule Solar Cells by Dimerization via the Meso Position[J]. ACS APPLIED MATERIALS & INTERFACES,DEC ,6(24):22496-22505. |
| APA | Liu, Wenxu,Tang, Ailing,Chen, Jianwei,Wu, Yishi,Zhan, Chuanlang,&Yao, Jiannian.(DEC ).Photocurrent Enhancement of BODIPY-Based Solution-Processed Small-Molecule Solar Cells by Dimerization via the Meso Position.ACS APPLIED MATERIALS & INTERFACES,6(24),22496-22505. |
| MLA | Liu, Wenxu,et al."Photocurrent Enhancement of BODIPY-Based Solution-Processed Small-Molecule Solar Cells by Dimerization via the Meso Position".ACS APPLIED MATERIALS & INTERFACES 6.24(DEC ):22496-22505. |
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。