Tunable charge transfer effect in poly-(spirobifluorene)s with different electron-rich side chains
文献类型：期刊论文
| 作者 | Wang, Xuchao1,2; Zhao, Lei1,2; Shao, Shiyang1; Ding, Junqiao1; Wang, Lixiang1; Jing, Xiabin1; Wang, Fosong1 |
| 刊名 | POLYMER CHEMISTRY
 |
| 出版日期 | 2014-11-21 |
| 卷号 | 5期号:22页码:6444-6451 |
| ISSN号 | 1759-9954 |
| DOI | 10.1039/c4py00698d |
| 英文摘要 | A series of blue-emitting poly(spirobifluorene)s (PSFs), namely, Cz-PSF, 4RO-PSF and DPA-PSF, have been designed and synthesized by incorporating 2,7-bis(3,6-di-tert-butyl-9H-carbazol-9-yl)-9H-fluorene (CzF), 2,3,6,7-tetraoctyloxyfluorene (4ROF) and N, N', N'', N'''-tetrakis(4-butylphenyl)-9H-fluorene-2,7-diamine (DPAF) as their electron-rich side chains, respectively. Consistent with their measured HOMO levels (CzF: -5.40 eV; 4ROF: -5.17 eV; DPAF: -4.86 eV), the donor strength of the pendant is enhanced in the sequence CzF < 4ROF < DPAF. As a result, the charge transfer (CT) effect from the pendant to the backbone is found to be gradually intensified on going from Cz-PSF to 4RO-PSF and DPA-PSF. The emission maximum is accordingly red-shifted from 423 nm for Cz-PSF to 452 nm for 4RO-PSF and 482 nm for DPA-PSF, which is associated with a significant decrease in the photoluminescent quantum yields. Compared with 4RO-PSF, the copolymer Cz-PSF containing a weaker donor shows deep-blue emission with CIE coordinates of (0.16, 0.09-0.12) and a peak luminous efficiency of 2.21 cd A(-1). These results indicate that the CT effect can be effectively tuned to realize high-performance deep-blue-emitting PSFs by the manipulation of the electron-donating ability of their spiro-conjugated side chains. |
| 语种 | 英语 |
| WOS记录号 | WOS:000343703900007 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/52179]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Ding, Junqiao |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xuchao,Zhao, Lei,Shao, Shiyang,et al. Tunable charge transfer effect in poly-(spirobifluorene)s with different electron-rich side chains[J]. POLYMER CHEMISTRY,2014,5(22):6444-6451. |
| APA | Wang, Xuchao.,Zhao, Lei.,Shao, Shiyang.,Ding, Junqiao.,Wang, Lixiang.,...&Wang, Fosong.(2014).Tunable charge transfer effect in poly-(spirobifluorene)s with different electron-rich side chains.POLYMER CHEMISTRY,5(22),6444-6451. |
| MLA | Wang, Xuchao,et al."Tunable charge transfer effect in poly-(spirobifluorene)s with different electron-rich side chains".POLYMER CHEMISTRY 5.22(2014):6444-6451. |
入库方式： OAI收割
来源：化学研究所
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