Poly(spirobifluorene)s Containing Nonconjugated Diphenylsulfone Moiety: Toward Blue Emission Through a Weak Charge Transfer Effect
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 | MACROMOLECULES
 |
| 出版日期 | 2014-05-13 |
| 卷号 | 47期号:9页码:2907-2914 |
| ISSN号 | 0024-9297 |
| DOI | 10.1021/ma500407m |
| 英文摘要 | Instead of conjugated dibenzothiophene-S,S-dioxide (DBTSO), we have introduced nonconjugated diphenylsulfone (DPSO) as the electron-deficient unit into the main chain of poly(spirobifluorene)s (PSFs). Because of the weaker electron affinity of DPSO relative to DBTSO, the charge transfer from the pendant 2,3,6,7-tetraoctyloxyfluorene to the main chain can be effectively prevented. Consequently, the resultant polymers containing DPSO moiety show pure blue emissions, which is different from DBTSO-based PSFs that exhibit undesired green emissions. With a single-layer device configuration, a peak luminous efficiency of 2.90 cd/A and a maximum luminescence of 14130 cd/m(2) have been realized for the polymer PSFDPSO03. The corresponding CIE coordinates are (0.17, 0.18), nearly independent of the applied current density from 2 to 592 mA/cm(2). These results indicate that tuning the electron affinity of the incorporated electron-deficient units is a very promising strategy to control the charge transfer strength for the development of blue-emitting PSFs with high efficiency and stability. |
| 语种 | 英语 |
| WOS记录号 | WOS:000336020900017 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/49991]  |
| 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. Poly(spirobifluorene)s Containing Nonconjugated Diphenylsulfone Moiety: Toward Blue Emission Through a Weak Charge Transfer Effect[J]. MACROMOLECULES,2014,47(9):2907-2914. |
| APA | Wang, Xuchao.,Zhao, Lei.,Shao, Shiyang.,Ding, Junqiao.,Wang, Lixiang.,...&Wang, Fosong.(2014).Poly(spirobifluorene)s Containing Nonconjugated Diphenylsulfone Moiety: Toward Blue Emission Through a Weak Charge Transfer Effect.MACROMOLECULES,47(9),2907-2914. |
| MLA | Wang, Xuchao,et al."Poly(spirobifluorene)s Containing Nonconjugated Diphenylsulfone Moiety: Toward Blue Emission Through a Weak Charge Transfer Effect".MACROMOLECULES 47.9(2014):2907-2914. |
入库方式： OAI收割
来源：化学研究所
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