Highly efficient red electroluminescent polymers with dopant/host system and molecular dispersion feature: polyfluorene as the host and 2,1,3-benzothiadiazole derivatives as the red dopant
文献类型：期刊论文
| 作者 | Liu, Jun1,2; Chen, Lei1,2; Shao, Shiyang1,2; Xie, Zhiyuan1; Cheng, Yanxiang1; Geng, Yanhou1; Wang, Lixiang1; Jing, Xiabin1; Wang, Fosong1 |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY
 |
| 出版日期 | 2008 |
| 卷号 | 18期号:3页码:319-327 |
| ISSN号 | 0959-9428 |
| DOI | 10.1039/b712562c |
| 英文摘要 | By selecting polyfluorene as the polymer host, choosing 2,1,3-benzothiadiazole derivative moieties as the red dopant units and covalently attaching 0.3 mol% of the dopant units to the side chain of the polymer host, we developed a novel series of red electroluminescent polymers of dopant/host system with molecular dispersion feature. Their EL spectra exhibited predominant red emission from the dopant units because of the energy transfer and charge trapping from the polymer backbone to the dopant units. The emission wavelength of the polymers could be tuned by modifying the chemical structures of the dopant units. Single-layer devices (device configuration: ITO/PEDOT : PSS/polymer/Ca/Al) of these polymers emitted red light with a peak at 615 nm, a luminous efficiency of 5.04 cd A(-1) and an external quantum efficiency of 3.47%, or emitted deep-red light with a peak at 650 nm, a luminous efficiency of 1.70 cd A(-1) and an external quantum efficiency of 2.75%. Their high EL efficiencies were due to the energy transfer and charge trapping from the host to the dopant units as well as the molecular dispersion of the dopant units in the host. Increase of the dopant unit content led to increased turn-on voltages and decreased EL efficiencies of the resulting devices. |
| 语种 | 英语 |
| WOS记录号 | WOS:000252048800009 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/65359]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang, Lixiang |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Jun,Chen, Lei,Shao, Shiyang,et al. Highly efficient red electroluminescent polymers with dopant/host system and molecular dispersion feature: polyfluorene as the host and 2,1,3-benzothiadiazole derivatives as the red dopant[J]. JOURNAL OF MATERIALS CHEMISTRY,2008,18(3):319-327. |
| APA | Liu, Jun.,Chen, Lei.,Shao, Shiyang.,Xie, Zhiyuan.,Cheng, Yanxiang.,...&Wang, Fosong.(2008).Highly efficient red electroluminescent polymers with dopant/host system and molecular dispersion feature: polyfluorene as the host and 2,1,3-benzothiadiazole derivatives as the red dopant.JOURNAL OF MATERIALS CHEMISTRY,18(3),319-327. |
| MLA | Liu, Jun,et al."Highly efficient red electroluminescent polymers with dopant/host system and molecular dispersion feature: polyfluorene as the host and 2,1,3-benzothiadiazole derivatives as the red dopant".JOURNAL OF MATERIALS CHEMISTRY 18.3(2008):319-327. |
入库方式： OAI收割
来源：化学研究所
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