Efficient Non-doped Near Infrared Organic Light-Emitting Devices Based on Fluorophores with Aggregation-Induced Emission Enhancement
文献类型：期刊论文
| 作者 | Du, Xiaobo1,3; Qi, Ji1,3; Zhang, Zhiqiang1; Ma, Dongge1; Wang, Zhi Y.1,2 |
| 刊名 | CHEMISTRY OF MATERIALS
 |
| 出版日期 | 2012-06-12 |
| 卷号 | 24期号:11页码:2178-2185 |
| 关键词 | Near Infrared Aiee Oleds Donor-acceptor |
| ISSN号 | 0897-4756 |
| DOI | 10.1021/cm3008733 |
| 英文摘要 | A family of donor-acceptor-donor (D-A-D) type near-infrared (NIR) fluorophores containing rigid nonplanar conjugated tetraphenylethene (TPE) moieties was designed and synthesized through Stifle coupling reactions with electron-deficient [1,2,5]thiadiazolo[3,4-g]quinoxaline (QTD) or benzo[1,2-c;4,5-c']bis[1,2,5]thiadiazole (BBTD) as acceptors. The absorption, fluorescence, and electrochemical properties were studied. These compounds exhibited good aggregation-induced emission enhancement (AIEE) property, as a result of the twisted TPE units, which restrict the intramolecular rotation and reduce the pi-pi stacking. Photoluminescence of these chromophores ranges from 600 to 1100 nm, and their HOMO-LUMO gaps are between 1.85 and 1.50 eV. Non-doped organic light-emitting diodes (OLEDs) based on these fluorophores were made and exhibited EL emission spectra peaking from 706 to 864 nm. The external quantum efficiency (EQE) of these devices ranged from 0.89% to 0.20% and remained fairly constant over a range of current density of 100-300 mA cm(-2). The device with the highest solid fluorescence efficiency emitter la shows the best performance with a maximum radiance of 2917 mW Sr-1 m(-2) and EQE of 0.89%. A contrast between nondoped and doped OLEDs with these materials confirms that AIEE compounds are suitable for fabricate efficient nondoped NIR OLEDs. |
| 语种 | 英语 |
| WOS记录号 | WOS:000305092600026 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/49233]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang, Zhi Y. |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Carleton Univ, Dept Chem, Ottawa, ON K1S 5B6, Canada 3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Du, Xiaobo,Qi, Ji,Zhang, Zhiqiang,et al. Efficient Non-doped Near Infrared Organic Light-Emitting Devices Based on Fluorophores with Aggregation-Induced Emission Enhancement[J]. CHEMISTRY OF MATERIALS,2012,24(11):2178-2185. |
| APA | Du, Xiaobo,Qi, Ji,Zhang, Zhiqiang,Ma, Dongge,&Wang, Zhi Y..(2012).Efficient Non-doped Near Infrared Organic Light-Emitting Devices Based on Fluorophores with Aggregation-Induced Emission Enhancement.CHEMISTRY OF MATERIALS,24(11),2178-2185. |
| MLA | Du, Xiaobo,et al."Efficient Non-doped Near Infrared Organic Light-Emitting Devices Based on Fluorophores with Aggregation-Induced Emission Enhancement".CHEMISTRY OF MATERIALS 24.11(2012):2178-2185. |
入库方式： OAI收割
来源：化学研究所
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