High-Efficiency Red-Fluorescent Organic Light-Emitting Diodes with Excellent Color Purity
文献类型：期刊论文
| 作者 | Li, Zhiyi1,2,3; Hu, Xiaoxiao1,2,3; Liu, Guanhao1,2,3; Tian, Lei1,2,3; Gao, Honglei1,2,3; Dong, Xiangyu1,2,3; Gao, Teng1,2,3; Cao, Ming4; Lee, Chun-Sing5; Wang, Pengfei1,2,3 |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| 出版日期 | 2021-01-28 |
| 卷号 | 125期号:3页码:1980-1989 |
| ISSN号 | 1932-7447 |
| DOI | 10.1021/acs.jpcc.0c10769 |
| 通讯作者 | Wang, Ying(wangy@mail.ipc.ac.cn) |
| 英文摘要 | Thermally activated delayed fluorescence (TADF)-sensitized fluorescent OLEDs are promising for next-generation OLEDs. However, the performance of these OLEDs with deviated CIE coordinates from the fluorescent emitters is still unsatisfactory due to the insufficient Forster resonance energy transfer (FRET). Here we report a rational strategy to construct a highly efficient TADF-sensitized fluorescent OLED system by the dedicated selection of the host and the TADF sensitizer. Benefiting from the efficient energy-transfer process from TXO-TPA to DBP, the TADF-sensitized fluorescent OLEDs exhibited a maximum EQE of 16.9%. Furthermore, a new factor, the sensitization efficiency (SE), was first introduced to quantitatively evaluate the contribution of the fluorescent emission. A high SE up to 96.4% can be achieved for the reported OLEDs with CIE coordinates of (0.65, 0.35), which are very close to the standard red CIE coordinates of (0.67, 0.33). Our discussion will aid in the design and evaluation of more efficient TADF-sensitized fluorescent OLEDs. |
| WOS关键词 | ACTIVATED DELAYED FLUORESCENCE ; ELECTROLUMINESCENCE EFFICIENCY ; QUANTUM EFFICIENCY ; MOLECULAR DESIGN ; TRIPLET EXCITONS ; SINGLET ; TADF ; BLUE |
| 资助项目 | National Science Foundation of China[9183304] ; National Science Foundation of China[61420106002] ; National Science Foundation of China[21772209] ; National Key Research and Development Project[2017YFA0204502] ; National Key Research and Development Project[2016YFB0401004] ; National Program for Support of Top-notch Young Professionals |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| WOS记录号 | WOS:000614317500038 |
| 资助机构 | National Science Foundation of China ; National Key Research and Development Project ; National Program for Support of Top-notch Young Professionals |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/160521]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Ying |
| 作者单位 | 1.Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Photochem Convers & Optoelect Mat, Beijing 1100190, Peoples R China 2.Chinese Acad Sci, Tech Inst Phys & Chem, CityU CAS Joint Lab Funct Mat & Devices, Beijing 1100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 5.City Univ Hong Kong, Ctr Super Diamond & Adv Films COSDAF, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Zhiyi,Hu, Xiaoxiao,Liu, Guanhao,et al. High-Efficiency Red-Fluorescent Organic Light-Emitting Diodes with Excellent Color Purity[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2021,125(3):1980-1989. |
| APA | Li, Zhiyi.,Hu, Xiaoxiao.,Liu, Guanhao.,Tian, Lei.,Gao, Honglei.,...&Wang, Ying.(2021).High-Efficiency Red-Fluorescent Organic Light-Emitting Diodes with Excellent Color Purity.JOURNAL OF PHYSICAL CHEMISTRY C,125(3),1980-1989. |
| MLA | Li, Zhiyi,et al."High-Efficiency Red-Fluorescent Organic Light-Emitting Diodes with Excellent Color Purity".JOURNAL OF PHYSICAL CHEMISTRY C 125.3(2021):1980-1989. |
入库方式： OAI收割
来源：地理科学与资源研究所
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