Changchun Institute of Optics,Fine Mechanics and Physics,CAS
Harvesting Triplet Excitons with Exciplex Thermally Activated Delayed Fluorescence Emitters toward High Performance Heterostructured Organic Light-Emitting Field Effect Transistors | |
Song, L.; Y. S. Hu; Z. Q. Liu; Y. Lv; X. Y. Guo and X. Y. Liu | |
2017 | |
发表期刊 | Acs Applied Materials & Interfaces
![]() |
卷号 | 9期号:3 |
摘要 | The utilization of triplet excitons plays a key role in obtaining high emission efficiency for organic electroluminescent devices. However, to date, only phosphorescent materials have been implemented to harvest the triplet excitons in the organic light-emitting field effect transistors (OLEFETs). In this work, we report the first incorporation of exciplex thermally activated delayed fluorescence (TADF) emitters in heterostructured OLEFETs to harvest the triplet excitons. By developing a new kind of exciplex TADF emitter constituted by m-MTDATA (4,4',4 ''-tris (N-3-methylphenyl-N-phenylamino)triphenylamine) a as the donor and OXD-7 (1,3-bis[2-(4-tert-butylpheny1)-1,3,4-oxadiazo-5-yl]benzene) as the acceptor, an exciton utilization efficiency of 74.3% for the devices was achieved. It is found that the injection barrier between hole transport layer and emission layer as well as the ratio between donor and acceptor would influence the external quantum efficiency (EQE) significantly. Devices with a maximum EQE of 3.76% which is far exceeding the reported results for devices with conventional fluorescent emitters were successfully demonstrated. Moreover, the EQE at high brightness even outperformed the result for organic light emitting diode based on the same emitter. Our results demonstrate that the exciplex TADF emitters can be promising candidates to develop OLEFETs with high performance. |
收录类别 | sci ; ei |
语种 | 英语 |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ciomp.ac.cn/handle/181722/59193 |
专题 | 中科院长春光机所知识产出 |
推荐引用方式 GB/T 7714 | Song, L.,Y. S. Hu,Z. Q. Liu,et al. Harvesting Triplet Excitons with Exciplex Thermally Activated Delayed Fluorescence Emitters toward High Performance Heterostructured Organic Light-Emitting Field Effect Transistors[J]. Acs Applied Materials & Interfaces,2017,9(3). |
APA | Song, L.,Y. S. Hu,Z. Q. Liu,Y. Lv,&X. Y. Guo and X. Y. Liu.(2017).Harvesting Triplet Excitons with Exciplex Thermally Activated Delayed Fluorescence Emitters toward High Performance Heterostructured Organic Light-Emitting Field Effect Transistors.Acs Applied Materials & Interfaces,9(3). |
MLA | Song, L.,et al."Harvesting Triplet Excitons with Exciplex Thermally Activated Delayed Fluorescence Emitters toward High Performance Heterostructured Organic Light-Emitting Field Effect Transistors".Acs Applied Materials & Interfaces 9.3(2017). |
条目包含的文件 | 下载所有文件 | |||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Harvesting Triplet E(2342KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论