Low efficiency roll-off and high color stability pure fluorescent white organic light-emitting diode based exciplex host
文献类型：期刊论文
| 作者 | Zhang, H. ; Wang, Z. Q.; Gao, L.; Zhao, B.; Li, W. L.
|
| 刊名 | Rsc Advances
 |
| 出版日期 | 2018 |
| 卷号 | 8期号:2页码:954-959 |
| 关键词 | activated delayed fluorescence energy-transfer phosphorescence transport excitons acceptor dopants singlet device cohost Chemistry |
| ISSN号 | 2046-2069 |
| DOI | 10.1039/c7ra11325k |
| 英文摘要 | Pure fluorescent WOLEDs with low efficiency roll-off and high color stability were realized by employing an exciplex host. Due to incomplete energy transfer from the blue exciplex host of mCP : PO-T2T to the orange fluorescent dopant of rubrene, the WOLEDs showed a maximum current efficiency, power efficiency and EQE of 14.2 cd A(-1), 12.8 lm W-1 and 4.90%, respectively. To our surprise, a rather small roll-off ratio of 8.2% from the maximum EQE to the EQE at 1000 cd m(-2) and stable white light-emitting spectra with CIE coordinates of (0.384 + 0.001, 0.439 + 0.002) from 4 V to 8 V were obtained simultaneously. The bipolarity and triplet exciton up-conversion of the exciplex host played key roles in delivering excellent performance. More detailed discussions are also provided. |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/61048]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | Zhang, H.,Wang, Z. Q.,Gao, L.,et al. Low efficiency roll-off and high color stability pure fluorescent white organic light-emitting diode based exciplex host[J]. Rsc Advances,2018,8(2):954-959. |
| APA | Zhang, H.,Wang, Z. Q.,Gao, L.,Zhao, B.,&Li, W. L..(2018).Low efficiency roll-off and high color stability pure fluorescent white organic light-emitting diode based exciplex host.Rsc Advances,8(2),954-959. |
| MLA | Zhang, H.,et al."Low efficiency roll-off and high color stability pure fluorescent white organic light-emitting diode based exciplex host".Rsc Advances 8.2(2018):954-959. |
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