Changchun Institute of Optics,Fine Mechanics and Physics,CAS
Emission mechanism in organic light-emitting devices comprising a europium complex as emitter and an electron transporting material as host | |
其他题名 | 论文其他题名 |
Xin Q.; Li W. L.; Su W. M.; Li T. L.; Su Z. S.; Chu B.; Li B. | |
2007 | |
发表期刊 | Journal of Applied Physics |
ISSN | 0021-8979 |
卷号 | 101期号:4 |
摘要 | The emission mechanism in organic light-emitting devices, where the emission layer is composed of Eu(DBM)(3)pyzphen (DBM=Dibenzoylmethane, pyzphen=pyrazino-[2,3-f][1,10]-phenanthroline) doped into electron transporting/hole blocking material BPhen (4,7-diphenyl-1, 10-phenanthroline), is investigated. Energy transfer and carrier trapping simultaneously exist in the luminescence process, and carrier trapping is a main process. Direct carrier trapping by Eu(DBM)(3)pyzphen molecules is confirmed by the difference of electroluminescence and photoluminescence spectra as well as J-V characteristics. Efficient Foster and Dexter energy transfer from BPhen to Eu(DBM)(3)pyzphen molecules were speculated in terms of analysis of photoluminescence spectra of fixed solutions, triplet energies, and phosphorescent lifetimes. Based on these mechanisms, the overall performances of these devices were improved. High efficiencies were obtained under carrier trapping by Eu(DBM)(3)pyzphen molecules, and the emission of BPhen was eliminated by efficient energy transfer from the BPhen to Eu(DBM)(3)pyzphen molecules. (c) 2007 American Institute of Physics. |
收录类别 | SCI |
语种 | 英语 |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ciomp.ac.cn/handle/181722/24888 |
专题 | 中科院长春光机所知识产出 |
推荐引用方式 GB/T 7714 | Xin Q.,Li W. L.,Su W. M.,et al. Emission mechanism in organic light-emitting devices comprising a europium complex as emitter and an electron transporting material as host[J]. Journal of Applied Physics,2007,101(4). |
APA | Xin Q..,Li W. L..,Su W. M..,Li T. L..,Su Z. S..,...&Li B..(2007).Emission mechanism in organic light-emitting devices comprising a europium complex as emitter and an electron transporting material as host.Journal of Applied Physics,101(4). |
MLA | Xin Q.,et al."Emission mechanism in organic light-emitting devices comprising a europium complex as emitter and an electron transporting material as host".Journal of Applied Physics 101.4(2007). |
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 | ||
Xin-2007-Emission me(375KB) | 开放获取 | -- | 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