Rare Earth Complex as Electron Trapper and Energy Transfer Ladder for Efficient Red Iridium Complex Based Electroluminescent Devices
文献类型：期刊论文
| 作者 | Zhou,Liang; Li,Leijiao; Jiang,Yunlong; Cui,Rongzhen; Li,Yanan; Zhao,Xuesen; Zhang,Hongjie |
| 刊名 | acs applied materials & interfaces
 |
| 出版日期 | 2015 |
| 卷号 | 7期号:29页码:16046-16053 |
| 关键词 | LIGHT-EMITTING-DIODES PHOSPHORESCENT OLEDS EUROPIUM COMPLEX METAL-COMPLEXES ROLL-OFF CARRIER PERFORMANCE LAYER HOST MECHANISM |
| 通讯作者 | zhou,l |
| 英文摘要 | in this work, we experimentally demonstrated the, new functions of trivalent rare earth complex in improving the electroluminescent (el) performances of iridium complex by codoping trace eu(tta)(3)phen (tta = thenoyltriflubroacetone, phen = 1,10-phenanthroline), into a light-emitting layer based on pq(2)ir(dpm) (iridium(iii)bis(2-phenylquinoly-n,c-2')-dipivaloylmethane). compared with a reference device, the codoped devices displayed higher efficiencies, slower efficiency roll-off, higher brightness, and even better color purity. experimental results demonstrated that eu(tta)(3)phen molecules function as electron trappers due to its low-lying energy levels; which are helpful in balancing holes and electrons and in broadening recombination zone. in addition, the matched triplet energy of eu(tta)(3)phen is instrumental in facilitating, energy transfer from host to emitter. finally, highly efficient red el devices with the highest current efficiency, power efficiency and brightness up to 58.98 cd a(-1) (external quantum efficiency (eqe) of 2196), 61.73 lm w-1 and 100870 cd m(-2), respectively, were obtained by appropriately decreasing the doping concentration of iridium complex. at certain brightness of 1000 cd m(-2), el current efficiency up to 51.94 cd a(-1) (eqe = 18.5%) was retained. our investigation extends the application of tare earth complexes in el devices and provides a chance to improve the device performances. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000358897200042 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/64749]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zhou,Liang,Li,Leijiao,Jiang,Yunlong,et al. Rare Earth Complex as Electron Trapper and Energy Transfer Ladder for Efficient Red Iridium Complex Based Electroluminescent Devices[J]. acs applied materials & interfaces,2015,7(29):16046-16053. |
| APA | Zhou,Liang.,Li,Leijiao.,Jiang,Yunlong.,Cui,Rongzhen.,Li,Yanan.,...&Zhang,Hongjie.(2015).Rare Earth Complex as Electron Trapper and Energy Transfer Ladder for Efficient Red Iridium Complex Based Electroluminescent Devices.acs applied materials & interfaces,7(29),16046-16053. |
| MLA | Zhou,Liang,et al."Rare Earth Complex as Electron Trapper and Energy Transfer Ladder for Efficient Red Iridium Complex Based Electroluminescent Devices".acs applied materials & interfaces 7.29(2015):16046-16053. |
入库方式： OAI收割
来源：长春应用化学研究所
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