Novel electron-type host material for unilateral homogeneous phosphorescent organic light-emitting diodes with low efficiency roll-off
文献类型：期刊论文
| 作者 | Yang X ; Huang H ; Pan B ; Zhuang SQ ; Aldred MP ; Wang L ; Chen JS ; Ma DG |
| 刊名 | journal of materials chemistry
 |
| 出版日期 | 2012 |
| 卷号 | 22期号:43页码:23129-23153 |
| 关键词 | HIGHLY EFFICIENT BIPOLAR HOST ELECTROPHOSPHORESCENT DEVICES OLEDS GREEN BLUE DERIVATIVES MOBILITIES CARBAZOLE COMPLEXES |
| ISSN号 | 0959-9428 |
| 通讯作者 | wang l |
| 中文摘要 | two novel simple electron-transport (et) type host materials, 2,6-bis(3-(1-phenyl-1h-benzo[d]imidazol-2-yl)phenyl)benzene (mdbip) and 2,6-bis(3-(1-phenyl-1h-benzo[d]imidazol-2-yl)phenyl) pyridine (mdbipy) have been designed and synthesized. the two compounds exhibit high decomposition temperatures (t-d: 444 degrees c for mdbip and 450 degrees c for mdbipy) and a stable amorphous glassy state (t-g: 108 degrees c for mdbip and 110 degrees c for mdbipy). in the typical device ito/moo3 (10 nm)/4,4'-bis[n-(1-naphthyl)-n-phenylamino]biphenyl (npb, 80 nm)/tcta (5 nm)/host: ir(ppy)(3) (9 wt%, 20 nm)/tmpypb (40 nm)/lif (1 nm)/al (100 nm), when mdbipy was used as host material, the device b showed a maximum efficiency of 21.1%, 75.8 cd a(-1) and 83.6 lm w-1. when mdbipy was utilized as both the electron transporting and host layer, the unilateral homogeneous device c exhibited a maximum efficiency of 20.6%, 74.2 cd a(-1) and 71.8 lm w-1. more interestingly, device c showed low efficiency roll-off relative to device b. when the brightness of the device is over 1000 cd m(-2), the current efficiency of device c is higher than device b. at a brightness of 5000 cd m(-2), the current efficiency of device c is only roll off 5.6%. these results demonstrate that utilizing electron-transport type host materials to fabricate unilateral homogeneous pholeds is a promising way to simplify the device configuration and optimize the performance of oled devices. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000310721400042 |
| 公开日期 | 2013-03-18 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/47827]  |
| 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 | Yang X,Huang H,Pan B,et al. Novel electron-type host material for unilateral homogeneous phosphorescent organic light-emitting diodes with low efficiency roll-off[J]. journal of materials chemistry,2012,22(43):23129-23153. |
| APA | Yang X.,Huang H.,Pan B.,Zhuang SQ.,Aldred MP.,...&Ma DG.(2012).Novel electron-type host material for unilateral homogeneous phosphorescent organic light-emitting diodes with low efficiency roll-off.journal of materials chemistry,22(43),23129-23153. |
| MLA | Yang X,et al."Novel electron-type host material for unilateral homogeneous phosphorescent organic light-emitting diodes with low efficiency roll-off".journal of materials chemistry 22.43(2012):23129-23153. |
入库方式： OAI收割
来源：长春应用化学研究所
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