Carbazole-based polysiloxane hosts for highly efficient solution-processed blue electrophosphorescent devices
文献类型：期刊论文
| 作者 | Sun DM ; Fu Q ; Ren ZJ ; Li W ; Li HH ; Ma DG ; Yan SK |
| 刊名 | journal of materials chemistry c
 |
| 出版日期 | 2013 |
| 卷号 | 1期号:34页码:5344-5350 |
| 关键词 | LIGHT-EMITTING-DIODES HIGH-TRIPLET-ENERGY BIPOLAR HOST LADDER POLYSILSESQUIOXANE CONJUGATED POLYMERS QUANTUM EFFICIENCY IR(III) COMPLEXES PHOSPHINE OXIDE MOLECULE EMITTERS |
| ISSN号 | 2050-7526 |
| 通讯作者 | yan sk |
| 中文摘要 | the efficient host materials containing carbazole moieties linked to the backbone of polysiloxane through a phenyl bridge have been synthesized and characterized. they exhibit good film forming ability, high thermal decomposition temperatures and suitable glass transition temperatures, so as to form stable amorphous states. moreover, the silicon-oxygen linkage disrupts their conjugation and results in a sufficiently high triplet energy level (3.0 ev). iridium bis(4,6-difluorophenyl)pyridinato-n,c-2 picolinate (firpic)-based devices using them as hosts show good overall performance with low efficiency roll-off. the device using pczmsi as the host demonstrates the best performance with a maximum current efficiency of 22.8 cd a(-1), a maximum power efficiency of 9.4 lm w-1 and a maximum external quantum efficiency of 11.9% at a practical luminance of 1165 cd m(-2). even at a brightness of 5000 cd m(-2) level, the external quantum efficiency (eqe) still remains as high as 10%, suggesting a gentle roll-off of device efficiency at high current density. in addition, typically, the host pczmsi film displays good mechanical performance by a nanoindentation technique to meet the practical application. these results demonstrate that the design of polysiloxane-based host materials is a promising approach to realize high performance solution-processed blue phosphorescent polymer light emitting diodes (phpleds). |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000322911900022 |
| 公开日期 | 2014-04-18 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/50222]  |
| 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 | Sun DM,Fu Q,Ren ZJ,et al. Carbazole-based polysiloxane hosts for highly efficient solution-processed blue electrophosphorescent devices[J]. journal of materials chemistry c,2013,1(34):5344-5350. |
| APA | Sun DM.,Fu Q.,Ren ZJ.,Li W.,Li HH.,...&Yan SK.(2013).Carbazole-based polysiloxane hosts for highly efficient solution-processed blue electrophosphorescent devices.journal of materials chemistry c,1(34),5344-5350. |
| MLA | Sun DM,et al."Carbazole-based polysiloxane hosts for highly efficient solution-processed blue electrophosphorescent devices".journal of materials chemistry c 1.34(2013):5344-5350. |
入库方式： OAI收割
来源：长春应用化学研究所
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