Benzimidazole-carbazole-based bipolar hosts for high efficiency blue and white electrophosphorescence applications
文献类型：期刊论文
| 作者 | Huang H ; Yang X ; Pan B ; Wang L ; Chen JS ; Ma DH ; Yang CL |
| 刊名 | journal of materials chemistry
 |
| 出版日期 | 2012 |
| 卷号 | 22期号:26页码:13223-13230 |
| 关键词 | LIGHT-EMITTING DEVICES RED PHOSPHORESCENT OLEDS HIGH TRIPLET ENERGIES WORK FUNCTION GREEN DIODES MOLECULE DENSITY UNITS |
| ISSN号 | 0959-9428 |
| 通讯作者 | wang l |
| 中文摘要 | a series of novel bipolar blue phosphorescent host materials mbicp, mbincp and mbiphcp have been designed and synthesized, which comprehensively outperform the widely used phosphorescent host, 1,3-di(9h-carbazol-9-yl)benzene (mcp). the thermal, photophysical and electrochemical properties of these host materials were finely tuned through linking different carbazole moieties to the benzimidazole. mbicp (t-g = 84 degrees c) and mbiphcp (t-g = 103 degrees c) exhibit high morphological stabilities in comparison with mcp. theoretical calculations show that the homo/lumo orbitals of these materials are mainly dispersed on the electron donating and electron accepting groups, respectively. a blue pholed device fabricated using mbicp as the host exhibits a maximum external quantum efficiency (eta(eqe,max)) of 18.7% and a maximum power efficiency (eta(p,max)) of 33.6 lm w-1. interestingly, the external quantum efficiencies (eta(eqe)) are still as high as 17.1% at a high luminance of 1000 cd m(-2). furthermore, the two-color, all-phosphor and single-emitting-layer white device hosted by mbicp achieved a maximum external quantum efficiency (eta(eqe,max)) of 20.5% corresponding to a maximum power efficiency (eta(p,max)) of 53.3 lm w-1. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000305242300038 |
| 公开日期 | 2013-06-30 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/48531]  |
| 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 | Huang H,Yang X,Pan B,et al. Benzimidazole-carbazole-based bipolar hosts for high efficiency blue and white electrophosphorescence applications[J]. journal of materials chemistry,2012,22(26):13223-13230. |
| APA | Huang H.,Yang X.,Pan B.,Wang L.,Chen JS.,...&Yang CL.(2012).Benzimidazole-carbazole-based bipolar hosts for high efficiency blue and white electrophosphorescence applications.journal of materials chemistry,22(26),13223-13230. |
| MLA | Huang H,et al."Benzimidazole-carbazole-based bipolar hosts for high efficiency blue and white electrophosphorescence applications".journal of materials chemistry 22.26(2012):13223-13230. |
入库方式： OAI收割
来源：长春应用化学研究所
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