Versatile phosphorescent color tuning of highly efficient borylated iridium(III) cyclometalates by manipulating the electron-accepting capacity of the dimesitylboron group
文献类型：期刊论文
| 作者 | Yang XL ; Sun N ; Dang JS ; Huang Z ; Yao CL ; Xu XB ; Ho CL ; Zhou GJ ; Ma DG ; Zhao X ; Wong WY |
| 刊名 | journal of materials chemistry c
 |
| 出版日期 | 2013 |
| 卷号 | 1期号:20页码:3317-3326 |
| 关键词 | LIGHT-EMITTING-DIODES DENSITY-FUNCTIONAL THEORY EFFECTIVE CORE POTENTIALS EXCITED-STATE PROPERTIES IR(III) COMPLEXES BIPOLAR HOST MOLECULAR CALCULATIONS OPTICAL-PROPERTIES RED DEVICES |
| ISSN号 | 2050-7526 |
| 通讯作者 | yang xl |
| 中文摘要 | several phosphorescent ir-iii ppy-type complexes (ppy = 2-phenylpyridine anion) bearing dimesitylboron (b(mes)(2)) units have been designed and some of them have been newly prepared. by changing the substitution positions with different electronic characters that can manipulate the electron-accepting ability of the attached b(mes)(2) moieties, the direction of the metal-to-ligand charge transfer (mlct) process for these ir-iii complexes can be either retained or shifted, which can provide a new strategy toward phosphorescent color tuning. through computational studies, shifting the substitution position of the b(mes)(2) moiety on the organic ligand, some electronic features, such as the electron injection/electron transporting (ei/et) properties and charge transport balance, can also be conferred to the phosphorescent ir-iii complexes to give excellent electroluminescent (el) characteristics. highly efficient red phosphorescent bis(5-(dimesitylboryl)-2-phenylpyridinato) iridium(acetylacetonate) (ir-b-1) based on the above notion shows a very good compatibility with the choice of host materials which can furnish maximum current efficiency (eta(l)) of 22.2 cd a(-1), external quantum efficiency (eta(ext)) of 14.7% and power efficiency (eta(p)) of 21.4 lm w-1 for the devices constructed with the conventional host materials. so, these exciting results will not only provide both the systematic guidelines for the phosphorescent color variation on the ir-iii complexes with b(mes)(2) units as well as a deeper insight into the conventional color-tuning approach on ppy-type ir-iii complexes, but also offer a simple outlet to afford unique electronic features to these phosphorescent emitters to show admirable el performance. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000318361200007 |
| 公开日期 | 2014-04-18 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/50297]  |
| 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 XL,Sun N,Dang JS,et al. Versatile phosphorescent color tuning of highly efficient borylated iridium(III) cyclometalates by manipulating the electron-accepting capacity of the dimesitylboron group[J]. journal of materials chemistry c,2013,1(20):3317-3326. |
| APA | Yang XL.,Sun N.,Dang JS.,Huang Z.,Yao CL.,...&Wong WY.(2013).Versatile phosphorescent color tuning of highly efficient borylated iridium(III) cyclometalates by manipulating the electron-accepting capacity of the dimesitylboron group.journal of materials chemistry c,1(20),3317-3326. |
| MLA | Yang XL,et al."Versatile phosphorescent color tuning of highly efficient borylated iridium(III) cyclometalates by manipulating the electron-accepting capacity of the dimesitylboron group".journal of materials chemistry c 1.20(2013):3317-3326. |
入库方式： OAI收割
来源：长春应用化学研究所
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