Highly Efficient Phosphorescent Organic Light-Emitting Diodes Hosted by 1,2,4-Triazole-Cored Triphenylamine Derivatives: Relationship between Structure and Optoelectronic Properties
文献类型：期刊论文
| 作者 | Tao YT ; Wang Q ; Ao L ; Zhong C ; Yang CL ; Qin JG ; Ma DG |
| 刊名 | journal of physical chemistry c
 |
| 出版日期 | 2010 |
| 卷号 | 114期号:1页码:601-609 |
| 关键词 | BLUE ELECTROPHOSPHORESCENT DEVICES ELECTRON-TRANSPORTING MATERIALS ELECTROLUMINESCENT DEVICES BIPOLAR HOST BENZIMIDAZOLE DERIVATIVES MOLECULAR MATERIALS QUANTUM EFFICIENCY IRIDIUM COMPLEXES CHARGE-TRANSFER ENERGY-LEVEL |
| ISSN号 | 1932-7447 |
| 通讯作者 | yang cl |
| 中文摘要 | a series of new 1,2,4-triazole-cored triphenylamine derivatives with various linkages between triazole and triphenylamine (tpa) moieties were designed and synthesized through suzuki cross-coupling reaction. the incorporation of rigid triazole moiety greatly improves their thermal and morphology stability, with t-d and t, in the ranges 480-531 degrees c and 106-155 degrees c, respectively. the o-tpa-linked 7 and 8 show much less intramolecular charge transfer and blue-shifted emission than their p-tpa linked analogues i and 3, respectively. the meta- and ortho-structured compounds display higher triplet energy and better electrophophorescent performances than their para-structured congeners. the significant improvement of electrophosphorescent performances can be achieved through subtle change of the host molecular structures, which could be attributed to the well-matched energy levels between the host and hole-transport layer, the high triplet energy of the host, and complete spatial separation of homo and lumo energy levels. devices hosted by structure-optimized o-tpa-m-ptaz achieve the best el performance, with the maximum current efficiencies and maximum external quantum efficiencies as high as 12.4 cd/a and 16.4% for deep red electrophosphorescence, and 50.7 cd/a and 14.2% for green electrophosphorescence. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000273268600082 |
| 公开日期 | 2012-06-07 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/43988]  |
| 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 | Tao YT,Wang Q,Ao L,et al. Highly Efficient Phosphorescent Organic Light-Emitting Diodes Hosted by 1,2,4-Triazole-Cored Triphenylamine Derivatives: Relationship between Structure and Optoelectronic Properties[J]. journal of physical chemistry c,2010,114(1):601-609. |
| APA | Tao YT.,Wang Q.,Ao L.,Zhong C.,Yang CL.,...&Ma DG.(2010).Highly Efficient Phosphorescent Organic Light-Emitting Diodes Hosted by 1,2,4-Triazole-Cored Triphenylamine Derivatives: Relationship between Structure and Optoelectronic Properties.journal of physical chemistry c,114(1),601-609. |
| MLA | Tao YT,et al."Highly Efficient Phosphorescent Organic Light-Emitting Diodes Hosted by 1,2,4-Triazole-Cored Triphenylamine Derivatives: Relationship between Structure and Optoelectronic Properties".journal of physical chemistry c 114.1(2010):601-609. |
入库方式： OAI收割
来源：长春应用化学研究所
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