Novel tetraarylsilane-based hosts for blue phosphorescent organic light-emitting diodes
文献类型：期刊论文
| 作者 | Yang, Rongjuan; Li, Dan; Bai, Yongqi; Zhang, Lei; Liu, Zhiyang; Hao, Jian; Wei, Qiang; Liao, Liangsheng; Peng, Ruixiang; Ge, Ziyi |
| 刊名 | ORGANIC ELECTRONICS
 |
| 出版日期 | 2018 |
| 卷号 | 55页码:117-125 |
| 关键词 | Electroluminescent Devices Triplet Energy Electrophosphorescence Carbazole Performance Efficiency Dopant |
| 英文摘要 | Two highly twisted tetraarylsilane derivatives containing carbazole and benzimidazole were designed and synthesized with high triplet energy level (E-T) as hosts for blue phosphorescent organic light-emitting diodes (PHOLEDs). The thermal, photophysical, electrochemical properties and geometry optimization of materials were studied. The central silicon atom effectively disconnected the electronic interactions among the three functional units in a molecule, resulting in high E-T and relatively wide band gap (E-g) (>= 3.5 eV). Finally, the blue PHOLED devices using 3,3'-((phenyl(4-(9-phenyl-9H-carbazol-2-yl)phenyl)silanediyl)bis(4,1-phenylene)) bis(9-phenyl-9H-carbazole) (TCzSi) as host material achieved a maximum current efficiency of 25.5 cd A(-1), a maximum power efficiency of 18.15 lm W-1, a maximum luminance of 6285 cd m(-2) and a maximum external quantum efficiency (EQE) of 13.32%. This study showed a molecular design strategy to develop novel tetra-arylsilane-based compounds for blue hosts. |
| 学科主题 | Materials Science ; Physics |
| 语种 | 英语 |
| 公开日期 | 2018-12-04 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/16734]  |
| 专题 | 2018专题 |
| 推荐引用方式 GB/T 7714 | Yang, Rongjuan,Li, Dan,Bai, Yongqi,et al. Novel tetraarylsilane-based hosts for blue phosphorescent organic light-emitting diodes[J]. ORGANIC ELECTRONICS,2018,55:117-125. |
| APA | Yang, Rongjuan.,Li, Dan.,Bai, Yongqi.,Zhang, Lei.,Liu, Zhiyang.,...&Ge, Ziyi.(2018).Novel tetraarylsilane-based hosts for blue phosphorescent organic light-emitting diodes.ORGANIC ELECTRONICS,55,117-125. |
| MLA | Yang, Rongjuan,et al."Novel tetraarylsilane-based hosts for blue phosphorescent organic light-emitting diodes".ORGANIC ELECTRONICS 55(2018):117-125. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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