| 9位芘和长链烷氧基苯取代的三联芴 |
| |
| 引用本文： | 唐超,;陈淑芬,;凌启淡.9位芘和长链烷氧基苯取代的三联芴[J].南京邮电学院学报(自然科学版),2008(1):53-58. |
| |
| 作者姓名： | 唐超 ;陈淑芬 ;凌启淡 |
| |
| 作者单位： | [1]南京邮电大学江苏省有机电子与信息显示重点实验室,江苏南京210046; [2]南京邮电大学信息材料与纳米技术研究院,江苏南京210003 |
| |
| 基金项目： | 国家自然科学基金（60325412,90406021,50428303,20404002）和南京邮电大学攀登计划（NY206067）资助项目 |
| |
| 摘 要： | 采用Suzuki偶联反应制备了9位芘和长链烷氧基苯取代的三联芴ATF。热分析结果显示ATF具有良好的热稳定性，其热分解温度为430℃，玻璃化转变温度高达155℃。芘在芴9位的非共轭取代并没有改变共轭三联芴的高效率蓝光发射特点，但ATF的HOMO能级得以明显提高，这意味着空穴注入性能有明显的提高。ATF既可以采用真空蒸镀，又可以采用溶液旋涂的方法制备电致发光器件，旋涂器件（ITO/PEDOT：PSS（40nm）／ATF（100nm）／Ba／Al）的启动电压为7V，最大外量子效率为0．62。
|
| 关 键 词： | 芘取代三联芴 HOMO能级 蓝光材料 |
Terfiuorene Deriviative with Pyrene and Long-chain Alkoxy Groups at C9 of Fluorene |
| |
| Affiliation: | TANG Chao, CHEN Shu-fen,LING Qi-dan(1. Jiangsu Key Lab for Organic Electronics ＆ Information Displays, Nanjing University of Posts and Telecommunications, Nanjing 210046, China; 2. Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210003, China) |
| |
| Abstract: | The C9 pyrene and long-chain alkoxy groups substituted terfluorene （ATF） was synthesized according to Suzuki coupling reaction. Thermal analyses indicate that ATF has good thermal stability with high decomposition temperature （430℃ ） and high glass transition temperature （ 155℃）. The non-conjugated pyrene substitution at C9 of fluorene does not decrease the high efficiency of blue emission of the conjugated terfluorene. However, ATF has increased HOMO and improved hole-injection characteristics compared with standard terfluorenes. The OLEDs could be fabricated using ATF as the emitter by vacuum deposition or spin-coating technology. The spin-coating device of ITO/PEDOT：PSS（40 nm）/ATF （100 nm）/Ba/Al has turn-on voltage of 7 V, with the maximum external quantum efficiency of 0, 62. |
| |
| Keywords: | Pyrene substituted terfluorene Improved HOMO level Blue light-emitting materials |
| 本文献已被 维普 等数据库收录！ |
|
