Synthesis and Optical and Electroluminescent Properties of Novel Conjugated Copolymers Derived from Fluorene and Benzoselenadiazole
Synthesis and Optical and Electroluminescent Properties of Novel Conjugated Copolymers Derived from Fluorene and Benzoselenadiazole
复制标题
DOI：
10.1021/ma034134j
复制
发表时间：
2003-07
期刊：
影响因子：
5.5
通讯作者：
Renqiang Yang;R. Tian;Q. Hou;Wei Yang;Yong Cao
中科院分区：
文献类型：
--
作者：
Renqiang Yang;R. Tian;Q. Hou;Wei Yang;Yong Cao
通过钯催化的Suzuki偶联反应制备了一系列由9,9 - 二辛基芴（DOF）和2,1,3 - 苯并硒二唑（BSeD）衍生的新型发光共聚物。DOF与BSeD的投料比分别为50:50、85:15、92:8和98:2。所有共聚物都可溶于常见有机溶剂，且在固态下具有强荧光。由这些共聚物制成的器件发出橙红色光，其最大发射波长λmax = 570 - 600 nm。随着BSeD含量的增加，器件的最大电致发光发射逐渐轻微红移。聚合物发光器件（PLED）的最大外量子效率达到1.0%，这表明这种基于芴和苯并硒二唑的新型含硒电致发光聚合物是制造PLED的有希望的候选材料。
A novel series of light-emitting copolymers derived from 9,9-dioctylfluorene (DOF) and 2,1,3-benzoselenadiazole (BSeD) is prepared by means of palladium-catalyzed Suzuki coupling reaction. The feed ratios of DOF to BSeD were 50:50, 85:15, 92:8, and 98:2, respectively. All of the copolymers are soluble in common organic solvents and highly fluorescent in solid state. Devices from such copolymers emit orange-red light with λmax = 570−600 nm. The maximal EL emissions of the devices slightly red-shifted gradually with increasing BSeD's contents. The maximal external quantum efficiency of the polymer light-emitting devices (PLED) reaches 1.0%, which indicates that this new seleno-containing EL polymer based on fluorene and benzoselenadiazole is a promising candidate for fabricating PLEDs.