White Electroluminescence from a Single-Polymer System with Simultaneous Three-color Emission

White Electroluminescence from a Single-Polymer System with Simultaneous Three-color Emission
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来自单聚合物系统的白色电致发光同时三色发射

DOI:
10.1007/s10904-011-9585-4
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发表时间:
2011
影响因子:
4
通讯作者:
Xu Bingshe
Xu Bingshe
中科院分区:
化学3区
文献类型:
--
作者:
Xu Yang;Wang Hua;Song Chunli;Liu Xuguang;Xu Bingshe

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将低含量的芴酮(FO)和4,7-二(2-噻吩基)-2,1,3-苯并噻唑(DBT)加入聚9,9-二辛基芴的主链中,合成了一系列聚合物。通过调整FO和DBT的含量,获得了单一聚合物的白光发射。所有聚合物在410℃时均表现出良好的热稳定性,重量损失5%,在普通有机溶剂中具有良好的溶解性。发现了氧化铟锡/聚(3,4-乙烯二氧噻吩):聚(苯乙烯磺酸盐)/发射层/Ca/Al结构的电致发光器件能发出白光,其国际发光委员会坐标为(0.37,0.34)。这些器件的最大亮度为3414 cd/m2,最大电流效率为2.79 cd/ a。
A series of polymers were synthesized by incorporating low contents of fluorenone (FO) and 4,7-bis(2-thienyl)-2,1,3-benzothiadiazole (DBT) into the main chain of poly(9,9-dioctylfluorene). White-light emission was obtained from a single polymer by adjusting the FO and DBT contents. All polymers showed good thermal stability with 5% weight loss up to 410 °C and good solubility in common organic solvents. Electroluminescence devices with indium tin oxide/poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate)/emission layer/Ca/Al structure were found to emit white light with Commission Internationale de l’Eclairage coordinate of (0.37, 0.34). These devices exhibited a maxium brightness of 3414 cd/m2and a maximum current efficiency of 2.79 cd/A.
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