Triphenylamine and quinoline-containing polyfluorene for blue light-emitting diodes
Triphenylamine and quinoline-containing polyfluorene for blue light-emitting diodes
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DOI：
10.1016/j.eurpolymj.2010.02.013
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发表时间：
2010-05
影响因子：
6
通讯作者：
Ying Lin;Yu Chen;Zhi-Kuan Chen;D. Ma;Bin Zhang;Tengling Ye;Yanfeng Dai
中科院分区：
文献类型：
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作者：
Ying Lin;Yu Chen;Zhi-Kuan Chen;D. Ma;Bin Zhang;Tengling Ye;Yanfeng Dai
介绍了一种新型的荧光聚芴基共聚物PTHD，该共聚物在芴单元的C-9位含有富电子的三苯胺和贫电子的苯基喹啉侧链。通过对PTHD溶液光致发光光谱和薄膜光致发光光谱的比较，在薄膜光致发光光谱中观察到相当大的红移Δλ= 10-15nm。在稀溶液中出现的肩峰发射强度在薄膜中也显著增强。与参考聚合物{[9,9-二己基芴]-alt-[9,9-二（2,4-二苯基喹啉）芴]}相比，PTHD在ITO/PEDOT:PSS/聚合物70%+PBD30%/TPBI/LiF/Al的PLED器件结构下具有更高的HOMO能级和更高的最大亮度。
A novel blue light-emitting polyfluorene-based copolymer PTHD containing electron-rich triphenylamine and electron-poor phenylquinoline side chains in the C-9 position of fluorene unit is described. By comparison of the solution and thin film photoluminescence (PL) spectra of PTHD, a considerable red-shift of Δλ=10–15nm was observed in the thin film PL spectrum. The emission intensity of the shoulder peak appeared in dilute solution was also significantly enhanced in the thin film. In contrast to the reference polymer poly{[9,9-dihexylfluorene]-alt-[9,9-di(2,4-diphenylquinoline)fluorene]}, PTHD exhibits higher HOMO energy level, and higher maximum brightness with the PLED device configuration of ITO/PEDOT:PSS/polymer70%+PBD30%/TPBI/LiF/Al.