Deep blue light-emitting polymers with fluorinated backbone for enhanced color purity and efficiency
Deep blue light-emitting polymers with fluorinated backbone for enhanced color purity and efficiency
复制标题
具有氟化主链的深蓝色发光聚合物，可提高颜色纯度和效率
DOI：
10.1016/j.polymer.2012.02.010
复制
发表时间：
2012-03
期刊：
影响因子：
4.6
通讯作者：
Li, Jiuyan
中科院分区：
文献类型：
--
作者：
Zhang, Ting;Wang, Renjie;Ren, Huicai;Chen, Zhiguang;Li, Jiuyan
Two fluorene-based copolymers (PF-33F and PF-50F) with p-difluorophenylene units in the backbone were synthesized. In comparison with the reference poly(9,9-dioctylfluorene) (PFO), the introduction of p-difluorophenylene units not only increased the fluorescent quantum yields, but also improved the spectra purity and stability of these deep blue emitting copolymers. The famous green emission band at 520 nm from fluorenone defects was never detected for these copolymers even after they were thermal annealed in air at 150 °C. Organic light-emitting diodes were fabricated using them as emitting layer and pure blue electroluminescence was obtained. It was observed that PF-33F based device exhibited much higher current density and brightness than PF-50F and PFO devices. A maximum external quantum efficiency of 1.14% (1.14 cd A−1) and the CIE (0.16, 0.13) were achieved for PF-33F device, which are among the best performance for polyfluorenes reported so far.
登录
查看更多内容
影响因子：
29.4
作者：
B. Krause;G. Koops;van der N.F.A. Vegt;Matthias Wessling;M. Wubbenhorst;van Jan Turnhout
通讯作者：
B. Krause;G. Koops;van der N.F.A. Vegt;Matthias Wessling;M. Wubbenhorst;van Jan Turnhout
影响因子：
19
作者：
F. Montilla;R. Mallavia
通讯作者：
F. Montilla;R. Mallavia
DOI：
10.1002/pola.1296
发表时间：
2001-09
期刊：
Journal of Polymer Science Part A
影响因子：
--
作者：
Hisamitsu Kameshima;N. Nemoto;T. Endo
通讯作者：
Hisamitsu Kameshima;N. Nemoto;T. Endo
影响因子：
4.3
作者：
Jo, JH;Chi, CY;Yoon, DY
通讯作者：
Yoon, DY
基于具有萘蒽端盖的新型芴核衍生物的深蓝色和白色有机发光二极管
影响因子：
--
作者：
Zhang, Ting;Liu, Di;Wang, Qian;Wang, Renjie;Ren, Huicai;Li, Jiuyan
通讯作者：
Li, Jiuyan