Polyfluorenes containing 1,8-naphthalimide dye as endcapping groups

被引:10
作者
Cao, JX [1 ]
Zhou, QG [1 ]
Cheng, YX [1 ]
Geng, YH [1 ]
Wang, LX [1 ]
Ma, DG [1 ]
Jing, XB [1 ]
Wang, FS [1 ]
机构
[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
关键词
polyfluorene; 1,8-naphthalimide; energy transfer;
D O I
10.1016/j.synthmet.2005.07.239
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A series of polyfluorene derivatives endcapped by 0.1-2mol% 1,8-naphthalimide dye were synthesized by Yamamoto coupling reaction. The resulting polymers show the promising electroluminescence (EL) performance with emission predominantly from the 1,8-naphthalimide unit due to energy transfer and charge trapping from polyfluorene backbone to 1,8-naphthalimide dye. Single-layer devices were fabricated with a device configuration of ITO/PEDOT/polymer/Ca/Al. Among all the devices tested, the device of NFP50 exhibited the current efficiency of 7.40cd/A, the power efficiency of 2.891m/W and the maximum brightness of 19280cd/m(2), about 30 times more efficient than that of polyfluorene without endcapping groups.
引用
收藏
页码:237 / 240
页数:4
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