Light-emitting properties of fluorene-based copolymers

被引:1
作者
Hwang, DH [1 ]
Lee, JD
Park, MJ
Lee, JH
Lee, CH
机构
[1] Kumoh Natl Inst Technol, Dept Appl Chem, Kumi 730701, South Korea
[2] Chungju Natl Univ, Dept Polymer Sci & Engn, Chungju 380702, South Korea
[3] Seoul Natl Univ, Dept Elect Engn & Comp Sci, Seoul 151744, South Korea
关键词
polyfluorene; carbazole; copolymer; blue electroluminescence;
D O I
10.1142/S0218863504002390
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A series of random copolymers of 2,7-dibromo-9,9-bis(4-n-octyloxyphenyl) fluorene (BOPF) and 2,7-dibromo-N-(2'-ethylhexyl)carbazole (EHC) were synthesized through Ni(0)-mediated polymerization. Carbazole comonomer was introduced to improve the hole-transporting properties of PBOPF. The synthesized poly(BOPF-co-EHC)s showed similar UV-visible absorption and PL emission to PBOPF. EL devices were fabricated in an ITO/PEDOT/polymer/Ca/Al configuration. EL devices which used copolymers showed improved device performance over devices which used PBOPF homopolymers due to a more balanced charge transport.
引用
收藏
页码:637 / 642
页数:6
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