Synthesis and characterization of blue-light-emitting poly(aryl ether)s containing oligofluorenes in the main chain


Autoria(s): Jiang GX; Wu J; Yao B; Geng YH; Cheng YX; Xie ZY; Wang LX; Jing XB; Wang FS
Data(s)

2006

Resumo

A series of blue light-emitting poly(aryl ether)s (PAEs) containing ter- or pentafluorenes in the main chain have been synthesized via nucleophilic substitution polycondensation reaction. The energy levels of the polymers were tuned by introducing hole-transporting triaryamine groups in the side chains and/or incorporating electron-transporting oxadiazole segments in the main chain. The optical properties of the polymers are dominantly determined by the well-defined oligofluorene segments, and therefore all polymers show high photoluminescence quantum yield. Differential scanning calorimeter (DSC) characterizations indicate that they are vitrified polymers with high glass transition temperature (up to 156 degrees C). The polymers comprising pentafluorenes exhibit electroluminescent properties equal to or better than fully conjugated fluorene homopolymers. With the device structure of ITO/PEDOT:PSS/polymer/Ca/Al, an external quantum efficiency of 1.4% along with Commission Internationale de L'Eclairage (CIE) coordinates of (0.17, 0.09) has

Identificador

http://ir.ciac.jl.cn/handle/322003/16015

http://www.irgrid.ac.cn/handle/1471x/151731

Idioma(s)

英语

Fonte

Jiang GX;Wu J;Yao B;Geng YH;Cheng YX;Xie ZY;Wang LX;Jing XB;Wang FS.Synthesis and characterization of blue-light-emitting poly(aryl ether)s containing oligofluorenes in the main chain,MACROMOLECULES,2006,39(23):7950-7958

Palavras-Chave #STRUCTURE-PROPERTY RELATIONSHIPS #MONODISPERSE OLIGOFLUORENES #PALLADIUM NANOPARTICLES #CONJUGATED POLYMERS #CHARGE INJECTION #ENERGY-TRANSFER #SIDE-CHAINS #DIODES #POLYFLUORENE #ELECTROLUMINESCENCE
Tipo

期刊论文