Synthesis and characterization of green to orange electroluminescent copolymers derived from fluorene and 2,3-dimethylnaphthalopyrazine View Full Text


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Article Info

DATE

2010-10

AUTHORS

Yangjun Xia, Junfeng Tong, Xia Ren, Jie Luo, Nong Wang, Hongbing Wu, Duowang Fan

ABSTRACT

Series of high molecular weight, readily soluble copolymers were synthesized by Suzuki palladium catalyzed coupling reaction from 9,9-dioctylfluorene and 2,3-dimethylnaphthopyrazine. The absorption, electrochemical and photoluminescence properties of the copolymers were studied. The external electrolu-minescence efficiencies in the devices of configuration indium-tin oxide/polyethylenedioxythiophene-polystyrene sulfonic acid/poly(fluorene-naphthopyrazine)/barium/aluminium varied with the copolymers composition, and the electroluminescence emission peaks of the copolymers were red-shifted from 530 nm to 584 nm as 2,3-dimethylnaphthopyrazine mole contents increasing from 0.5% to 30%. The best device performance was observed for devices fabricated with the copolymer of 2,3-dimethylnathphpyrazine 5% mole contents, showed maximum external quantum efficiency of 1.38% and electroluminescence peaks at around 537 nm. More... »

PAGES

614-620

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1134/s1560090410090149

DOI

http://dx.doi.org/10.1134/s1560090410090149

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1048612926


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