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Synthesis and electroluminescent properties of conjugated copolymer containing phenothiazine and phenanthridine unit

Title
Synthesis and electroluminescent properties of conjugated copolymer containing phenothiazine and phenanthridine unit
Authors
Han, YS[Han, Yoon Soo]Kim, SD[Kim, Sang Dae]Kwon, Y[Kwon, Younghwan]Choi, KH[Choi, Kyu-Han]Park, LS[Park, Lee Soon]
DGIST Authors
Han, YS[Han, Yoon Soo]
Issue Date
2006
Citation
Molecular Crystals and Liquid Crystals, 459, 119-128
Type
Article
Article Type
Article
Keywords
Aromatic PolymersAzomethineElectroluminescenceHole TransportingLight-Emitting DiodesOrganic SolventsPhenothiazinePhenyl PhenanthridinePolymer Light-Emitting Diode (PLED)Synthesis (Chemical)
ISSN
1542-1406
Abstract
Conjugated copolymer, poly[N-(2-ethylhexyl)phenothiazine-alt-6-phenyl phenanthridine] [poly(PZ-PTI)], with azomethine linkage was synthesized by Schiff-base reaction. This new conjugated copolymer exhibited improved solubility in common organic solvents due to the presence of alkyl side chains on phenothiazine rings as well as polar azomethine groups in main chains. Single-layered PLED made with poly(PZ-PTI) as an emitting layer exhibited EL (emission) at 572 nm (yellow; color coordinates of x = 0.51, y = 0.48). Double-layered PLED fabricated with the synthesized polymer as an emitting layer and Alq3 as an electron transporting layer exhibited enhanced EL emission and efficiency compared to that of single-layered PLED. With increasing the thickness of Alq3 layer in double-layered PLED the emission peak gradually shifted to the single-layered PLED made with only Alq3 as an emitting layer, confirming good hole transporting behaviour of the synthesized conjugated copolymer.
URI
http://hdl.handle.net/20.500.11750/2529
DOI
10.1080/15421400600922133
Publisher
Taylor and Francis Ltd.
Files:
There are no files associated with this item.
Collection:
ETC1. Journal Articles


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