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2001•Acta Polymerica SinicaRequires access

ELECTROLUMINESCENCE STUDY OF CONJUGATED COPOLYMER CONTAINING p-PHENYLENEETHYNYLENE AND THIOPHENE

Niu Jun-feng, Xü Liu

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Abstract

Electruluminescence (EL) in conjugated polymers based on phenyleneethynylene and thiophene (PPE) with C—C triple bonds in their main chains were studied. It was found that the emitting wavelength will red shift by introduction of thiophene which is an electron rich moiety, the results suggest that electron rich moieties should increase effective conjugation length. Our results also show that the incorporation of thiophene units into PPE may significantly reduce the rigid rod conformation and improve the processibility.

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What this paper is about

Electruluminescence (EL) in conjugated polymers based on phenyleneethynylene and thiophene (PPE) with C—C triple bonds in their main chains were studied. It was found that the emitting wavelength will red shift by introduction of thiophene which is an electron rich moiety, the results suggest that electron rich moieties should increase effective conjugation length. Our results also show that the incorporation of thiophene units into PPE may significantly reduce the rigid rod conformation and improve the processibility.

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Available abstract

Electruluminescence (EL) in conjugated polymers based on phenyleneethynylene and thiophene (PPE) with C—C triple bonds in their main chains were studied. It was found that the emitting wavelength will red shift by introduction of thiophene which is an electron rich moiety, the results suggest that electron rich moieties should increase effective conjugation length. Our results also show that the incorporation of thiophene units into PPE may significantly reduce the rigid rod conformation and improve the processibility.

Key concepts: Thiophene, Conjugated system, Moiety, Electroluminescence, Copolymer, Polymer, Materials science, Photochemistry

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