AustralieFrV1, Main, Exploration, bibRecord, 008C09

Luminescence properties of poly(phenylene vinylene) derivatives

Identifieur interne : 008C09 ( Main/Exploration ); précédent : 008C08; suivant : 008C10

Luminescence properties of poly(phenylene vinylene) derivatives

Auteurs : Cuong Ton-That [Australie] ; Geoff Stockton [Australie] ; Matthew R. Phillips [Australie] ; Thien-Phap Nguyen [France] ; CHUN HAO HUANG [France] ; Ala Cojocaru [Moldavie]

Source :

Polymer international [ 0959-8103 ] ; 2008.

RBID : Pascal:08-0448198

Descripteurs français

Pascal (Inist)
- Phénylènevinylène dérivé polymère, Polymère conjugué, Polymère soufre, Etude expérimentale, Cathodoluminescence, Préparation, Photoluminescence, Conformation, Relation structure propriété, Effet substituant, Effet température, Propriété optique, Phénylènevinylène(2-[2-éthylhexyloxy]-5-méthoxy) polymère.

English descriptors

KwdEn :
- Cathodoluminescence, Conformation, Conjugated polymer, Experimental study, Optical properties, Phenylenevinylene derivative polymer, Photoluminescence, Preparation, Property structure relationship, Substituent effect, Sulfur containing polymer, Temperature effect.

Abstract

BACKGROUND: Conjugated polymers, especially those of the poly(phenylene vinylene) (PPV) family, are promising candidates as emission material in light-emitting devices. The aim of this work was to investigate the dependence of the luminescence properties of PPV-based derivatives on their polymer structure, especially side groups. RESULTS: Three PPV derivatives, BEHPPV, MEHPPV and MEHSPPV, were synthesised and characterised by photoluminescence (PL) and cathodoluminescence (CL) spectroscopies in the temperature range 10-300K. PL and CL spectra of the polymers exhibit similar luminescence peaks, which undergo a blue shift with increasing temperature. The shift in wavelength is accompanied by variations in the relative intensities of emission peaks. Both BEHPPV and MEHPPV display emission characteristics of the PPV backbone, but the peak of MEHPPV shifts to a longer wavelength in comparison with the corresponding peak of BEHPPV at the same temperature. The luminescence spectra of MEHSPPV, which has a sulfanyl incorporated in the side chain, are considerably different from those of the two other derivatives. CONCLUSIONS: The results demonstrate that the luminescence properties depend strongly on the chain conformations of the conjugated backbone, which are affected by polymer side chains.

Affiliations:

Australie, France, Moldavie

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Le document en format XML

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<author><name sortKey="Ton That, Cuong" sort="Ton That, Cuong" uniqKey="Ton That C" first="Cuong" last="Ton-That">Cuong Ton-That</name>
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<term>Phenylenevinylene derivative polymer</term>
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<term>Cathodoluminescence</term>
<term>Préparation</term>
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<term>Relation structure propriété</term>
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<front><div type="abstract" xml:lang="en">BACKGROUND: Conjugated polymers, especially those of the poly(phenylene vinylene) (PPV) family, are promising candidates as emission material in light-emitting devices. The aim of this work was to investigate the dependence of the luminescence properties of PPV-based derivatives on their polymer structure, especially side groups. RESULTS: Three PPV derivatives, BEHPPV, MEHPPV and MEHSPPV, were synthesised and characterised by photoluminescence (PL) and cathodoluminescence (CL) spectroscopies in the temperature range 10-300K. PL and CL spectra of the polymers exhibit similar luminescence peaks, which undergo a blue shift with increasing temperature. The shift in wavelength is accompanied by variations in the relative intensities of emission peaks. Both BEHPPV and MEHPPV display emission characteristics of the PPV backbone, but the peak of MEHPPV shifts to a longer wavelength in comparison with the corresponding peak of BEHPPV at the same temperature. The luminescence spectra of MEHSPPV, which has a sulfanyl incorporated in the side chain, are considerably different from those of the two other derivatives. CONCLUSIONS: The results demonstrate that the luminescence properties depend strongly on the chain conformations of the conjugated backbone, which are affected by polymer side chains.</div>
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Luminescence properties of poly(phenylene vinylene) derivatives

Luminescence properties of poly(phenylene vinylene) derivatives

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

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