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Ton-That, C., Phillips, M. R. & Nguyen, T.-P. (2008) Blue shift in the luminescence spectra of MEH-PPV films containing ZnO nanoparticles. J. Lumines. 128 2031–2034. 
Added by: Laurent Cournède (2016-03-10 21:58:40)
Type de référence: Article
DOI: 10.1016/j.jlumin.2008.07.004
Numéro d'identification (ISBN etc.): 0022-2313
Clé BibTeX: TonThat2008
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Catégories: PMN
Mots-clés: conjugated polymer, nanocomposites, nanocrystals, nanoparticles, photoluminescence, ppv, raman, solar-cells, ZnO
Créateurs: Nguyen, Phillips, Ton-That
Collection: J. Lumines.
Consultations : 13/479
Indice de consultation : 2%
Indice de popularité : 0.5%
Résumé     
Luminescence properties of nanocomposites consisting of ZnO nanoparticles in a conjugated polymer, poly [2-methoxy-5-(2'-ethyl hexyloxy)-phenylene vinylene] (MEH-PPV), were investigated. Photoluminescence measurements reveal a blue shift in the emission spectrum of MEH-PPV upon incorporation of ZnO nanoparticles into the polymer film while the emission is increasingly quenched with increasing ZnO concentration. In contrast, the structure of the polymer and its conjugation length are not affected by the presence of ZnO nanoparticles (up to 16 wt\% ZnO) as revealed by Raman spectroscopy. The blue shift and photoluminescence quenching are explained by the separation of photogenerated electronhole pairs at the MEH-PPV/ZnO interface and the charging of the nanoparticles. Crown Copyright (C) 2008 Published by Elsevier B.V. All rights reserved.
Added by: Laurent Cournède  
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