☆ 4.5 Article

Tunable photoluminescence of poly(phenylene vinylene) nanofibers by doping of semiconductor quantum dots and polymer

SYNTHETIC METALS (2010)

Journal

SYNTHETIC METALS

Volume 160, Issue 13-14, Pages 1382-1386

Publisher

ELSEVIER SCIENCE SA

DOI: 10.1016/j.synthmet.2010.01.039

Keywords

Nanofibers; QDs; Photoluminescence; Poly(phenylene vinylene); Composite

Categories

Materials Science, Multidisciplinary Physics, Condensed Matter Polymer Science

Funding

NSFC [20474008, 20872030, 20910204040, 20672032]
China Postdoctoral Foundation
Elitist Foundation of Heilongjiang University
Abroad Person with Ability Foundation of Heilongjiang Province [1154H01]
Youthful Technology Innovation Talent Foundation of Harbin [2007RFQXG096, GC09A402]

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Abstract

In this paper, we report the effects of polyvinyl alcohol (PVA) and CdS quantum dots (QDs) on the photoluminescence (PL) properties of poly(phenylene vinylene) (PPV) nanofibers. The composite nanofibers were fabricated by coupling self-assembly and electrospinning method. A significant blue shift in both PL spectra and fluorescence images of PPV fibers was observed after doping of CdS QDs and PVA in succession. It was found that the changes in PL spectra of PPV originated from the chemical interactions between PPV and PVA, and the changes in the crystallization of PPV itself. A possible PL mechanism was proposed accordingly. (C) 2010 Published by Elsevier B.V.

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