Please use this identifier to cite or link to this item: https://scholar.ptuk.edu.ps/handle/123456789/284
Title: Investigations of optical properties of MEH-PPV/ZnO nanocomposites by photoluminescence spectroscopy
Authors: Musa, Ishaq
Keywords: ZnO nanoparticles
MEH-PPV UV–Vis spectroscopy
Photoluminescence spectroscopy
Time-resolved photoluminescence
Issue Date: Nov-2012
Publisher: Elsevier- Synthetic Metals
Citation: 25
Series/Report no.: 162;1756-1761
Abstract: The optical properties of hybrid composite films based on poly [2-methoxy-5-(2-ethyl-hexyloxy)-1,4-phenylene-vinylene] (MEH-PPV) and zinc oxide (ZnO) nanoparticles of various sizes (5–20 nm) and with different concentrations have been investigated. The steady-state and time-resolved photoluminescence (PL) spectroscopy have been performed on nanocomposite films at room temperature. The PL results showed a significant enhancement in intensity in nanocomposites when using low nanoparticle concentrations (<5% ZnO). The particle size also impacts on the emission intensity by a larger emission efficiency in thin films containing small particles. In addition, a decrease in the photoluminescence lifetime of MEH-PPV composites has been also observed. Analysis of the time resolved PL decay of nanocomposite films suggests an energy transfer process from the nanoparticles to the polymer chains, in agreement with the steady state measurements.
URI: https://scholar.ptuk.edu.ps/handle/123456789/284
Appears in Collections:Applied science faculty

Files in This Item:
File Description SizeFormat 
musa2012.pdf1.26 MBAdobe PDFThumbnail
View/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.