期刊
MATERIALS CHEMISTRY AND PHYSICS
卷 83, 期 2-3, 页码 334-339出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2003.10.003
关键词
composite materials; luminescence; conjugated polymer; particulate sol
The dispersion effect of nanoparticles on the conjugated polymer was investigated in terms of the optical and electronic properties of poly(p-phenylenevinylene) (PPV) and PPV/TiO2 nanocomposites. The photoluminescence (PL) and Fourier transform-infrared (FT-IR) spectra showed that agglomerated nanoparticles reduced the conformational disorder of the PPV segments and impeded the elimination reaction of tetrahydrothiophene. The current density and light output of the device using a particulate sol were highest at low voltage, while the current density and light output of the device using nanopowder were higher than those of the device using a particulate sol in the high field region because of the enlarged interface with an Al electrode. (C) 2003 Elsevier B.V. All rights reserved.
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