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The optical properties of poly(phenylenevinylene) (PPV)/TiO 2 nanocomposites, prepared via the sol–gel process, were investigated by UV–VIS, FT-IR, FL spectroscopy and TEM. TEM images indicated that the surfaces of TiO 2 nanoparticles became rough, and finally formed the connected network as the TiO 2 content increased. FT-IR spectra showed the titanium butoxide hydrolyzed...
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