The incorporation of SiO2 nanoparticles in poly(p-phenylenevinylene)(PPV) for PPV/SiO2 nanocomposite |
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Authors: | Sook Yoon Ki Hyun Yoon Hyung-Ho Park |
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Affiliation: | 1. Department of Ceramic Engineering, Yonsei University, 134 Shinchon-Dong, Seodaemun-Ku, Seoul, 120-749, South Korea
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Abstract: | The changes in surface morphology and current-voltage characteristics of poly(p-phenylenevinylene)(PPV) thin film has been studied by varying the amount of incorporated SiO2 nanoparticles. The electronic structure of carbon atom in PPV and PPV/SiO2 nanocomposite films was studied by using near-edge X-ray absorption fine structure. The surface morphology of PPV/SiO2 nanocomposite film was found to be greatly dependent on the amount of incorporated SiO2 nanoparticles. The current–voltage behavior of PPV/SiO2 nanocomposite film was mainly dependent on the surface morphology of the film. The excess content of SiO2 nanoparticles in PPV/SiO2 nanocomposite film was revealed to induce an agglomeration of SiO2 nanoparticles where blocking of electronic conduction happens. |
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