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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 31, Number 10
BKCSDE 31(10)
October 20, 2010

Title	Surface Morphology and Electron Transport Properties of Composite Films by Poly-N-vinylcarbazole/Polyaniline
Author	C Basavaraja, Eun Ae Jo, Bong Sung Kim, H Mallikarjuna, Do Sung Huh*
Keywords	DC conductivity, Morphology, Polyaniline, Poly(N-vinylcarbazole)
Abstract	Poly-N-vinylcarbazole/polyaniline (PVK-PANI) composites are synthesized by varying target loading concentrations of aniline (0.025 - 0.1 M). The surface morphology of the composites is studied by scanning electron microscopy (SEM) and atomic force microscopy (AFM). The temperature-dependent DC conductivity of PVK-PANI composite films was studied at the temperature range of 300 - 500 K. The data suggest that the conductivity increase with an increase in aniline concentration in the composite with an increase in temperature. Further based on the conductivity behavior we can suggest that the PVK-PANI composites show a semiconducting behavior with a positive temperature coefficient of resistivity (TCR). The enhanced conductivity and the positive TCR of the PVK-PANI composite films may be due to the strong interaction between PANI and PVK in the composite films.
Page	2967 - 2972
Full Text	PDF

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