journal article·2016-09

Structural, photoconductivity, and dielectric studies of polythiophene-tin oxide nanocomposites

S. Murugavel, M. Malathi

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Abstract

Abstract Polythiophene-tinoxide (PT-SnO 2 ) nanocomposites were prepared by in situ chemical oxidative polymerization, in the presence of various concentrations of SnO 2 nanoparticles. Samples were characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, thermogravimetric analysis, X-ray photoelectron spectroscopy and Zeta potential measurements. Morphologies and elemental compositions were investigated by transmission electron microscopy, field-emission scanning electron microscopy and energy-dispersive X-ray spectroscopy. The photoconductivity of the nanocomposites was studied by field-dependent dark and photo conductivity measurements. Their dielectric properties were investigated using dielectric spectroscopy, in the frequency range of 1kHz–1 MHz. The results indicated that the SnO 2 nanoparticles in the PT-SnO 2 nanocomposite were responsible for its enhanced dielectric performance.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Conducting polymers and applications · Analytical Chemistry and Sensors · Gas Sensing Nanomaterials and Sensors

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