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Title: Influence of semiconductor and metal nanoparticles on the dielectric properties of ionic matrix cadmium octanoate
Other Titles: Вплив напівпровідникових та металевих наночастинок на діелектричні властивості іонної матриці октаноата кадмію
Authors: Zhulai, Dmytro
Fedorenko, Denys
Kovalchuk, Alexander
Bugaychuk, Svetlana
Klimusheva, Gertruda
Mirnaya, Tetyana
Keywords: Ionic liquid crystal
Dielectric conductivity
Au quantum dots
Issue Date: 2-Jan-2015
Citation: Kovalchuk A. Influence of semiconductor and metal nanoparticles on the dielectric properties of ionic matrix cadmium octanoate / Dmytro Zhulai, Denys Fedorenko, Alexander Kovalchuk, Svetlana Bugaychuk, Gertruda Vasylivna Klimusheva and Tetyana Alfredivna Mirnaya // Nanoscale Research Letters.- 2015.- .-10:66, pp. 1-6
Abstract: Dielectric properties of ionic composites consisted of cadmium octanoate matrix and semiconductor or metal nanoparticles have been investigated. The nanoparticles of different nature (semiconductor CdS, metal Au, and metal core-semiconductor shell Au-CdS) were chemically synthesized in the smectic A phase of (Cd+2(C7H15COO)−2, CdC8) that was used as a nanoreactor. These nanocomposites are very stable and well ordered; the size and shape of the nanoparticles (NPs) are well controlled during the synthesis. The main aim of the research was to examine the influence of nanoparticles on the dielectric properties of ionic matrix, which has smectic A ordered structure. Electrical characteristics were investigated at different temperatures, which correspond to different phases of the material. The conductivity of nanocomposites has an activation nature. The electrical conductivity anisotropy confirms the structural anisotropy of the nanocomposites. The conductivity of the nanocomposite along the cation-anion layers is higher by 2 orders of magnitude than that across the cation-anion layers. Basing on the experimental data, we proposed the simple model of the charge carriage process.
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