Electron transport and thermoelectric properties of ZnO ceramics doped with Fe

Федотов, А. К.; Pashkevich, A. V.; Fedotova, J.; Fedotov, A. S.; Kołtunowicz, Tomasz N.; Żukowski, P.; Ronassi, Ali Arash; Федотова, В. В.; Свито, И. А.; Budzyński, M.

doi:10.1016/j.jallcom.2020.156169

Cited by 14 publications

(2 citation statements)

References 27 publications

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“…In the last two decades, the dielectric properties (relative permittivityε re and dielectric loss -tan δ) of polymer nano-composites have been evaluated. They values were lower than in pure polymers and microcomposites when insulating oxides were used as fillers [22], [23], [24], [25], [26]. Many studies have clearly shown that adding some volume of nanoparticles (NPs) to ERs improves several characteristics, such as the dimensional stability, dielectric properties, energy dissipation capabilities, and the high-performance stiffness of polymer composites.…”

Section: Introductionmentioning

confidence: 99%

Study of the Complex Permittivity of a Polyurethane Matrix Modified by Nanoparticles

et al. 2021

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This study presents the influence of various types of nanoparticle (NP) fillers incorporated into a polyurethane (PU) (VUKOL 022) matrix and its subsequent changes in complex permittivity. Two types of surface modification of SiO 2 fillers were investigated. The frequency dependence of the real and imaginary parts of complex permittivity was measured within the frequency range of 1 mHz to 1 MHz using the capacitance method. The 1 wt.% NPs in PU caused an increase (MgO, TiO 2 , n-SiO 2 , and f-SiO 2 ) or a decrease (d-SiO 2 ) in the real permittivity. The α-relaxation and intermediate dipolar effect were observed at the temperature dependence of the imaginary permittivity. The change in permittivity by various surface modifications of SiO 2 and other nanofillers was discussed based on the multi-core model. Moreover, the NPs caused a shift in the local maximum of the permittivity, which was a result of the interfacial polarisation and a charge multiplication of the α-relaxation process.

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Section: Introductionmentioning

confidence: 99%

Study of the Complex Permittivity of a Polyurethane Matrix Modified by Nanoparticles

et al. 2021

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“…Over the years, there has been a great progress in the the1moelectric performance of n-type ZnO based ceran1ics (such as Group 3 elen1ents doping, polymer insertion, morphology modification etc .... ) [1][2][3][4][5][6][7][8]. We recently repo1ted on the them1oelectlic properties of pure zinc OJdde (ZnO) [9].…”

Section: Introductionmentioning

confidence: 99%