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IMPEDANCE CHARACTERISTICS of La3/2Bi3/2Fe5O12 CERAMICS
(World Scientific Publ Co Pte Ltd, 2009-10-20)
Polycrystalline La3/2Bi3/2Fe5O12 (LBIO) compound was prepared by a high-temperature solid-state reaction technique. The complex impedance of LBIO was measured over a wide temperature (i.e., room temperature to 500 C) and ...
Comparison of activation energies for the electrical conductivity of silicate glasses obtained by dc and ac techniques
(2017-03-01)
The electrical conductivity of glasses with composition (mol%) 22Na2O·8CaO·65SiO2·5MO2 (M = Si, Ti, Ge, Zr, Sn, Ce) was evaluated by two different experimental methods: low-voltage ac impedance and high-voltage dc resistivity. ...
Interleaved Boundary Conduction Mode Versus Continous Conduction Mode Magnetic Volume Comparison in Power Converters
(Institute of Electrical and Electronics Engineers, 2016-12)
Power converters operating in boundary conduction mode (BCM) can benefit from an efficiency increase compared to continuous conduction mode (CCM) based on the soft-switching transitions at turn-on and/or turn-off. However, ...
Study of the electrical conduction process in natural rubber-based conductive nanocomposites filled with cellulose nanowhiskers coated by polyaniline
(2021-03-01)
In the present work, the electrical properties of a natural rubber-based nanocomposite (NR) filled with cellulose nanowhiskers (CNW) coated with polyaniline (PANI) were studied. We developed a statistic model that simulates ...
Metal-insulator transitions in pressed pellets of BF4 - doped poly(3-methylthiophene)
(1997-12-01)
From Electron Spin Resonance (ESR) data in pressed pellets of BF4 - doped Poly(3-methylthiophene) (P3MT) we obtained simultaneously the paramagnetic susceptibility and. the microwave conductivity. We observed a transition ...
Magnetic and Conducting Properties of Composites of Conducting Polymers and Ferrite Nanoparticles
(Institute Of Electrical And Electronics Engineers, 2013-07-23)
Composites of ferromagnetic nanoparticles and two conducting polymers (polyethylenedioxythiophene-PEDOT- and polypyrrole-Ppy-) were prepared and characterized. Both syntheses were performed by monomer polymerization in ...
Comparison Of Activation Energies For The Electrical Conductivity Of Silicate Glasses Obtained By Dc And Ac Techniques
(Elsevier Science BVElsevier Science BV, 2017)
Proton conduction mechanisms in GPTMS/TEOS-derived organic/silica hybrid films prepared by sol-gel process
(2020-09-01)
In this work, we employed impedance spectroscopy measurements to investigate the electrical properties of hybrid films obtained with the sol-gel process using 3-glycidoxypropyltrimethoxysilane (GPTMS) and tetraethylorthosilicate ...
Grain boundary conductivity of heterogeneous ceria gadolinia
(Pergamon-elsevier Science LtdOxfordInglaterra, 2012)
DC bias electric field effects on ac electrical conductivity of MAPbI3suggesting intrinsic changes on structure and charge carrier dynamics
(2021-11-24)
Methylammonium lead iodide (MAPbI3) emerges as a promising halide perovskite material for the next generation of solar cells due to its high efficiency and flexibility in material growth. Despite intensive studies of their ...