Topic
Dielectric loss
About: Dielectric loss is a research topic. Over the lifetime, 20296 publications have been published within this topic receiving 349254 citations.
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TL;DR: In this paper, the evaporation of inorganic materials suitable for making thin dielectric layers for capacitors is discussed, and the electrical properties of some glasses are given.
82 citations
TL;DR: In this paper, dielectric properties of the gel electrolytes based on PVA and PVA-PEG prepared in NH4SCN (ammonium thiocyanate) solution have been studied in the temperature range 273 −373 K over the frequency range 40 −100 KHz.
82 citations
TL;DR: A series of polyarylene ether nitriles were synthesized by the nucleophilic aromatic substitution polymerization of 2, 6-dichlorobenzonitrile with various bisphenol monomers as mentioned in this paper.
82 citations
TL;DR: In this article, a clear structure-property relationship between chemical functionalities and dielectric properties was reported in a series of polyurea and polyurethane thin films.
82 citations
TL;DR: This work first investigates the CP behavior of rutile TiO2 ceramics co-doped with niobium and erbium, and may provide comprehensive guidance to develop high-performance CP materials for fully solid-state capacitor and energy storage applications.
Abstract: The search for colossal permittivity (CP) materials is imperative because of their potential for promising applications in the areas of device miniaturization and energy storage. High-performance CP materials require high dielectric permittivity, low dielectric loss and relatively weak dependence of frequency- and temperature. In this work, we first investigate the CP behavior of rutile TiO2 ceramics co-doped with niobium and erbium, i.e., (Er0.5Nb0.5)xTi1−xO2. Excellent dielectric properties were observed in the materials, including a CP of up to 104–105 and a low dielectric loss (tanδ) down to 0.03, which are lower than that of the previously reported co-doped TiO2 CP materials when measured at 1 kHz. Stabilities of frequency and temperature were also accomplished via doping Er and Nb. Valence states of the elements in the material were analyzed using X-ray photoelectron spectroscopy. The Er induced secondary phases were observed using elemental mapping and energy-dispersive spectrometry. Consequently, this work may provide comprehensive guidance to develop high-performance CP materials for fully solid-state capacitor and energy storage applications.
82 citations