Tailoring of temperature coefficient of capacitance (TCC) in nanocomposite capacitors

BaTiO3–polyethersulfone nanocomposites with high dielectric constant and excellent thermal stability

“…The glass transition temperature of the composites was determined using a differential scanning calorimeter (DSC) (Diamond DSC, PerkinElmer Instruments) under a nitrogen gas atmosphere with a heating rate of 20°C/min. (220) reflection around 45°that distinguishes the tetragonal from the cubic phase is not observed, which reveals a cubic crystal structure of the powders [18]. The cubic crystal structure of BaTiO 3 powders remains unchanged in the BaTiO 3 -PES composites, indicating a good stability of the crystal structure of BaTiO 3 in the process of composite preparation.…”

CaCu3Ti4O12 ceramics from basic co-precipitation (BCP) method: Fabrication and properties

“…Since the discovery of high permittivity (∼10 4 at 1 kHz) in CCTO by Subramanian et al [1], CCTO has become a promising candidate to replace commonly used high-dielectric materials (e.g. BaTiO 3 , PCT) with relatively low dielectric constants [2][3][4]. A wealth of theoretical investigation has been carried out in order to account for the origin of the giant dielectric permittivity of CCTO.…”

Preparation and dielectric properties of CaCu3Ti4O12–polyethersulfone composites

“…Ceramic–polymer composites with high dielectric constant have been studied widely due to their good fabrication process, low cost, and potential applications in many fields, such as dielectric films in embedded capacitors and electric energy storage devices 1–5. In order to achieve a high dielectric constant ceramic–polymer composite, ferroelectric ceramics, such as BaTiO 3 (BT), Pb(Zr,Ti)O 3 (PZT), and Pb(Mg 1/3 Nb 2/3 )O 3 ‐PbTiO 3 (PMT‐PT) are utilized as the ceramic fillers because of their high dielectric constant 6–8.…”