Search
Now showing items 21-27 of 27
Flexible lead-free NBT-BT/PVDF composite films by hot pressing for low-energy harvesting and storage
(Elsevier Science Sa, Lausanne, 2021)
The idea of this work is finding the way to efficiently and safely use mechanical energy released in small quantities around us to power up small-scale electronic devices used in everyday life. To this purpose, flexible ...
Controllable morphology, dielectric, magnetic and reflection loss characteristics of ferrite/wax composites for low-loss applications
(Elsevier Science Sa, Lausanne, 2021)
In this work, composites of M-type Ba(1-x)SrxFe12O19 hexagonal ferrite (x=0.0, 0.2, 0.4, 0.6, 0.8 and 1.0) and paraffin wax have been prepared. Microwave characterization of the prepared composites was performed with a ...
Far infrared reflectivity spectra of lead-telluride doped with Ytterbium
(Elsevier Science Sa, Lausanne, 2008)
Single crystal samples of lead-telluride doped with Ytterbium were made using the Bridgman method. Far infrared reflectivity spectra in the temperature range from 10 to 300 K were measured. Analysis of the experimental ...
Influence of tungsten doping on dielectric, electrical and ferroelectric behavior of BaBi4Ti4O15 ceramics
(Elsevier Science Sa, Lausanne, 2017)
The effect of tungsten (W6+) doping on modification of the structure, dielectric, ferroelectric and electrical properties of BaBi(4)Ti(4-x)WxO(15) (BBTWx, x = 0, 0.03, 0.05 and 0.07) was investigated. The ceramic samples ...
Interdependence between structure and electrical characteristics in Sm-doped barium titanate
(Elsevier Science Sa, Lausanne, 2017)
Conventional solid-state method was used to prepare powders of pure and barium titanate (BT) doped with different concentration of samarium. Influence of samarium addition on the structure modification, grain growth ...
Surface optical phonons in ZnO(Co) nanoparticles: Raman study
(Journal of Alloys and Compounds, 2012)
Surface optical phonons (SOP) were observed in the range of 496–572 cm−1 on Raman scattering spectra of nanocrystalline samples of ZnO(Co) prepared by use of the microwave assisted hydrothermal synthesis and traditional ...
Optical properties and plasmon – Two different phonons coupling in ZnGeAs2 + Mn
(Journal of Alloys and Compounds, 2013)
Optical properties of p-type Zn1−xMnxGeAs2 for 0 ⩽ x ⩽ 0.078 were investigated by Raman spectroscopy at room temperature. Phonons of ZnGeAs2 are experimentally determined and they are in excellent agreement with those ...