Electrical Impedance Spectroscopy of Graphen-E4 Liquid-Crystal Nanocomposite
Electrical Impedance Spectroscopy of Graphen-E4 Liquid-Crystal Nanocomposite
Author(s): Georgi Hadjichristov, Yordan Marinov, Todor Vlakhov, Alexander PetrovSubject(s): Social Sciences, Education, School education, Vocational Education, Higher Education , History of Education, Scientific Life
Published by: Национално издателство за образование и наука „Аз-буки“
Keywords: electrical impedance spectroscopy; graphene-doped liquid crystals; nanocomposite materials
Summary/Abstract: We have examined the electrical response of graphene-nanostructured liquid crystal E7. The nematic E7 was doped with graphene at concentration of 10-3 wt.%. Thin planar-oriented films with a thickness of 7 µm of this nanocomposite were studied by means of electrical impedance spectroscopy in the frequency range from 0.1 Hz to 1 MHz. Their electrical impedance at a room temperature was compared to that of identical films of pure liquid crystal E7 measured under the same experimental conditions. The doping with graphene leads to decrease in electrical conductivity of the studied nanostructured liquid-crystalline material and, thereby, to improvement of its electro-optical performance.
Journal: Химия. Природните науки в образованието
- Issue Year: 27/2018
- Issue No: 5
- Page Range: 648-657
- Page Count: 10
- Language: English
- Content File-PDF