ELECTRICAL CONDUCTIVITY OF POLYMER COMPOSITE PP-VO2
Journal Title: Сенсорна електроніка і мікросистемні технології - Year 2018, Vol 15, Issue 4
Abstract
The work presents the results of the study of the electrical conductivity of the direct current samples of a polymer composite polypropylene-vanadium dioxide with a volume fraction of VO2 from 0.1 to 0.7. It is shown that the conductivity of composites has a percolation character. The percolation transition is in the range of 0.3-0.35 volumetric particles of vanadium dioxide. The volt-current characteristics of samples of a composite with a content of VO2 of more than 0.35 have an S-shaped shape. In the temperature dependence of the electrical resistance of the samples of composites, a jump-like decrease in resistance was found in the region of the temperature of the phase transition of the semiconductor-metal in VO2. Features in the behavior of electrical conductivity of polymer composites PP-VO2, discovered in this work, allow us to talk about the possibility of creating on their basis critical thermoresistive elements.
Authors and Affiliations
V. R. Kolbunov, O. V. Vasheruk
Keywords
Related Articles
- EP ID EP491622
- DOI 10.18524/1815-7459.2018.4.150514
- Views 93
- Downloads 0
NATIONAL ACADEMY OF SCIENCES OF UKRAINE: HISTORY OF BECOMING, SUCCESS, PROBLEMS AND PERSPECTIVES
The article is devoted to the review and analysis of the formation and the 100-year activity of the National Academy of Sciences of Ukraine, which was established on November 27, 2018. It should be noted that at differen...
RESEARCH COMMON MODE REJECTION IN CONDUCTOMETRIC BIOSENSOR SYSTEM WITH DIFFERENTIAL SENSORS
In the article are given theoretical and experimental evaluation of errors which arise due to incomplete suppression of common-mode noise on a differential sensor. The improved scheme of the measuring channel is suggeste...
OPTIMIZATION OF AMPEROMETRIC BIOSENSOR FOR EVALUATION OF RATE OF GLUTAMATE UPTAKE BY ISOLATED BRAIN NERVE TERMINALS
An amperometric glutamate biosensor was developed and adapted for analysis of velocity of glutamate uptake by isolated nerve terminals of rat’s brain. Glutamate oxidase was used for creation of biomembrane of the biosens...
IR-PHOTOELECTRONICS: PHOTON OR THERMAL DETECTORS? OUTLOOKS
Abstract. Infrared (IR) detectors play now an increasing role in different areas of human activity (e.g., in environmental surveillance, fire safety control, communications, space surveillance of the Earth, medical diagn...
PHYSICAL PROCESSES THAT DETERMINE THE BEHAVIOR OF CURRENT IN N-ZNO/P-SI HETEROJUNCTIONS CREATED BY RF MAGNETRON SPUTTERING
By setting down of ZnO thin films onto p-Si substrates by reactive high-frequency magnetron sputtering method at different growth temperatures and ratios of oxygen and argon partial pressures n-ZnO/p-Si heterostructures...