Plasma Generation in a Gas Discharge System With Irradiated Porous Zeolite

Ozturk, Sevgul
Ozner, Metin
Bulur, Enver
Salamov, Bahtiyar G.
The influence of pressure [from atmospheric pressure (AP) to 10(-2) torr] and beta-radiation (1-kGy beta doses) on the current-voltage characteristics, charge trapping effects in porous surfaces, and breakdown voltage (UB) in AP microplasmas are discussed for the first time. This is due to the zeolite cathode (ZC) exposure to beta-radiation resulting in substantial decreases in the UB, discharge currents, and conductivity due to increase in porosity of the material. Results indicated the enhancement of plasma light intensity and electron emission from the ZC surface with the release of trapped electrons which are captured by the defect centers following beta-irradiation. The porosity of the ZC and radiation defect centers has a significant influence on the electrical and optical properties of the devices manufactured on its base.


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A novel scheme for ion deposition and possibly ion implantation on the inner surfaces of cylindrical targets is proposed and experimentally tested. A large current is passed through a coaxial table-type structure, composed of a straight conductor and a thin metallic foil, surrounding it. The foil evaporates and ionizes forming a metallic plasma, which is pushed radially outward due to the pressure of the magnetic field, confined to the region between the plasma and the conductor. The ions of the foil materi...
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The effect of hydrothermal aging and SO2 poisoning on the three-way catalytic performance of dispersed Pd/Rh-based and Pd/Rh perovskite-based catalysts were studied by using a dynamic activity test system that simulates redox fluctuations of gasoline engine exhaust conditions. Both catalysts were supported on ceria-zirconia-alumina and wash-coated on cordierite monoliths and were characterized by ICP-OES, BET, XRD, TEM-EDX, DRIFTS, and CO chemisorption. Their performance was very close when the catalysts we...
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Vacuum-processed polyethylene as a dielectric for low operating voltage organic field effect transistors
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We report on the fabrication and performance of vacuum-processed organic field effect transistors utilizing evaporated low-density polyethylene (LD-PE) as a dielectric layer. With C-60 as the organic semiconductor, we demonstrate low operating voltage transistors with field effect mobilities in excess of 4 cm(2)/Vs. Devices with pentacene showed a mobility of 0.16 cm(2)/Vs. Devices using tyrian Purple as semiconductor show low-voltage ambipolar operation with equal electron and hole mobilities of similar to...
Citation Formats
S. Ozturk, M. Ozner, E. Bulur, and B. G. Salamov, “Plasma Generation in a Gas Discharge System With Irradiated Porous Zeolite,” IEEE TRANSACTIONS ON PLASMA SCIENCE, pp. 1839–1844, 2015, Accessed: 00, 2020. [Online]. Available: