scholarly journals RADIATION LOSS DETERMINATION AT COLLISION OF ELECTRONS WITH LECTRONEGATIVE ATOMS AND IONS IN PLASMA CURRENT SWITCH DISCHARGES. PART II

2021 ◽  
pp. 85-88
Author(s):  
E.I. Skibenko ◽  
V.B. Yuferov ◽  
A.N. Ozerov ◽  
I.V. Buravilov
Keyword(s):  
Particle Concentration ◽  
Power Level ◽  
Radiation Loss ◽  
Plasma Current ◽  
Impurity Particle ◽  
Current Voltage Characteristic ◽  
Plasma Parameters ◽  
Current Switch ◽  
Radiation Losses ◽  
Current Voltage

Specific radiation-loss power values have been determined for a variety of electronegative elements (C, O, F, Cl) as functions of electron temperature and impurity particle concentration. The maximum radiation-loss power level has been registered for chlorine (≤770 W/cm3) at an electron/impurity density of 1014 cm-3. The minimum radiation-loss power level for the other three elements lies in the range from 0.4 to 2 W/cm3. Considerable radiation losses due to the presence of electronegative elements in the interelectrode discharge may lead to its destabilization, to the change in the plasma parameters (ne, Te), and eventually, to degradation of the current-voltage characteristic of the plasma current switch.

Development and Current-Voltage Characteristic of Arc on AMF Contacts at Different Opening Speeds

2021 ◽  
pp. 1-7
Author(s):  
Alexander A. Logachev ◽  
Irina N. Poluyanova ◽  
Konstantin K. Zabello ◽  
Sergey M. Shkol'nik
Keyword(s):  
Voltage Characteristic ◽  
Current Voltage Characteristic ◽  
Current Voltage

Current oscillations and N-shaped current–voltage characteristic in the manganite Sm1−xSrxMnO3

2004 ◽  
Vol 30 (9) ◽  
pp. 736-738
Author(s):  
I. K. Kamilov ◽  
K. M. Aliev ◽  
Kh. O. Ibragimov ◽  
N. S. Abakarova
Keyword(s):  
Voltage Characteristic ◽  
Current Voltage Characteristic ◽  
Current Voltage ◽  
Current Oscillations

Measurement of the electrical properties of a flowing plasma, including a critical comparison of probe experiment and theory

1969 ◽  
Vol 3 (2) ◽  
pp. 161-178 ◽  
Author(s):  
E. W. Billington
Keyword(s):  
Major Axis ◽  
Wire Mesh ◽  
Ion Temperature ◽  
Plasma Parameters ◽  
Direct Exposure ◽  
Current Voltage ◽  
Double Electrode ◽  
Flowing Plasma ◽  
Current Voltage Characteristics ◽  
Mesh Grid

The primary quantities characterizing the electricaJ carriers of a flowing plasma in a low density wind tunnel have been determined from measurements using electrostatic probes immersed in the plasma. With the exception of the ion temperature, the plasma parameters have been obtained from the current—voltage characteristics of two types of single electrode probe. The probes consist of a cylinder, the major axis of which is aligned parallel to the flow of the plasma, and a disk, the exposed surface of which is normal to the direction of flow. Experiments with a double electrode probe consisting of a disk-shaped collector electrode which is screened from direct exposure to the plasma by a fine wire mesh, grid electrode, made it possible to obtain current—voltage characteristics with the ion and electron components separated from one another. From the current—voltage characteristic corresponding to collection of ions, using the screen grid probe, values of the ion temperature and drift velocity have been obtained. The measurements have been made at various points along the centre line of flow, for one particular value of the flow rate using argon as the test gas. For a given position of the probes, one value of the ion temperature has been evaluated, together with two independent values of each of the other primary quantities characterizing the electrical carriers of a flowing plasma. Each pair of values agree satisfactorily amongst themselves, good agreement being generally obtained between probe theory and experiment.

Effects of different tailoring graphene electrodes on the rectification and negative differential resistance of molecular devices

2018 ◽  
Vol 32 (29) ◽  
pp. 1850323
Author(s):  
Ting Ting Zhang ◽  
Cai Juan Xia ◽  
Bo Qun Zhang ◽  
Xiao Feng Lu ◽  
Yang Liu ◽  
...  
Keyword(s):  
Electronic Transport ◽  
Negative Differential Resistance ◽  
Density Functional ◽  
Graphene Nanoribbons ◽  
Differential Resistance ◽  
Voltage Characteristic ◽  
Molecular Devices ◽  
Current Voltage Characteristic ◽  
Functional Theory ◽  
Current Voltage

The electronic transport properties of oligo p-phenylenevinylene (OPV) molecule sandwiched with symmetrical or asymmetric tailoring graphene nanoribbons (GNRs) electrodes are investigated by nonequilibrium Green’s function in combination with density functional theory. The results show that different tailored GNRs electrodes can modulate the current–voltage characteristic of molecular devices. The rectifying behavior can be observed with respect to electrodes, and the maximum rectification ratio can reach to 14.2 in the asymmetric AC–ZZ GNRs and ZZ–AC–ZZ GNRs electrodes system. In addition, the obvious negative differential resistance can be observed in the symmetrical AC-ZZ GNRs system.

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