Plasma current—voltage characteristics

Figure 31. Current-voltage characteristics of an electric probe. The ion and electron current are f and 1, and the floating and plasma potentials are Vf and Vp, respectively.

Effects of Plasma-Polymerized Film on the Current-Voltage Characteristics of Single Probe... 

Figure 3. Current-voltage characteristics for plasma-polymerized hexameihyl-disilazane (film thickness 0.87 m)...

When Pq and the interelectrode gap (d) have values greater than a specified value (Pq, d>20 mil Torr), the cesium ionizes and forms a plasma, referred to as the ignited mode. In this ignited mode, an output current density more than ten times that for the unignited mode is obtained. The output current-voltage characteristics obtained at Tg = 1800 K, 7 = 1000 K and Tg = 497 561 K are shown in Figure 7. 

Figure 5.41 Current-voltage characteristics of the near-electrode region (a) and within the dielectric film at the electrode surface (b) during the plasma electrolysis discharge process. (Adapted from Yerokhin ef al. (1999).)...

The films and devices were characterized by inductive-coupled plasma spectrometry (ICP), Auger electron spectroscopy (AES), X-ray diffraction, electron-probe microanalysis (EPMA), current-voltage characteristics, and spectral response. 

The general current voltage relation characteristic of a small spherical probe with large counterelectrodes immersed in a neutral plasma is shown in Fig. 3.12. 

Nonlinear current-voltage (I-V) characteristics can be obtained with a silicon nitride (SiNx) layer. Figure 3 shows across sectional view of a system which consists of met-al/off-stoichiometric-SiNx/ITO formed on a glass substrate. The transparent electrode (ITO) film is deposited on the lower glass and photo-etched to form a separate pixel electrode. Afterwards, a SiN layer is deposited by RF-plasma CVD (chemical vapor deposition). I-V characteristics for a conventional TFD are not completely polarity-symmetric due to differences between the upper and lower SiN interface barriers. In order to cancel these differences and to obtain symmetric I-V characteristics, the... 

An electrode is positioned at either end of the tube, and a large voltage applied. When current first passes between the electrodes, the neon is ionized to form a plasma, and starts to glow (as above), which explains why a sodium lamp first emits a pink shade before it glows with its characteristic orange colour. 

FIGURE 6.9 Current density vs. bias voltage (a) and luminance vs. current density (b) characteristics of identical devices made on ITO anodes treated under different oxygen plasma conditions. 

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