Figure 5

The sheath asymptotic solution for the normalized electric potential distribution \(\phi_{s}\) for \(\alpha = 10\) and \(\tau = 0\), 0.5 and 1.0 in the sheath space \(\xi\). Note how the ion temperature \(\tau\) decreases the floating potential \(\phi_{f}\) and does not affect on the potential at the plasma-sheath border \(\phi_{b}\).