Research Article

Preparation, Characterization, and Evaluation of Humidity-Dependent Electrical Properties of Undoped and Niobium Oxide-Doped TiO2 : WO3 Mixed Powders

Figure 5

Nyquist plots at 20°C for the samples TiW-Nb2 (a), TiW-Nb4 (b), and TiW-Nb6 (c) (black, orange, dark green, brown, rose, purple, grey, red, light blue, and light green stand for 10, 20, 30, 40, 50, 60, 70, 80, 90, and 100% RH).
(a)
(b)
(c)