Research Article

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

Figure 3

Diffraction patterns of a nondoped sensor (a) and of the -doped sensors with 2% (b), 4% (c), and 6% (d) of .
(a)
(b)
(c)
(d)