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 .
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(b) |
(c) |
(d) |