Optical and Sensing Properties of Cu Doped ZnO Nanocrystalline Thin Films

Figure 9

Variation of sensitivity of undoped and Cu doped ZnO thin film samples at various CO₂ concentrations with temperature. Here (a), (b), and (c) correspond to samples Z2, Z2C1, and Z2C2, respectively, prepared using precursor solution of molarity 0.15 M.

(a)

(b)

(c)