Optical and Sensing Properties of Cu Doped ZnO Nanocrystalline Thin Films

Figure 10

(a) Variation of sensitivity of undoped and Cu doped ZnO thin film samples at 500 ppm CO₂ concentration with temperature. (b) Variation of sensitivity of undoped and Cu doped ZnO thin films sample at 1000 ppm CO₂ concentrations with temperature. (c) Variation of sensitivity of undoped and Cu doped ZnO thin films sample at 2000 ppm CO₂ concentrations with temperature. (d) Variation of sensitivity of undoped and Cu doped ZnO thin film samples at 4000 ppm CO₂ concentration with temperature.

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