Improved Indium-Free Transparent ZnO/Metal/ZnO Electrode through a Statistical Experimental Design Method

Figure 5

Dependence of transmittance of (a) AZ and (b) ZAZ on the thickness of the inserted Ag films and (c) transmittance at the wavelength of 550 nm of Ag, ZA, and ZAZ as a function of the Ag thickness.

(a)

(b)

(c)