Fig. 7From: Optical Properties of Al-Doped ZnO Films in the Infrared Region and Their Absorption ApplicationsThe structure of void cylinder arrays on AZO/ZnO alternative layers. The radius of the void cylinder arrays is R μm, and the period is P μm. The thickness of 32 layers of AZO/ZnO alternative films is approximately 1.92 μm, each layer being 60 nm thickBack to article page