I have deposited ZnO:Al (Transparent conductive oxide) on textured-Si substrate. Since textured surfaces itself work as graded refractive index between air and the bottom of the textures and hence, improve antireflection, now what is the role of thin film coating on textured surfaces to further improve the antireflection.
If it can be explained by destructive interference of reflected light rays then what is the role of local curvatures of textured surfaces and how it can be incorporated in the interference theory for AR coating?
So, what about other materials, lets say non-textured? For example, if you will coat atomic flat mica - what would be the lights reflex?
Hi Mahesh, reading your question, leads me to wonder, does the textured surface really help antireflection, or do you simply just not see it so much as it is now produced at random scattering angles, rather than at a particular uniform angle of incidence?
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