Enhanced optical transmission of composite nanostructured thick films with quasi-zero refractive index (I. Experimental data)

The article introduces experimental data of optical and photovoltaic measures of thick (approximately 50-80 mkm) films (PMMA + Ag) with silver spherical nanoparticle, proving that the composite nanostructural material synthesized according to the present technology possess unusual features. For example, interference of light in thick films; increased optical transmission of (PMMA + Ag) / glass structures; weak photocurrent angle dependency in a silicon solar cell covered with (PMMA + Ag) film on the outer radiation incidence angle; uniform optical antireflection of glass and silicon in wave length range from 450 to 1000 nm. All these unusual features of the composite materials synthesized by the original technology are caused by their quasi-zero refractive index.