Solar-cell device with efficiency-improving nanocoating and method of manufacturing thereof

摘要

A solar cell device of improved efficiency consists of a photovoltaic solar cell and an efficiency-improving antireflective nanocoating film that is applied on the solar cell and interacts with the photovoltaic process of the cell. The coating film has a thickness ranging from 100 nm to 100 μm, and comprises a dielectric material that contains metal nanoparticles having dimensions from 4.5 to 10 nm and concentration ranging from 1 to 5%. The effect of improved efficiency is presumably obtained due to organization of nanoparticles into specific clusters. The method of manufacturing the solar-cell device of the invention comprises preparation of the polymer solution that contains uniformly dispersed metal nanoparticles of silver, gold, or another diamagnetic metal and forming the aforementioned coating film by heat-treating and drying the applied solution under specific conditions.