The invention relates to the field of anti-reflective coatings, in particular to a
solar cell anti-reflective
coating. The self-cleaning
solar cell anti-reflective
coating is characterized in that transparent tempered glass serves as base materials, the anti-reflective
coating comprises three coating bodies, namely the
silicon dioxide coating body, the
titanium dioxide coating body and the
silicon dioxide coating body, the
silicon dioxide coating body, the
titanium dioxide coating body and the
silicon dioxide coating body are sequentially arranged from the side close to the transparent tempered glass to the outside, the reference
wavelength is the 800-nm
wavelength, a
sol-
gel method is adopted for the
silicon dioxide coating body close to the transparent tempered glass, the optical thickness of the
silicon dioxide coating body is one fourth of the reference
wavelength, magnetron
sputtering coating is adopted for the
titanium dioxide coating body, the optical thickness of the
titanium dioxide coating body is a half of the reference wavelength, magnetron
sputtering coating is adopted for the silicon dioxide coating body on the outer side, and the optical thickness of the silicon dioxide coating body is one fourth of the reference wavelength. According to the self-cleaning
solar cell anti-reflective coating, the
photocatalysis self-cleaning function of
titanium dioxide and the hydrophobicity of nanoscale silicon dioxide are sufficiently used, the light conversion rate can be increased by 1%, the durability of the glass of the anti-reflective coating can be further improved, a solar
cell panel can be easily applied outdoors for a long time, and the cost of
solar power generation is greatly saved.