Optimization of antireflective coatings to crystalline silicon solar cell
2013
Based on varieties of dielectric film materials with different refractive rate, this paper has designed antireflective coatings to crystalline silicon solar cell front surface in transfer matrix method (TMM). The optical absorption effect showed by single, double, three layer antireflection coatings and the incident light with different angle of incidence are analyzed and evaluated. Results show that: when 360nm 2 |Si 3 N 4 double layer dielectric film is minimum; among three layer dielectric film, the MgF 2 |Al 2 O 3 |Si 3 N 4 three layer dielectric film reflection loss is very low. In the three layer antireflection film structure and for different incident angles, the reflectivity of incident light can be reduced basically under 10%, and all regions of the spectrum absorption of the silicon material are made good use.
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