Experimental Study of Some Effective Surface Parameters of Crystalline Silicon Solar Cell for Getting Better Performance

This experimental study focoused on the analysis and optimization of some effective surface parameter like reflectance, series resistance, fill factor and surface recombination velocity to enhance the performance of Si solar cell. Near sub wave length structure is introduced to overcome the contact problem of nano texturization where reflection loss is less than micro texturization. Screen printing technique is the low cost industrial established process but it also raises some unwanted problem which reduces the fill factor. Light Induced Plating (LIP) of c-Si solar cell is a critical process generally leading to increase in fill factor and efficiency associated with marginal reduction in short circuit current (J(sc)). In this paper, the increase in J(sc) is reported at the LIP treated solar cell due to unintentional deposition of silver nanoparticle on the surface of solar cell. The array of silver nanoparticle on the Si surface results into plasmonic effect as evidence by the reduction of reflectance and increase in external quantum efficiency without depositing added nano particles. Also, new type of texturization, contact optimization and better LIP treatment are reported.