Comparative analysis of photoconversion efficiency in the Si solar cells under concentrated illumination for the standard and rear geometries of arrangement of contacts.

In quite realistic approximations, the theory of photoconversion in Si solar cells with the concentrated illumination is developed for the rear and standard arrangement of current-collecting contacts. The difference between the effect of heating on the efficiency of solar cells with the rear and standard geometries is taken into account. A comparative analysis of the results obtained for two mentioned geometries is carried out. It is shown that the Si solar cells with the rear metallization, in principle, can possess higher photoconversion efficiency. The agreement of the developed theory with the experiment is obtained. [ABSTRACT FROM AUTHOR]