Abstract:
In this paper, an analytical model of a proposed low-cost high efficiency NPN silicon-based
solar cell structure is presented. The structure is based on using low cost heavily doped commercially
available silicon wafers and proposed to be fabricated by the same steps as the conventional solar cells
except an extra deep trench etch step. Moreover, the cell has been engineered to react to the UV spectrum,
resulting in a greater conversion performance. The presented analytical model takes the electrical and
optical characteristics into account. Thus, the influence of both physical and technological parameters on the
structure performance could be easily examined. Consequently, the optimization of the structure performance
becomes visible. To inspect the validity of the analytical model, a comparison of the main performance
parameters resulting from the model results with TCAD simulations is carried out, showing good agreement.
