BIDIM2: numerical simulator of solar cells in two-dimensions

The numerical analysis of semiconductor devices is nowadays a need in the design and optimization of their performances. High efficiency solar cells with 2-dimensional geometries are governed by non-linear effects and require powerful simulators for their study. In this paper we present BIDIM2, a software program specially oriented to the numerical analysis of solar cells. It has been developed in Windows, and uses the finite differences method with a new iterative scheme for numerical resolution of semiconductor equations. Besides, BIDIM2 appears as a good candidate to link fitting procedures of experimental characteristics and numerical tools, to obtain the internal parameters of solar cells. This work has been made under the sponsorship of the Spanish CICYT and their contract TIC-0362.