Growth Analysis and Numerical Simulation of Cu3BiS3Absorbing Layer Solar Cell through the wxAMPS and Finite Element Method

Abstract

The properties and the e ciency of a semiconductor thin lm depend on the state of stress and defects in the lm structure. When the lm is growing layer by layer, the elastic energy due to deformation stress between the substrate and the lm is released partly due to the formation of dislocations in the critical thickness deformation. In this paper, we present a nite element analysis of the stress state in a thin lm of Cu3BiS3 as a function of thickness and elastic energy release by nucleation of dislocations. Initially, we analyze the stress contours associated with the epitaxial growth and dislocation nucleation and then combine these two in order to study the e ective potential energy state of the system. Finally, the tool wxAMPS is today an important application for simulation of solar cells with high reliability and an improved design over its analysis of microelectronic and photonic structures predecessor, incorporating physical principles concerning photovoltaic phenomena and uses a new method for solving algorithms, combining Newton and Gummel approaches, which provides greater stability and speed of computation.