, Volume 38, Issue 12-14, pp 1115-1123
Date: 16 Jan 2007

Optical and electrical modeling of Cu(In,Ga)Se2 solar cells

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Abstract

In this work numerical modeling of Cu(In,Ga)Se2 (CIGS) thin-film solar cells is presented. The main features of the optical simulator SunShine and the electrical simulator Aspin that are used for solar cell analysis are demonstrated. Modeling of light scattering at rough interfaces in the solar cell structures is described. The two descriptive scattering parameters that are used in optical simulations are the haze parameter and the angular distribution function of scattered light. The results of optical and electrical simulations of a thin CIGS solar cell with an absorber layer thickness of 360 nm are presented. The calculated external parameters of the solar cell are verified with the experimental data.