Electronic Modeling and Optical Properties of CuIn_0.5Ga_0.5Se₂ Thin Film Solar Cell

Rongzhen Chen, Clas Persson

1Department of Materials Science and Engineering, Royal Institute of Technology, Stockholm, Sweden 2Department of Physics, University of Oslo, Oslo, Norway.
Department of Materials Science and Engineering, Royal Institute of Technology, Stockholm, Sweden.

DOI: 10.4236/jamp.2014.21007                

Abstract

In this work, the band structure and optical-related properties of CuIn0.5Ga0.5Se2 thin film are presented. The calculation is performed by the full-potential linearized augmented plane wave (FPLAPW) method. The spin-orbit coupling is considered. The result for the dielectric function is in good agreement with earlier experimental measurements and simulations. Based on the complex dielectric function, the dielectric constant, the absorption coefficient, the complex refractive index and the reflectivity at normal incidence are explored. We found that they are comparable with the earlier results.

Keywords

Thin Film; CuIn0.5Ga0.5Se2; Band Structure; Dielectric Function; Dielectric Constant; Absorption Coefficient; Complex Refractive Index; Reflectivity; Spin-Orbit Coupling

Conflicts of Interest

The authors declare no conflicts of interest.

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