Enhancing Strategy CIGS Solar Cell Performance Through a New ZnSe Buffer Layer

Boureima Traoré^1, , Soumaïla Ouédraogo¹, Daouda Oubda¹, Marcel Bawindsom Kébré¹, Adama Zongo¹, Issiaka Sankara¹ and Francois Zougmoré¹

¹Department de Physique, Laboratoire de Matériaux et Environnement (LA.M.E)-UFR/SEA, Université Joseph Ki-ZERBO, 03 BP 7021 Ouagadougou 03, Burkina Faso

Cite this paper:
Boureima Traoré, Soumaïla Ouédraogo, Daouda Oubda, Marcel Bawindsom Kébré, Adama Zongo, Issiaka Sankara and Francois Zougmoré. Enhancing Strategy CIGS Solar Cell Performance Through a New ZnSe Buffer Layer. Physics and Materials Chemistry. 2023; 9(1):1-7. doi: 10.12691/pmc-9-1-1

Abstract

In this paper, we use the SCAPS-1D software for the numerical simulation of the Cu(In, Ga)Se₂ (CIGS) solar cell with a ZnSe-based buffer layer. The study focuses on the influence of the ZnSe buffer layer on the performance of the CIGS solar cell. In this study, the analysis of the effect of the ZnSe buffer layer thickness revealed that optimum performance is obtained with a thickness of 0.020 μm. A study of the ZnSe/CIGS interface showed that optimum performance is obtained for a conduction band offset included between -0.2 eV and 0.2 eV and interface defects of less than . By introducing an electron reflector layer at the absorber/molybdenum interface of this solar cell, it emerges that the performance of the ZnSe/CIGS/Mo solar cell is superior to that of the CdS/CIGS/Mo solar cell.

Keywords:
Numerical simulation SCAPS-1D software electron reflector ZnSe buffer layer ZnSe/CIGS interface

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