Augmenting CIGS Solar Cell Efficiency through Optimization of Layer Thickness and Front Electrode Transparency

This study examines the use of Copper indium gallium diselenide (CIGS) as the active layer of the cell due to its low cost, superior optical properties, low temperature coefficient, direct bandgap, and high stability. The thickness of the active (CIGS) and buffer (CdS) layers have been optimized using SCAPS-ID to achieve the highest power conversion efficiency (PCE). Additionally, the optical transparency of the front electrode has also been examined, and it is found that front electrode transparency should be high (95%) for optimal device performance. The photovoltaic parameters of the cell were found to be: PCE- 16.26%, Voc- 0. 64V, Jsc- 35. 9SmA/cm2 and FF-70.52%.