Efficiency Enhancement of a PCDTBT/PC71 BM-based Organic Solar Cell Through Layer-thickness Optimization

This work aims to enhance the conversion efficiency of an organic solar cell (OSC) based on PCDTBT/PC71BM material through the optimization of the thicknesses of its different layers, namely- the hole transport layer and the active layer. A numerous simulation runs using a SILVACO Atlas based model have been conducted to determine the optimum thicknesses of the said layers. The effects of the layer thickness variation on the various performance parameters of the OSC are discussed through physics-based analysis, which help determine the optimized thickness. The layer optimization finally yields an improved efficiency of the said OSC (≈ 8.8%).