Simulation and Efficiency Comparison of MOS Solar Cells Using Ag/TiO₂ and Au/TiO₂ as Back Reflector/Protective Sandwich Layers

Current research aims to compare the performance of $\mathrm{Ag} / \mathrm{TiO}_2$ and $\mathrm{Au} / \mathrm{TiO}_2$ as back and front reflector layers in novel photovoltaic (PV) cells using simulations. The study investigated a range of panel thicknesses, from 80 nm to 920 nm. Both back and front reflector layers in the novel metal-oxide-semiconductor (MOS) solar cell (MOSSC) were fabricated with either $\mathrm{Ag} / \mathrm{TiO}_2$ or $\mathrm{Au} / \mathrm{TiO}_2$, respectively. A total of 42 samples were simulated across two groups using the Nanohub simulation tool. The performance of both novel solar cell devices was evaluated using the Nanohub online simulation tool. Simulated results indicated a statistically significant difference ($\mathrm{p}\lt 0.05$) in the efficiency between the two types of MOSSCs. Specifically, the $\mathrm{Ag} / \mathrm{TiO}_2$-based MOSSC exhibited a higher efficiency of 19.75% compared to the 13.30% efficiency of the $\mathrm{Au} / \mathrm{TiO}_2$-based MOSSC. In conclusion, the study suggests that $\mathrm{Ag} / \mathrm{TiO}_2$-based MOSSCs achieve significantly better performance than $\mathrm{Au} / \mathrm{TiO}_2$-based counterparts, with an efficiency of 19.75%.