Absorption enhancement in thin film a-Si solar cells with double-sided SiO2 particle layers |
(a)–(c) Comparison of absorption spectrum between the models with SiO2 layer and the flat model. (d) Comparison of ultimate efficiency between these models and the flat model, showing that compared with the flat model, the “top only”, the “bottom only”, and the “top and bottom” models increase the ultimate efficiencies by 16.4%, 12.7%, and 22.2%, respectively. |