Photovoltaic technology is one of the most promising technology of the present and the near future. Nowadays several different solar cells are available in the market in order to try to meet the demand of different sectors which requires devices with different performance, thickness and flexibility to entirely cover the demand. However, the biggest part of the market share belongs to the crystalline silicon solar cells with over the 90% of the demand covered [1]. Furthermore, the demand of solar energy is estimated to grow another 60% in 2030, reaching 31600 TWh [1]. With these premises, it is evident that silicon solar panels are massively impacting the environment in a way that is not always positive: although it is true that renewable energy sources such as the solar one currently seems the best solution to keep our energy needs away from fossil fuels, there are still negative evidences concerning researchers all over the world, especially because of the massive pollution generated during the production of the silicon and the assembly of the photovoltaic module.