nm4bl2102 – Water ethanol based sprayed photovoltaic solar cells

Poster-NM4BL-DPayno
Water ethanol based sprayed photovoltaic solar cells

Chalcogenides materials have ideal properties as light absorber materials to fulfil the next generation of large production photovoltaics. They are composed of abundant raw materials, with low toxicity, high stability, can be synthesized at low to moderate temperatures, and required low film thickness to work efficiently. Developing a superstrate architecture, based on an FTO/TiO2 electrode, allows new ways of engineering the formation of the thin film. This is in line with the motivation of reducing the use of scarce elements, while at the same time, it brings the possibility for new ways of improvements as absorber layer due to the sturdiness of the electrode. However, the layer deposition and formation usually requires sophisticated equipment, increasing the cost. It is possible to use green and low-cost wet chemistry deposition methods to prepare chalcogenide films for photovoltaic solar cells? We develop a spray solution to prepare Cu2(Cdx,Zn1-x)SnS4 light absorber materials and test it in photovoltaic solar cells fully based on water and ethanol.