The project has funded the design and fabrication of a custom, computer controlled spray deposition machine compact enough to fit comfortably in a laboratory fume hood, LANDS (the Large Area Nanoparticle Deposition System). The fFellow has used this system to deposit thin films of nanoparticles such as silver nanowires and carbon nanotubes on a variety of substrates including glass, plastic and perovskite solar cells. A major drawback typical of these types of spray deposition systems has been eliminated, in that the fellow has successfully demonstrated the move from volatile solvent based deposition to that out of water. Additionally, the fFellow, in close collaboration with other Oxford University Physics Department researchers, has demonstrated that spray deposition of single walled carbon nanotubes for use as a hole transport material in perovskite solar cells provides a significant boost in power conversion efficiency when compared to other deposition methods such as spin coating. The fellow has passed on his expertise in spray deposition through the careful training of other researchers in the Oxford Physics department so that they will use the LANDS to further their research efforts going forward.