His research has been focused on new materials and device architectures for future generation low-cost photovoltaic. Snaith's achievements include the first demonstration of "gyroid" structured titania for dye solar cells, the first demonstration of mesoporous single crystals of anatase TiO2 and the recent discovery of high efficiency solid-state organometal trihalide perovskite-based thin film and mesosuperstructured solar cells. In 2010, he founded Oxford Photovoltaics Ltd., which is commercialising perovskite solar cells for building integrated and utility scale photovoltaic applications