James Durrant is Professor of Photochemistry in the Department of Chemistry, Imperial College London and Ser Cymru Solar Professor, University of Swansea. His research addresses the photochemistry of new materials for solar energy conversion targeting both solar cells (photovoltaics) and solar to fuel (i.e.: artificial photosynthesis. It is based around employing transient optical and optoelectronic techniques to address materials function, and thereby elucidate design principles which enable technological development. His group is currently addressing the development and functional characterisation of organic solar cells and photoelectrodes for solar fuel generation. More widely, he leads the UK�s Solar Fuels Network and the Welsh government funded S�r Cymru Solar initiative. He has published over 300 research papers and 5 patents, and was recently awarded the 2012 Tilden Prize by the RSC.

Henry Snaith undertook his PhD at the University of Cambridge, working on polymer blend photovolatics under the supervision of Prof. Sir. Richard Friend. He then spent two years at the EPFL, in Switzerland, as a post doc working on solid-state dye-sensitized solar cells under the guidance of Prof. Michael Gr�tzel. He returned to the Cavendish Laboratory in Cambridge to take up a Junior Research Fellowship for Clare College in October 2006, and moved to the Clarendon Laboratory of Oxford Physics in October 2007, where he now Lectures and leads a group researching in optoelectronic devices, specifically organic and hybrid solar cells. His current research is heavily focussed on developing new material structures for dye-sensitized and hybrid solar cells and understanding and controlling the physical processes occurring at interfaces. He has made a number of significant advances for emerging solar cells, including the first demonstration of �gyroid� structured titania for dye solar cells, and the recent discovery of efficient thin film perovskite solar cells