Started at Imperial College London developing models of quantum well solar cells (PHD and postdocs), then a Marie Curie fellowship on CIGS at IRDEP (ENSCP) in Paris, then multijunction cells and fundamental limits at ICL (and contrating for QUANTASOL) before moving to the NTC in Valencia to research next generation silicon solar cells (plasmonics, and quantum dot downshifting) including coordinating a European COST Action (multiscalesolar.eu). Since 2016 has moved to Paris to work for the CNRS, IPVF institute, and CentraleSupélec school in Saclay, on modelling advanced characterisation tools (KPFM) and coordinating a European projects BobTandem (bobtandem.wordpress.com).