Obaid’s work on structure-property relationships in polymer:fullerene organic solar cells (OSCs) has been published at ACS Applied Materials and Interfaces. This work explains the morphological origins of suppressed charge recombination in photovoltaic active layers. The findings show that large well-ordered conduits with sharp interfaces between donor-acceptor domains are important for keeping opposite charges separated and percolation pathways clear. That result in enhanced charge collection even in active layers with film thickness that is suitable for industrial production methods, such as roll-to-roll printing. The work involved a large collaboration with groups across the globe including University of Potsdam (Germany), Swansea University (U.K.), South China University of Technology (China) as well as local collaborations.
Department of Physics and Astronomy
Collins Research Group