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In an organic photovoltaic cell, the electrical charges are created by the absorption of light near an interface existing between two materials. For the first time, we have observed the photogeneration charge at the nanoscale using our near-field microscopy technique that directly measures the electrical surface potential.
CEA is a French government-funded technological research organisation in four main areas: low-carbon energies, defense and security, information technologies and health technologies. A prominent player in the European Research Area, it is involved in setting up collaborative projects with many partners around the world.