The Ames Laboratory

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Light-to-energy transfer directly observed in solar cell materials

Light-to-energy transfer directly observed in solar cell materials
Scientists at the U.S. Department of Energy's Ames Laboratory are now able to capture the moment less than one trillionth of a second a particle of light hits a solar cell and becomes energy, and describe the physics of the charge carrier and atom movement for the first time. The generation and dissociation of bound electron and hole pairs, namely excitons, are key processes in solar cell and photovoltaic technologies, yet it is challenging to follow their initial dynamics and electronic coherence.
2nd June 2017


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