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5/2/15 Cover


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Excitons' motions captured in images

When plants make food, they absorb energy from light. Excitons move that energy to places in plants where it can be stored in its chemical form. Observing excitons in motion may help scientists better understand the process of photosynthesis.

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Quasiparticles called excitons transfer energy through materials such as solar cells, LEDs, semiconductor circuits and even plant cells. Now, that motion has been observed and captured in images, researchers report April 16 in Nature Communications. The observations could lead to advances in electronics and improve scientists’ understanding of photosynthesis.

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