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Nanotechnology researchers studying small bundles of carbon nanotubes have discovered an optical signature showing excitons bound to a single nanotube are accompanied by excitons tunneling across closely interacting nanotubes. That quantum tunneling action could impact energy distribution in carbon nanotube networks, with implications for light-emitting films and light harvesting applications.

"Observing this behavior in carbon nanotubes suggests there is potential to detect and control a similar response in more complex, multi-layered semiconductor and semiconductor-metal heterostructures," said Stephen Doorn, of the Center for Integrated Nanotechnologies at Los Alamos and a coauthor of the study, recently published in Nature Communications.

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Category: Science