Physicists have succeeded in coupling different types of electron-hole pairs (excitons) in the van der Waals material molybdenum disulfide. This successful coupling allows them to utilize and control the different properties of the two types of electron-hole pairs -- and could pave the way for the production of a novel source of individual particles of light (photons).
from Latest Science News -- ScienceDaily https://ift.tt/HKpSy8A
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