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181102-N-N0204-006.JPG Photo By: Daniel Parry

WASHINGTON, D.C. - An emerging class of semiconductor heterostructures involves stacking discrete monolayers such as transition metal dichalcogenides (TMDs), e.g. molybdenum diselenide (MoSe2) and tungsten diselenide (WSe2), to form van der Waals heterostructures. Both emission features originate from excitonic transitions that are indirect in momentum space and are split by spin−orbit coupling. (U.S. Naval Research Laboratory)


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This photograph is considered public domain and has been cleared for release. If you would like to republish please give the photographer appropriate credit.



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