In ultra thin materials, exotic bound states of particles can be created which are then converted into light. Scientists at TU Wien (Vienna) have now succeeded in using this effect to create a novel kind of light-emitting diode.
from Top Technology News -- ScienceDaily https://www.sciencedaily.com/releases/2019/04/190415105033.htm
from Top Technology News -- ScienceDaily https://www.sciencedaily.com/releases/2019/04/190415105033.htm
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