Molybdenite diodes that can emit light or absorb it to produce electricity After using it to develop a computer chip, flash memory device and photographic sensor, EPFL scientists have once again tapped into the electronic potential of molybdenite (MoS2) by creating diodes that can emit light or absorb it to produce electricity. At the interface, each electron emitted by the MoS2 combines with a hole – a space left vacant by an electron – in the silicon. The 2 elements lose their respective energies >> transforms into photons. This light production is caused by the specific properties of molybdenite, explains Kis. Other semi-conductors would tend to transform this energy into heat.
Posted on: Sat, 26 Apr 2014 14:10:53 +0000
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