Wednesday, 15 November 2017

Ionic 'solar cell' could provide on-demand water desalination

Modern solar cells, which use energy from light to generate electrons and holes that are then transported out of semiconducting materials, have existed for over 60 years. Little attention has been paid, however, to the promise of using light to drive the transport of oppositely charged protons and hydroxides obtained by dissociating water molecules. Researchers report such a design, which has promising application in producing electricity to turn brackish water drinkable.
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