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Image News release-hydrogen vacancy-Nature Materials Van de Walle 042321.png

Illustration of hydrogen vacancy in a perovskite

A hydrogen vacancy (the black spot left of center) created by removing hydrogen from a methylammonium molecule, traps carriers in the prototypical hybrid perovskite, mehtylammonium lead iodide CH3NH3Pbl3

Photo Credit: 

Illustration by Xie Zhang