Our NanoNews Digest Sponsors Home > Press > Less innocent than it looks: Hydrogen in hybrid perovskites: Researchers identify the defect that limits solar-cell performance 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 CREDIT Xie Zhang Abstract: Researchers in the materials department in UC Santa Barbara's College of Engineering have uncovered a major cause of limitations to efficiency in a new generation of solar cells. Less innocent than it looks: Hydrogen in hybrid perovskites: Researchers identify the defect that limits solar-cell performance