Strontium Insertion in Methylammonium Lead Iodide
Long Charge Carrier Lifetime and High Fill-Factor Solar Cells
Daniel Pérez-del-Rey (Universidad de Valencia (ICMol))
Dávid Forgács (Universidad de Valencia (ICMol))
Eline M. Hutter (TU Delft - ChemE/Opto-electronic Materials)
T. J. Savenije (TU Delft - ChemE/Opto-electronic Materials)
Dennis Nordlund (Stanford Synchrotron Laboratory)
Philip Schulz (National Renewable Energy Laboratory)
Joseph J. Berry (National Renewable Energy Laboratory)
Michele Sessolo (Universidad de Valencia (ICMol))
Henk J. Bolink (Universidad de Valencia (ICMol))
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Abstract
Abstract
The addition of Sr2+ in CH3NH3PbI3 perovskite films enhances the charge carrier collection efficiency of solar cells leading to very high fill factors, up to 85%. The charge carrier lifetime of Sr2+-containing perovskites is in excess of 40 μs, longer than those reported for perovskite single crystals.
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