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Properties of methylammonium lead iodide perovskite single crystals |
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| Authors: | E?S?Yudanova T?A?Duda O?E?Tereshchenko |
| Institution: | 1.Rzhanov Institute of Semiconductor Physics, Siberian Branch,Russian Academy of Sciences,Novosibirsk,Russia;2.Novosibirsk National Research State University,Novosibirsk,Russia |
| Abstract: | The technique for growing CH3NH3PbI3 single crystals from saturated solutions in concentrated hydroiodic acid is improved by introducing a reducing agent (hypophosphorous acid). The structure of perovskite is confirmed by single crystal XRD. By energy dispersive spectroscopy and X-ray photoelectron spectroscopy it is established that the stoichiometry of the grown crystals corresponds to the CH3NH3PbI3 compound. Changes in the photoluminescence intensity during in-air measurements show that the crystals synthesized using the reducing agent are more stable in the external environment with laser exposure than without it. |
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