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Facile Synthesis of Methylammonium Lead Iodide Perovskite With Controllable Morphologies With Enhanced Luminescence Performance

Facile Synthesis of Methylammonium Lead Iodide Perovskite With Controllable Morphologies With Enhanced Luminescence Performance

Tao Wang, Huafang Zhang, Sumin Hou, Yan Zhang, Quanjun Li, Zhenlong Zhang, Huiping Gao, And Yanli Mao

Nanomaterials (Basel). 2019 Nov 21;9(12):1660.

PMID: 31766575

Abstract:

Organic-inorganic hybrid perovskites with well-defined morphology have attracted much attention due to their unique photophysical properties. However, controlling the morphology of nanocrystalline perovskite to improve its photoelectric application remains a challenge. In this article, using a modified solution deposition method, we successfully synthesized uniform methylammonium lead iodide (MAPbI3) nanoplates, nanocubes, and nanorods and investigated the effect of morphology on the photoelectric properties of these materials. We found that the morphology can be controlled by regulating the amounts of reactant methylammonium iodide (MAI) and the rate at which MAPbI3 precursor is added into toluene solution, and that the corresponding size distributions can be optimized by tuning the final vacuum-drying temperature. The morphology has an obvious effect on the bandgap optimization and fluorescence enhancement of MAPbI3, and the nanoplates exhibit stronger photoluminescence intensity and have a longer carrier lifetime than nanocubes and nanorods. The results show that the morphologies of MAPbI3 perovskite nanocrystals can be controlled by tuning the synthesizing conditions, and the MAPbI3 perovskite nanocrystals with special morphology can be used in special nanosize optoelectronic devices.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP14965492-A	Methylammonium iodide		14965-49-2	Price

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