N-Methylformamide as a Source of Methylammonium Ions in the Synthesis of Lead Halide Perovskite Nanocrystals and Bulk Crystals | Zendy

Javad Shamsi | Zendy; Ahmed L. Abdelhady | Zendy; Sara Accornero | Zendy; Milena P. Arciniegas | Zendy; Luca Goldoni | Zendy; Ajay Ram Srimath Kandada | Zendy; Annamaria Petrozza | Zendy; Liberato Manna | Zendy

Open Access

N-Methylformamide as a Source of Methylammonium Ions in the Synthesis of Lead Halide Perovskite Nanocrystals and Bulk Crystals

Author(s) -

Javad Shamsi,

Ahmed L. Abdelhady,

Sara Accornero,

Milena P. Arciniegas,

Luca Goldoni,

Ajay Ram Srimath Kandada,

Annamaria Petrozza,

Liberato Manna

Publication year - 2016

Publication title -

acs energy letters

Language(s) - English

Resource type - Journals

ISSN - 2380-8195

DOI - 10.1021/acsenergylett.6b00521

Subject(s) - oleylamine , nanocrystal , halide , perovskite (structure) , photoluminescence , inorganic chemistry , alkyl , chemistry , ion , amine gas treating , colloid , materials science , chemical engineering , nanotechnology , organic chemistry , optoelectronics , engineering

We report chemical routes for the synthesis of both nanocrystals and bulk crystals of methylammonium (MA) lead halide perovskites employing N -methylformamide (NMF) as a source of MA ions. Colloidal nanocrystals were prepared by a transamidation reaction between NMF and an alkyl amine (oleylamine). The nanocrystals showed photoluminescence quantum yields reaching 74% for MAPbBr 3 and 60% for MAPbI 3 . Bulk crystals were grown at room temperature, with no need for an antisolvent, by the acid hydrolysis of NMF. Important advantages of using NMF instead of MA salts are that the syntheses involve fewer steps and less toxic and less expensive chemicals.

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