학술논문
Mechanochemical synthesis of methylammonium lead iodide perovskite.
Document Type
Article
Source
Subject
*LEAD iodide
*MECHANICAL chemistry
*METHYLAMMONIUM
*LEAD compounds synthesis
*PEROVSKITE synthesis
*SOLID state chemistry
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Language
ISSN
0022-2461
Abstract
A mechanically induced solid-state reaction method for the synthesis of organic-inorganic hybrid perovskites, such as methylammonium lead iodide (CHNHPbI) is reported. The perovskites were synthesized both in bulk and AlO-supported forms. The phase- and structural-formation mechanisms of such perovskites are also investigated. The experiments suggest that diffusion of PbI into CHNHI crystals is a rate-limiting step of the reaction process. It is also shown that water (humidity) significantly influences the reaction kinetics. UV-Vis-NIR absorption and photoluminescence spectroscopies indicate that the band edge and emission characteristics of the as-fabricated materials strongly depend on their particle size. [ABSTRACT FROM AUTHOR]