Open AccessHybrid MAPbI3 Perovskite Growth Mechanism from Irregular Particles to Cuboid and Hopper-Type Morphologies
Author(s) -
Ariany Bonadio,
J. A. Souza
Publication year - 2022
Publication title -
journal of the brazilian chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.337
H-Index - 70
eISSN - 1678-4790
pISSN - 0103-5053
DOI - 10.21577/0103-5053.20220057
Subject(s) - cuboid , morphology (biology) , materials science , perovskite (structure) , non equilibrium thermodynamics , chemical engineering , mechanism (biology) , pyramid (geometry) , nanotechnology , chemical physics , chemistry , crystallography , thermodynamics , optics , geometry , physics , geology , engineering , quantum mechanics , paleontology , mathematics
Methylammonium lead iodide (MAPbI3), used as light-harvesting layer in solar cell devices, has attracted great attention from scientific community due to its excellent photovoltaic performance. In this work, we have shown a comprehensive study on the hybrid organic-inorganic MAPbI3 perovskite growth mechanism from irregular small particles to cuboid shape followed by hoppertype morphology through a systematically change on both the temperature and lead source concentration during the solution synthesis process. Indeed, we have observed very interesting hopper growth resulting in a pyramid-hollow like morphology. We have explained the morphology evolution by taking into account thermodynamics growth, which compete with kinetics growth under nonequilibrium conditions.