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Excited-state vibrational dynamics toward the polaron in methylammonium lead iodide perovskite
(Nature Publishing Group, 2018)
Hybrid organic-inorganic perovskites have attractive optoelectronic properties including exceptional solar cell performance. The improved properties of perovskites have been attributed to polaronic effects involving ...
Properties of faujasite zeolites containing methyl-substituted ammonium cations
(Academic Press Inc Elsevier ScienceSan DiegoEUA, 2012)
Preparação e propriedades de zeólitas faujasita contendo cátions amônio
(Sociedade Brasileira de Química, 2010)
Sodium faujasite zeolites with Si/Al ratio of 1.4 and 2.5 were exchanged with methylammonium cations. The influence of framework aluminum and ion exchange degree in their basic properties were evaluated. These properties ...
Dynamic Disorder Restriction of Methylammonium (MA) Groups in Chloride-Doped MAPbBr 3 Hybrid Perovskites: A Neutron Powder Diffraction Study
(Wiley VCH Verlag, 2019-03)
The hybrid methylammonium (MA) lead halide MAPbX 3 perovskites present an appealing optoelectronic behavior with applications in high-efficiency solar cells. The orientation of the organic MA units may play an important ...
Preparação e propriedades de zeólitas faujasita contendo cátions amônio
(Sociedade Brasileira de Química, 2015)
Preparação e propriedades de zeólitas faujasita contendo cátions amônioPreparation and properties of faujasite zeolites containing ammonium cations
(Sociedade Brasileira de Química, 2015)
An unusual frequency dispersion of the dielectric permittivity maxima at temperatures around the tetragonal-cubic phase transition of methylammonium lead iodide
(Amer Inst Physics, 2020-06-28)
We report studies on the unusual frequency dispersion of the dielectric permittivity maxima of methylammonium lead iodide pellets at temperatures around the tetragonal-cubic phase transition. The origin of this observed ...
Effects of frequency, temperature, and dc bias electric field on the dielectric properties of methylammonium lead iodide from the perspective of a relaxor-like ferroelectric
(2021-10-15)
This work reports dielectric properties of methylammonium lead iodide as a function of frequency, temperature, and dc bias electric field studied in terms of grain and grain boundary contributions. These results were ...