Results 1 to 10 of about 10,434 (165)

Facile Synthesis of Highly Emissive All-Inorganic Manganese Bromide Compounds with Perovskite-Related Structures for White LEDs [PDF]

open access: yesMolecules, 2022
Lead-free all-inorganic halide materials with different Mn2+-based crystal structures (Cs3MnBr5 and CsMnBr3) were obtained using a convenient synthetic method. Cs3MnBr5 had a bright green emission (522 nm), with a unique single-exponential lifetime (τavg
Ping Gao   +7 more
doaj   +2 more sources

Density functional theory study on the electronic structures and related properties of Ag-doped CH3NH3PbI3 perovskite

open access: yesResults in Physics, 2019
In order to improve power conversion efficiency and stability, doping is commonly adopted strategy to tune and modify the structures and properties of CH3NH3PbI3 materials in organic-inorganic hybrid perovskite emerging solar cells.
Zi-Wei Xu   +6 more
doaj   +3 more sources

Perovskite-related ReO3-type structures [PDF]

open access: yesNature Reviews Materials, 2020
Materials with the perovskite ABX3 structure play a major role across materials chemistry and physics as a consequence of their ubiquity and wide range of useful properties. ReO3-type structures can be described as ABX3 perovskites in which the A-cation site is unoccupied, giving rise to the general composition BX3, where B is typically a cation and X ...
Hayden A. Evans   +3 more
openaire   +4 more sources

Hybrid organic-inorganic perovskites: a spin-off of oxidic perovskites

open access: yesMaterials and Devices, 2021
ABX3 compounds with perovskite structure have been intensively and extensively studied in the last decades in view of their structural richness and amazing variety of interesting properties, such as piezoelectricity, ferroelectricity, ferromagnetism ...
Alberto Garcia   +4 more
doaj   +6 more sources

Crystal-Site-Based Artificial Neural Networks for Material Classification

open access: yesCrystals, 2021
In materials science, crystal structures are the cornerstone in the structure–property paradigm. The description of crystal compounds may be ascribed to the number of different atomic chemical environments, which are related to the Wyckoff sites.
Juan I. Gómez-Peralta   +2 more
doaj   +1 more source

A brief review of conductivity and thermal expansion of perovskite-related oxides for SOFC cathode

open access: yesEurasian Journal of Physics and Functional Materials, 2021
Cathode materials with mixed ion-electron conductivity (MIEC) are necessary for the development of low or intermediate temperature solid oxide fuel cells. Perovskite and perovskite-related materials are promising candidates on this role.
A. V. Nikonov   +3 more
doaj   +1 more source

A Microstructural Analysis of 2D Halide Perovskites: Stability and Functionality

open access: yesFrontiers in Nanotechnology, 2021
Recent observations have demonstrated that the photoelectric conversion properties of perovskite materials are intimately related to the presence of superlattice structures and other unusual nanoscale features in them.
Susmita Bhattacharya   +2 more
doaj   +1 more source

Electronic Structures of Eu-Doped FAPbI3 Perovskite Crystals Studied by First-Principles Calculation

open access: yesChemistry Proceedings, 2022
The effects of maxed-valence states on electronic structures of europium (Eu)-incorporated CH(NH2)2PbI3 (FAPbI3) and CH3NH3PbI3 (MAPbI3) perovskite crystals were investigated by first-principles calculation. Partial replacements of europium ions into the
Atsushi Suzuki, Takeo Oku
doaj   +1 more source

Review of blue perovskite light emitting diodes with optimization strategies for perovskite film and device structure

open access: yesOpto-Electronic Advances, 2021
Perovskite light emitting diodes (PeLEDs) have attracted considerable research attention because of their external quantum efficiency (EQE) of >20% and have potential scope for further improvement.
Zongtao Li   +5 more
doaj   +1 more source

First-Principle Calculation Analysis on Electronic Structures and Molecular Dynamics of Gadolinium-Doped FAPbI3

open access: yesEngineering Proceedings, 2023
First-principle calculation analysis on electronic structures and molecular dynamics was performed to investigate the addition of gadolinium ion into a formamidinium lead iodine (FAPbI3) perovskite crystal for use in the application of photovoltaic ...
Atsushi Suzuki, Takeo Oku
doaj   +1 more source

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