Results 31 to 40 of about 78,965 (291)

Electron diffraction of tilted perovskites [PDF]

open access: yes, 2005
Simulations of electron diffraction patterns for each of the known perovskite tilt systems have been performed. The conditions for the appearance of superlattice reflections arising from rotations of the octahedra are modified to take into account ...
Reaney, I. M., Woodward, David I.
core   +2 more sources

Synthesis of organo tin halide perovskites via simple aqueous acidic solution-based method

open access: yesJournal of Science: Advanced Materials and Devices, 2018
Organometal halide perovskites have been studied extensively during the last ten years for their interesting applications in solar cells and optoelectronics. One drawback of these materials is the presence of lead inside the compound, thus limiting their
Thuat Nguyen-Tran   +4 more
doaj   +1 more source

Emerging perovskite monolayers

open access: yesNature Materials, 2021
The library of two-dimensional (2D) materials has been enriched over recent years with novel crystal architectures endowed with diverse exciting functionalities. Bulk perovskites, including metal-halide and oxide systems, provide access to a myriad of properties through molecular engineering.
Antonio Gaetano Ricciardulli   +3 more
openaire   +2 more sources

Chiral-perovskite optoelectronics [PDF]

open access: yesNature Reviews Materials, 2020
Hybrid organic–inorganic perovskites (HOIPs) offer long carrier-diffusion lengths, high absorption coefficients, tunable band gaps and long spin lifetimes. The flexible crystal structure and ionic nature of HOIPs make it possible to allow tuning of their material properties through rational design, including the incorporation of chiral organic ligands.
Guankui Long   +7 more
openaire   +3 more sources

Oxygen permeation modelling of perovskites [PDF]

open access: yes, 1992
A point defect model was used to describe the oxygen nonstoichiometry of the perovskites La0.75Sr0.25CrO3, La0.9Sr0.1FeO3, La0.9Sr0.1CoO3 and La0.8Sr0.2MnO3 as a function of the oxygen partial pressure.
Bouwmeester, Henny J.M.   +5 more
core   +2 more sources

Progress and outlook of Sn–Pb mixed perovskite solar cells

open access: yesNano Convergence, 2023
Organic–inorganic hybrid perovskites have revolutionized solar cell research owing to their excellent material properties. Most previous research has been done on Pb-based perovskites.
Hyemin Lee   +4 more
doaj   +1 more source

Perovskite Nanowire Extrusion [PDF]

open access: yesNano Letters, 2017
The defect tolerance of halide perovskite materials has led to efficient optoelectronic devices based on thin-film geometries with unprecedented speed. Moreover, it has motivated research on perovskite nanowires because surface recombination continues to be a major obstacle in realizing efficient nanowire devices.
Sebastian Z. Oener   +7 more
openaire   +4 more sources

Optimized Effective Potential Model for the Double Perovskites Sr2-xYxVMoO6 and Sr2-xYxVTcO6

open access: yes, 2011
In attempt to explore half-metallic properties of the double perovskites Sr2-xYxVMoO6 and Sr2-xYxVTcO6, we construct an effective low-energy model, which describes the behavior of the t2g-states of these compounds.
Aryasetiawan F   +8 more
core   +1 more source

Ruddlesden-Popper Phase in Two-Dimensional Inorganic Halide Perovskites: A Plausible Model and the Supporting Observations. [PDF]

open access: yes, 2017
A Ruddlesden-Popper (RP) type structure is well-known in oxide perovskites and is related to many interesting properties such as superconductivity and ferroelectricity.
Yang, Peidong, Yu, Yi, Zhang, Dandan
core   +1 more source

Electrospun Perovskite Nanofibers [PDF]

open access: yesNanoscale Research Letters, 2017
CH3NH3PbI3 perovskite nanofibers were synthesized by versatile electrospinning techniques. The synthetic CH3NH3PbI3 nanofibers were characterized by X-ray diffraction, scanning electron microscopy, thermogravimetric analysis, and photoluminescence. As counter electrodes, the synthesized nanofibers increased the performance of the dye-sensitized solar ...
Chen, Dongsheng, Zhu, Yanyan
openaire   +2 more sources

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