Hybrid perovskites
Exploring the cation dynamics in lead bromide hybrid perovskites
... whose energy gap becomes indirect when the molecules are oriented along the (001) direction. One then expects that the luminescence of hybrid perovskites may depend on the molecule orientation with respect ...
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Syntheses and crystal structures of a new family of hybrid perovskites : C5H14N2·ABr3·0 5H2O (A = K, Rb, Cs)
... of hybrid perovskites featuring several different cations – the protonated forms of piperazine, dabco, 1-methylpiperazine, 3-aminopyrrolidine and ‘methyl dabco’ ...
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Syntheses and crystal structures of a new family of hybrid perovskites: C5H14N2·ABr3·0 5H2O (A = K, Rb, Cs)
... of hybrid perovskites featuring several different cations – the protonated forms of piperazine, dabco, 1-methylpiperazine, 3-aminopyrrolidine and ‘methyl dabco’ ...
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Lermer, Claudia (2018): Synthesis, structure and optoelectronic properties of new hybrid perovskites. Dissertation, LMU München: Fakultät für Chemie und Pharmazie
... quasi-2D hybrid perovskites which combine MAPI’s superior optoelectronic properties with the higher stability of 2D hybrid ...Layered hybrid perovskites’ moisture resistance is ...
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Microwave-Assisted Topochemical Manipulation of Layered Oxide Perovskites: From Inorganic Layered Oxides to Inorganic-Organic Hybrid Perovskites and Functionalized Metal-Oxide Nanosheets
... Unsaturated surface groups can also be readily attached to the oxide nanosheets. Figure 4-19 shows the XRD patterns of the three unsaturated hybrid nanosheets (Figure 4-13n−p) before and after air exposure. A ...
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Nanoimprinted distributed feedback lasers of solution processed hybrid perovskites
... CH3NH3PbI3 distributed feedback lasing Perovskite DFB lasers were optically pumped using both nanosecond and femtosecond laser sources.. Nanosecond 355 nm excitation pulses were generate[r] ...
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Quasiparticle GW Calculations on Lead Free Hybrid Germanium Iodide Perovskite CH <inf>3</inf> NH <inf>3</inf> GeI <inf>3</inf> for Photovoltaic Applications
... lead hybrid perovskites, it has been found that for a precise description of the electronic structure, it is required to calculate many-body quasiparticle energies, for example, in the framework of the GW ...
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Impedance Analysis of Thin Films of Organic Inorganic Perovskites CH3NH3PbI3 with Control of Microstructure
... of hybrid perovskites in solar cells is complicated be- cause of the hysteresis effect ...of perovskites (which differ significantly in the microstructure) determined by the complex imped- ance ...
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Sichert, Jasmina (2019): Quantum size effects and carrier dynamics in two-dimensional lead halide perovskite nanostructures. Dissertation, LMU München: Fakultät für Physik
... Layered hybrid perovskites are a subcategory of ...3D perovskites, the substitution of the halide ions offers a possibility to alter the material ...3D perovskites, however, the choice of the ...
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Perovskite Solar Cells
... and hybrid (organic–inorganic) materials; and these reach a photovoltaic efficiency up to ...materials, perovskites (organic–inorganic) have reached top position ...of perovskites are synthetic ...
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The influence of oxygen vacancies on domain patterns in ferroelectric perovskites
... It is also possible to prepare n-type ferroelectric perovskites in bulk by growing specimen in an oxygen-poor atmosphere. This is typically the case in thin films where oxygen loss at high temperature is quenched ...
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Defect chemistry and proton conductivity in Ba-based perovskites
... This introduction will provide a brief overview of Ba-based perovskite structure, the defect chemistry mechanism, proton incorporation and transfer mechanism and chemical stability.. 1.1[r] ...
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Effect of Fe doping on properties of Pr0.67Ba0.33Mn1-xFexO3 perovskites
... Changes in the physical properties of ceramic Pr 0.67 Ba 0.33 Mn 1-x Fe x O 3 (0 ≤ x ≤ 0.15) are interpreted as resulting from the suppression of the ferromagnetic double e[r] ...
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Inorganic and Hybrid Perovskite Based Laser Devices : A Review
... Abstract: Inorganic and organic – inorganic (hybrid) perovskite semiconductor materials have attracted the worldwide scientific attention and research effort as the new wonder material in optoelectronics. Their ...
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Ferroelectricity in Layered Perovskites as a Model of Ultra Thin Films
... layered perovskites suggest that the bulk layered ferroelectric is a good model of ultra-thin ferroelectric film with a few perovskite units, free from any misfit lattice ...
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STUDY ELECTRONIC PROPERTIES OF THE IDEAL PEROVSKITE STRUCTURE
... In several materials the cubic cell may have a small deformation to rhombohedral symmetry. If this deformation does not enlarge the unit cell, it is possible to index it on a unit cell containing either one or two ...
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PURE STRUCTURAL ANALYSIS OF La MODIFIED PbTiO3 PEROVSKITES
... occupying the body canter, and the oxygen atoms sitting at the face centers[7,8]. The isomorphic substitution of lead with lanthanum gives rise to a decrease in the tetragonality [9]. The PT undergoes a phase transition ...
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Charge carrier mobility in hybrid halide perovskites
... of hybrid Pb-halide perovskites, by using a combination of rigorous density functional theory and semiclassical Boltzmann transport in the constant relaxation time ...
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Structures and properties of perovskites and pyrochlores from hydrothermal synthesis
... Hydrothermal synthesis consists of a one-step reaction, or “one-pot synthesis”, of appropriate reagents in solution under much milder conditions and can directly produce a variety of complex crystalline products. 90 The ...
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Local A‐Site Layering in Rare‐Earth Orthochromite Perovskites by Solution Synthesis
... two different sized lanthanides into layers likely reduces this strain within the local structure. The observation of such layer- ing suggests that the structural distortion, typically mediated through octahedral tilting ...
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