Themed collection Perovskites
Perovskites
Welcome to this themed issue of Dalton Transactions focusing on perovskites.
Dalton Trans., 2015,44, 10541-10542
https://doi.org/10.1039/C5DT90083B
Defect chemistry in ferroelectric perovskites: long standing issues and recent advances
Accurate control of residual defect density is required for reliable investigation and use of ferroelectric materials.
Dalton Trans., 2015,44, 13411-13418
https://doi.org/10.1039/C5DT01897H
Phase control of a perovskite transition-metal oxide through oxygen displacement at the heterointerface
We overview investigations highlighting the significance of interface engineering of oxygen displacement as a tool for phase control of strained oxides.
Dalton Trans., 2015,44, 10594-10607
https://doi.org/10.1039/C4DT03749A
Morphology control of the perovskite films for efficient solar cells
In the past two years, the power conversion efficiency (PCE) of organic–inorganic hybrid perovskite solar cells has significantly increased up to 20.1%.
Dalton Trans., 2015,44, 10582-10593
https://doi.org/10.1039/C4DT03869J
Processing of dielectric oxynitride perovskites for powders, ceramics, compacts and thin films
This perspective reviews recent studies on the fabrication of dielectric oxynitride perovskites for powders, ceramics, compacts and thin films.
Dalton Trans., 2015,44, 10570-10581
https://doi.org/10.1039/C4DT03811H
Understanding ferroelectricity in layered perovskites: new ideas and insights from theory and experiments
Recent theoretical and experimental studies showing how polar structures or ferroelectricity arise in layered perovskites are highlighted.
Dalton Trans., 2015,44, 10543-10558
https://doi.org/10.1039/C5DT00010F
Oxyanions in perovskites: from superconductors to solid oxide fuel cells
Perovskite materials exhibit the ability to accommodate large levels of oxyanions (from carbonate to phosphate). This review highlights work in this area from superconductivity to solid oxide fuel cells.
Dalton Trans., 2015,44, 10559-10569
https://doi.org/10.1039/C4DT03036B
PZT-like structural phase transitions in the BiFeO3–KNbO3 solid solution
The solid solution between bismuth ferrite and potassium niobate indicates a similar series of phase transitions to PZT.
Dalton Trans., 2015,44, 10608-10613
https://doi.org/10.1039/C5DT00140D
Spin-state transition in unstrained & strained ultra-thin BiCoO3 films
BiCoO3 in bulk and in film geometry. Marked are the Co spin states.
Dalton Trans., 2015,44, 10882-10887
https://doi.org/10.1039/C5DT00025D
High temperature X-ray diffraction and thermo-gravimetrical analysis of the cubic perovskite Ba0.5Sr0.5Co0.8Fe0.2O3−δ under different atmospheres
Unit cell and non-stoichiometry of Ba0.5Sr0.5Co0.8Fe0.2O3−δ in O2, demonstrating oxidation followed by thermal reduction and formation of a hexagonal phase is reported.
Dalton Trans., 2015,44, 10875-10881
https://doi.org/10.1039/C4DT03963G
Ordering effects in the crystal structure and electrochemical properties of the Gd0.5Ba0.5Mn0.5Fe0.5O3−δ perovskite
Layered-type ordering of Ba and Gd atoms in BaGdMnFeO6−δ perovskite studied by HAADF-STEM and EELS mapping.
Dalton Trans., 2015,44, 10867-10874
https://doi.org/10.1039/C4DT03873H
Synthesis and characterization of the new two-dimensional Heisenberg antiferromagnet double perovskite BaLaCuSbO6
Powder X-ray diffraction patterns, magnetic susceptibility as a function of temperature, and polyhedral representation along the c-axis of the BaLaCuSbO6 double perovskite have been reported.
Dalton Trans., 2015,44, 10860-10866
https://doi.org/10.1039/C4DT03880K
Valence properties of Cu and Ru in titanium-substituted LnCu3Ru4O12+δ (Ln = La, Pr, Nd) investigated by XANES and TGA
In LayCu3RuxTi4−xO12+δ ruthenium remains as Ru4+, while the Cu valence decreases from +2 to +1.6 with increasing x.
Dalton Trans., 2015,44, 10852-10859
https://doi.org/10.1039/C4DT03876B
Thermal evolution of the crystal structure of proton conducting BaCe0.8Y0.2O3−δ from high-resolution neutron diffraction in dry and humid atmosphere
The crystal structure of the proton conducting perovskite, BaCe0.8Y0.2O3−δ, is found to show a remarkable dependence on temperature and humidity, with hydration favouring enhanced octahedral tilting.
Dalton Trans., 2015,44, 10834-10846
https://doi.org/10.1039/C4DT03948C
Non-aggregated Zn(II)octa(2,6-diphenylphenoxy) phthalocyanine as a hole transporting material for efficient perovskite solar cells
A non-aggregated Zn(II)octa(2,6-diphenylphenoxy) phthalocyanine (coded as TT80) has been used as a hole-transporting material for perovskite solar cells.
Dalton Trans., 2015,44, 10847-10851
https://doi.org/10.1039/C5DT00396B
Crystal structure of A-site deficient La0.2Sr0.7−xCaxTiO3 perovskite at ambient conditions and high temperatures: a neutron powder diffraction study
Phase diagram of the ternary system CaTiO3–La2/3TiO3–SrTiO3. All numbers represent calcium content. Solid symbols represent the samples in the series La0.2Sr0.7−xCaxTiO3 studied in this work and analysed using NPD.
Dalton Trans., 2015,44, 10828-10833
https://doi.org/10.1039/C5DT00238A
High temperature neutron diffraction studies of PrInO3 and the measures of perovskite structure distortion
The A3+M3+O3 perovskites with ions in the fixed oxidation state exhibit slower reduction of structural distortion and the tolerance factor with temperature than the A2+M4+O3.
Dalton Trans., 2015,44, 10817-10827
https://doi.org/10.1039/C4DT03881A
Synthesis, structure, and magnetic properties of novel B-site ordered double perovskites, SrLaMReO6 (M = Mg, Mn, Co and Ni)
Four new double perovskites, SrLaMReO6 (M = Mg, Mn, Co, Ni), are characterized by X-ray and neutron diffraction, XANES, magnetic susceptibility, and μSR.
Dalton Trans., 2015,44, 10806-10816
https://doi.org/10.1039/C4DT03821E
Core-level photoemission spectra of Mo0.3Cu0.7Sr2ErCu2Oy, a superconducting perovskite derivative. Unconventional structure–property relationships
The correlation between the critical temperature, Tc, and the apical oxygen distance, the buckling angle and the charge transfer energy (Δ) with the oxidation, in the family of materials: Mo0.3Cu0.7Sr2ErCu2Oy.
Dalton Trans., 2015,44, 10795-10805
https://doi.org/10.1039/C5DT00459D
High-pressure synthesis, crystal structure and magnetic properties of TlCrO3 perovskite
TlCrO3 perovskite has many peculiarities in comparison with RCrO3 (R = rare earths), originating from the strong covalency of Tl3+–O bonds.
Dalton Trans., 2015,44, 10785-10794
https://doi.org/10.1039/C4DT03823A
Thermoelastic and structural properties of ionically conducting cerate perovskites: (II) SrCeO3 between 1273 K and 1723 K
Thermodynamic grüneisen parameter and bond valence parameters for strontium cerate perovskite.
Dalton Trans., 2015,44, 10773-10784
https://doi.org/10.1039/C5DT00041F
Lead-free antiferroelectric: xCaZrO3-(1 − x)NaNbO3 system (0 ≤ x ≤ 0.10)
Crystal chemistry modification stabilized antiferroelectricity in NaNbO3-based polycrystalline ceramics.
Dalton Trans., 2015,44, 10763-10772
https://doi.org/10.1039/C4DT03919J
Raman studies of A2MWO6 tungstate double perovskites
The Raman spectra of A2MWO6 double perovskites with various symmetries have been studied.
Dalton Trans., 2015,44, 10700-10707
https://doi.org/10.1039/C4DT03789H
Effect of local A-site strain on dipole stability in A6GaNb9O30 (A = Ba, Sr, Ca) tetragonal tungsten bronze relaxor dielectrics
A series of isovalently A-site substituted relaxor dielectric tetragonal tungsten bronzes of general formula Ba6−x−ySrxCayGaNb9O30 were investigated.
Dalton Trans., 2015,44, 10738-10745
https://doi.org/10.1039/C4DT03936J
An investigation of Zr doping in NaBiTi2O6 perovskite by direct hydrothermal synthesis
Hydrothermal synthesis produces polycrystalline NaBi(Ti1−xZrx)O6 with small composition range; densified x = 0.01 material shows favourable piezoelectric coefficient and permittivity.
Dalton Trans., 2015,44, 10714-10720
https://doi.org/10.1039/C4DT03875D
Redox characteristics variations in the cation-ordered perovskite oxides BaLnMn2O5+δ (Ln = Y, Gd, Nd, and La) and Ca2Al1−xGaxMnO5+δ (0 ≤ x ≤ 1)
The redox characteristics of the two manganese-based oxygen storage materials were studied to clarify the effects of isovalent substitution neighboring the “active” sites for oxygen intake/release.
Dalton Trans., 2015,44, 10746-10752
https://doi.org/10.1039/C4DT03863K
A new LaCo0.71(1)V0.29(1)O2.97(3) perovskite containing vanadium in octahedral sites: synthesis and structural and magnetic characterization
Powder neutron diffraction, Co-Kβ XES spectra and a polyhedral view of the orthorhombic LaCo0.71(1)V0.29(1)O2.97(3) perovskite.
Dalton Trans., 2015,44, 10721-10727
https://doi.org/10.1039/C4DT03858D
An unusual high-spin ground state of Co3+ in octahedral coordination in brownmillerite-type cobalt oxide
High-spin ground state of Co3+ was found in brownmillerite-like Sr2Co1.2Ga0.8O5 by low-temperature NPD and XAS study.
Dalton Trans., 2015,44, 10708-10713
https://doi.org/10.1039/C4DT03670K
Synthesis and characterization of the rare-earth Dion–Jacobson layered perovskites, APrNb2O7 (A = Rb, Cs and CuCl)
The Dion–Jacobson type layered perovskites, APrNb2O7 (A = Rb, Cs), can be readily exchanged with (CuCl)+ at low temperatures to produce, (CuCl)PrNb2O7, a compound that shows interesting 2D antiferromagnetic behavior.
Dalton Trans., 2015,44, 10654-10660
https://doi.org/10.1039/C4DT03882G
{110}-Layered B-cation ordering in the anion-deficient perovskite Pb2.4Ba2.6Fe2Sc2TiO13 with the crystallographic shear structure
A novel anion-deficient perovskite-based compound with {110}-Layered B-cation ordering, Pb2.4Ba2.6Fe2Sc2TiO13, was synthesized via the citrate-based route.
Dalton Trans., 2015,44, 10753-10762
https://doi.org/10.1039/C4DT03867C
Crystal and magnetic structures of the brownmillerite Ca2Cr2O5
Magnetic moments show a surprising degree of spin canting in the antiferromagnetic structure of the brownmillerite Ca2Cr2O5, obtained from the high pressure perovskite CaCrO3 through hard-soft chemistry.
Dalton Trans., 2015,44, 10661-10664
https://doi.org/10.1039/C4DT03780D
Structural and dielectric studies of the phase behaviour of the topological ferroelectric La1−xNdxTaO4
Phase behaviour in the layered perovskite LaTaO4 has been analysed, including an unusual tilt-induced axial thermal contraction effect.
Dalton Trans., 2015,44, 10673-10680
https://doi.org/10.1039/C4DT03721A
Synthesis, structures and magnetic properties of the dimorphic Mn2CrSbO6 oxide
Mn2CrSbO6-perovskite was synthesized at high pressure in order to stabilize the small Mn2+ cations on the A-perovskite site. Mn2CrSbO6-ilmenite polymorph can be prepared, starting from the perovskite, by a “hard-soft” phase transformation increasing the temperature at room pressure.
Dalton Trans., 2015,44, 10665-10672
https://doi.org/10.1039/C4DT03849E
Structural and magnetic properties of the ruthenium double perovskites Ba2−xSrxYRuO6
Doping Ba2YRuO6 with Sr induces octahedral tilting and significantly impacts on the magnetic properties.
Dalton Trans., 2015,44, 10689-10699
https://doi.org/10.1039/C4DT03682D
BaCoO2.22: the most oxygen-deficient certified cubic perovskite
The crystal structure and topochemical modification of BaCoO2.22 show that its cubic structure is tightly hold by the strong oxygen deficiency.
Dalton Trans., 2015,44, 10728-10737
https://doi.org/10.1039/C4DT03874F
Long- and short-range structure studies of KBT-KBZ solid-solutions using synchrotron radiation
Synchrotron X-ray powder diffraction patterns of K0.5Bi0.5Ti1−xZrxO3 (KBT-KBZ), showing the pseudocubic tetragonal region at all intermediate compositions in the solid-solution.
Dalton Trans., 2015,44, 10681-10688
https://doi.org/10.1039/C4DT03866E
Tuning the ferroelectric polarization in AA′MnWO6 double perovskites through A cation substitution
A large enhancement of ferroelectric polarizations in AA′MnWO6 double perovskites through cation substitution is predicted and investigated using first-principles calculations.
Dalton Trans., 2015,44, 10644-10653
https://doi.org/10.1039/C4DT03521F
Reductive lithium insertion into B-cation deficient niobium perovskite oxides
Reductive lithium intercalation into AnBn−1O3n cation deficient perovskite phases leads to the formation of Ba5LiNb4O15, Ba6LiTiNb4O18 and Ba3LaLiNb3O12.
Dalton Trans., 2015,44, 10636-10643
https://doi.org/10.1039/C4DT03193H
Antisite-disorder, magnetic and thermoelectric properties of Mo-rich Sr2Fe1−yMo1+yO6 (0 ≤ y ≤ 0.2) double perovskites
A-site deficiency does not survive in Sr2−xFeMoO6 and instead Mo-rich Sr2Fe1−yMo1+yO6 perovskites, characterised by the gradual disordering of Fe and Mo, form.
Dalton Trans., 2015,44, 10621-10627
https://doi.org/10.1039/C4DT03307H
The role of reaction conditions in the polymorphic control of Eu3+ doped YInO3: structure and size sensitive luminescence
Controlled synthetic conditions yielded YInO3:Eu3+ in both C-type and hexagonal modifications which exhibited a tremendous bearing of size and local structure on Eu3+ luminescence, all in a single compound.
Dalton Trans., 2015,44, 10628-10635
https://doi.org/10.1039/C4DT02717E
Phase transitions and dielectric properties of a hexagonal ABX3 perovskite-type organic–inorganic hybrid compound: [C3H4NS][CdBr3]
The perovskite-type hybrid thiazolium tribromocadmate(II) exhibits two phase transitions at 180 and 146 K, accompanied by remarkable dielectric responses.
Dalton Trans., 2015,44, 10614-10620
https://doi.org/10.1039/C4DT02875A
About this collection
This themed issue, guest edited by Professors Russell Morris, Paul Attfield and Philip Lightfoot, focuses on functional perovskites, from the inorganic chemist's perspective.
If you are interested in this topic, you might also enjoy the themed issue on Perovskite Solar Cells from Journal of Materials Chemistry A.