Chemical Mapping of Excitons in Halide Double Perovskites
Nano Letters, 2023 Halide double perovskites comprise an emerging class of semiconductors with tremendous chemical and electronic diversity. While their band structure features can be understood from frontier-orbital models, chemical intuition for optical excitations ...
Linn Leppert (1748980) +7 more
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Impacts of cation ordering on bandgap dispersion of double perovskites
APL Materials, 2018 Double perovskites using dual metal cations are promising candidates for Pb-free perovskites. This study shows that the electronic structures of double perovskites (A2B+B3+X6) can be significantly modulated by cation ordering changes.
Jongseob Kim +5 more
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Understanding complex multiple sublattice magnetism in double double perovskites [PDF]
Scientific Reports, 2021 Understanding magnetism in multiple magnetic sublattice system, driven by the interplay of varied nature of magnetic exchanges, is on one hand challenging and on other hand intriguing.
Anita Halder +3 more
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Double Double to Double Perovskite Transformations in Quaternary Manganese Oxides [PDF]
Angewandte Chemie International Edition, 2021 AbstractControl of cation ordering in ABX3 perovskites is important to structural, physical and chemical properties. Here we show that thermal transformations of AA′BB′O6 double double perovskites, where both A and B sites have 1:1 cation order, to (A0.5A′0.5)2BB′O6 double perovskites with fully disordered A/A′ cations can be achieved under pressure in
Kunlang Ji +5 more
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Double and double double perovskites in the RMnMnTaO6 series [PDF]
Journal of Solid State Chemistry, 2022 A new family of perovskites RMnMnTaO6 has been synthesised at high pressure for representative R = La, Nd, Sm, Eu, Gd, Y and Lu that span the whole rare earth series. The structure type changes from tetragonal P42/n double double perovskite (DDPv) type with columnar R3+/Mn2+ cation order (R = La, Nd, Sm) to monoclinic P21/n double perovskite (DPv) (
Ji, K. +4 more
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Electrical Properties of Un-doped and Doped EuTiO3-based Perovskites [PDF]
, 2013 Un-doped and doped EuTiO3 (ET) ceramics were prepared in 5%H2/95%N2 and N2 atmospheres at various temperatures (1350, 1450 and 1500 oC). For un-doped ET, higher pellet density (above 90%) and larger grain sized ceramics were obtained from the higher ...
WANG, JING
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Layered Double Perovskites [PDF]
Annual Review of Materials Research, 2021 Successful strategies for the design of crystalline materials with useful function are frequently based on the systematic tuning of chemical composition within a given structural family. Perovskites with the formula ABX3, perhaps the best-known example of such a family, have a vast range of elements on A, B, and X sites, which are associated with a ...
Evans, Hayden A +3 more
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CaFeFeNbO 6 – an iron-based double double perovskite [PDF]
Chemical Communications, 2023 CaFeFeNbO 6 , synthesised at 14 GPa pressure, is the first reported Fe-based double double perovskite. Fe/Nb disorder leads to a spin glass ground state below a freezing transition at 12 K.
K. Ji +5 more
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Persistence of the Jahn–Teller distortion of Mo5+ in double perovskites : a structural study of Ba2NdMoO6 and the effect of chemical doping in Ba2Nd1xYxMoO6 [PDF]
, 2010 The cation ordered perovskites Ba2NdMoO6 and Ba2Nd1-xYxMoO6 have been structurally characterised by a combination of neutron and X-ray powder diffraction. Ba2NdMoO6 retains the tetragonal room temperature structure on cooling to 150 K[: I4/m; a = 5.98555(
Cussen, E.J., Cameron, William J.
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Efficient Emission in Halide Layered Double Perovskites: The Role of Sb3+ Substitution in Cs4Cd1–xMnxBi2Cl12 Phosphors [PDF]
, 2020 Layered halide perovskites and double perovskites optoelectronic properties have recently been the subject of intense research. Layered double perovskites represent the merging of both worlds, and as such, have the potential to further expand the already
Brenda, Vargas +4 more
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