Relevant bibliographies by topics / Double perovskites

Academic literature on the topic 'Double perovskites'

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Published: 4 June 2021
Last updated: 7 September 2023

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Journal articles on the topic "Double perovskites"

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Mitchell, Roger H., Mark D. Welch, and Anton R. Chakhmouradian. "Nomenclature of the perovskite supergroup: A hierarchical system of classification based on crystal structure and composition." Mineralogical Magazine 81, no. 3 (June 2017): 411–61. http://dx.doi.org/10.1180/minmag.2016.080.156.

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AbstractOn the basis of extensive studies of synthetic perovskite-structured compounds it is possible to derive a hierarchy of hettotype structures which are derivatives of the arisotypic cubic perovskite structure (ABX3), exemplified by SrTiO3 (tausonite) or KMgF3 (parascandolaite) by: (1) tilting and distortion of the BX6 octahedra; (2) ordering of A- and B-site cations; (3) formation of A-, B- or X-site vacancies. This hierarchical scheme can be applied to some naturally-occurring oxides, fluorides,hydroxides, chlorides, arsenides, intermetallic compounds and silicates which adopt such derivative crystal structures. Application of this hierarchical scheme to naturally-occurring minerals results in the recognition of a perovskite supergroup which is divided into stoichiometric and non-stoichiometricperovskite groups, with both groups further divided into single ABX3 or double A2BB'X6 perovskites. Subgroups, and potential subgroups, of stoichiometric perovskites include: (1) silicate single perovskites of the bridgmanite subgroup;(2) oxide single perovskites of the perovskite subgroup (tausonite, perovskite, loparite, lueshite, isolueshite, lakargiite, megawite); (3) oxide single perovskites of the macedonite subgroup which exhibit second order Jahn-Teller distortions (macedonite, barioperovskite); (4) fluoride singleperovskites of the neighborite subgroup (neighborite, parascandolaite); (5) chloride single perovskites of the chlorocalcite subgroup; (6) B-site cation ordered double fluoride perovskites of the cryolite subgroup (cryolite, elpasolite, simmonsite); (7) B-site cation orderedoxide double perovskites of the vapnikite subgroup [vapnikite, (?) latrappite]. Non-stoichiometric perovskites include: (1) A-site vacant double hydroxides, or hydroxide perovskites, belonging to the söhngeite, schoenfliesite and stottite subgroups; (2) Anion-deficient perovskitesof the brownmillerite subgroup (srebrodolskite, shulamitite); (3) A-site vacant quadruple perovskites (skutterudite subgroup); (4) B-site vacant single perovskites of the oskarssonite subgroup [oskarssonite]; (5) B-site vacant inverse single perovskites of the coheniteand auricupride subgroups; (6) B-site vacant double perovskites of the diaboleite subgroup; (7) anion-deficient partly-inverse B-site quadruple perovskites of the hematophanite subgroup.
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Heidari Gourji, Fatemeh, and Dhayalan Velauthapillai. "A Review on Cs-Based Pb-Free Double Halide Perovskites: From Theoretical and Experimental Studies to Doping and Applications." Molecules 26, no. 7 (April 1, 2021): 2010. http://dx.doi.org/10.3390/molecules26072010.

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Despite the progressive enhancement in the flexibility of Pb-based perovskites for optoelectronic applications, regrettably, they are facing two main challenges; (1) instability, which originates from using organic components in the perovskite structure, and (2) toxicity due to Pb. Therefore, new, stable non-toxic perovskite materials are demanded to overcome these drawbacks. The research community has been working on a wide variety of Pb-free perovskites with different molecular formulas and dimensionality. A variety of Pb-free halide double perovskites have been widely explored by different research groups in search for stable, non-toxic double perovskite material. Especially, Cs-based Pb-free halide double perovskite has been in focus recently. Herein, we present a review of theoretical and experimental research on Cs-based Pb-free double halide perovskites of structural formulas Cs2M+M3+X6 (M+ = Ag+, Na+, In+ etc.; M3+= Bi3+, In3+, Sb3+; X = Cl−, Br−, I¯) and Cs2M4+X6 (M4+ = Ti4+, Sn4+, Au4+ etc.). We also present the challenges faced by these perovskite compounds and their current applications especially in photovoltaics alongside the effect of metal dopants on their performance.
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Ning, Weihua, Jinke Bao, Yuttapoom Puttisong, Fabrizo Moro, Libor Kobera, Seiya Shimono, Linqin Wang, et al. "Magnetizing lead-free halide double perovskites." Science Advances 6, no. 45 (November 2020): eabb5381. http://dx.doi.org/10.1126/sciadv.abb5381.

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Spintronics holds great potential for next-generation high-speed and low–power consumption information technology. Recently, lead halide perovskites (LHPs), which have gained great success in optoelectronics, also show interesting magnetic properties. However, the spin-related properties in LHPs originate from the spin-orbit coupling of Pb, limiting further development of these materials in spintronics. Here, we demonstrate a new generation of halide perovskites, by alloying magnetic elements into optoelectronic double perovskites, which provide rich chemical and structural diversities to host different magnetic elements. In our iron-alloyed double perovskite, Cs2Ag(Bi:Fe)Br6, Fe3+ replaces Bi3+ and forms FeBr6 clusters that homogenously distribute throughout the double perovskite crystals. We observe a strong temperature-dependent magnetic response at temperatures below 30 K, which is tentatively attributed to a weak ferromagnetic or antiferromagnetic response from localized regions. We anticipate that this work will stimulate future efforts in exploring this simple yet efficient approach to develop new spintronic materials based on lead-free double perovskites.
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Meyer, Edson, Dorcas Mutukwa, Nyengerai Zingwe, and Raymond Taziwa. "Lead-Free Halide Double Perovskites: A Review of the Structural, Optical, and Stability Properties as Well as Their Viability to Replace Lead Halide Perovskites." Metals 8, no. 9 (August 27, 2018): 667. http://dx.doi.org/10.3390/met8090667.

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Perovskite solar cells employ lead halide perovskite materials as light absorbers. These perovskite materials have shown exceptional optoelectronic properties, making perovskite solar cells a fast-growing solar technology. Perovskite solar cells have achieved a record efficiency of over 20%, which has superseded the efficiency of Gräztel dye-sensitized solar cell (DSSC) technology. Even with their exceptional optical and electric properties, lead halide perovskites suffer from poor stability. They degrade when exposed to moisture, heat, and UV radiation, which has hindered their commercialization. Moreover, halide perovskite materials consist of lead, which is toxic. Thus, exposure to these materials leads to detrimental effects on human health. Halide double perovskites with A2B′B″X6 (A = Cs, MA; B′ = Bi, Sb; B″ = Cu, Ag, and X = Cl, Br, I) have been investigated as potential replacements of lead halide perovskites. This work focuses on providing a detailed review of the structural, optical, and stability properties of these proposed perovskites as well as their viability to replace lead halide perovskites. The triumphs and challenges of the proposed lead-free A2B′B″X6 double perovskites are discussed here in detail.
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Evans, Hayden A., Lingling Mao, Ram Seshadri, and Anthony K. Cheetham. "Layered Double Perovskites." Annual Review of Materials Research 51, no. 1 (July 26, 2021): 351–80. http://dx.doi.org/10.1146/annurev-matsci-092320-102133.

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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 similarly vast range of functionality. Layered double perovskites (LDPs), a subset of this family, are obtained by suitable slicing and restacking of the perovskite structure, with the additional design feature of ordered cations and/or anions. In addition to inorganic LDPs, we also discuss hybrid (organic-inorganic) LDPs here, where the A-site cation is a protonated organic amine. Several examples of inorganic LDPs are presented with a discussion of their ferroic, magnetic, and optical properties. The emerging area of hybrid LDPs is particularly rich and is leading to exciting discoveries of new compounds with unique structures and fascinating optoelectronic properties. We provide context for what is important to consider when designing new materials and conclude with a discussion of future opportunities in the broad LDP area.
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Li, Xinlong, Suxian Fu, Mengyan Li, Kuan Cheng, and Shujuan Xiao. "Effect of Bimetallic and Halogen Ions on Performance in Inorganic Double Perovskites." Academic Journal of Science and Technology 2, no. 2 (August 8, 2022): 68–77. http://dx.doi.org/10.54097/ajst.v2i2.1164.

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In the context of low-carbon environmental protection, the de-leading of perovskite materials has become a hot spot in research, and replacing the position of lead in perovskites with suitable low-toxic elements is particularly important for improving the toxicity of perovskites. The proposal of all-inorganic bimetallic perovskites provides a new direction for the crystal structure composition of perovskites, and the substitution of lead ions by bimetallic ions greatly reduces the toxicity of perovskites and improves the stability of the material. However, new problems have also arisen, bimetallic perovskites have indirect band gaps will reduce the optical properties of perovskites, adjusting the band gap of compounds has become the main problem in the study of bimetallic perovskites, this paper reviews the impact of adjusting different B-bit ions and X-bit halogen ions on the performance of perovskites, and makes an outlook on the development prospects of perovskites.
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Fan, Ping, Huan-Xin Peng, Zhuang-Hao Zheng, Zi-Hang Chen, Shi-Jie Tan, Xing-Ye Chen, Yan-Di Luo, Zheng-Hua Su, Jing-Ting Luo, and Guang-Xing Liang. "Single-Source Vapor-Deposited Cs2AgBiBr6 Thin Films for Lead-Free Perovskite Solar Cells." Nanomaterials 9, no. 12 (December 11, 2019): 1760. http://dx.doi.org/10.3390/nano9121760.

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Lead-free double perovskites have been considered as a potential environmentally friendly photovoltaic material for substituting the hybrid lead halide perovskites due to their high stability and nontoxicity. Here, lead-free double perovskite Cs2AgBiBr6 films are initially fabricated by single-source evaporation deposition under high vacuum condition. X-ray diffraction and scanning electron microscopy characterization show that the high crystallinity, flat, and pinhole-free double perovskite Cs2AgBiBr6 films were obtained after post-annealing at 300 °C for 15 min. By changing the annealing temperature, annealing time, and film thickness, perovskite Cs2AgBiBr6 solar cells with planar heterojunction structure of FTO/TiO2/Cs2AgBiBr6/Spiro-OMeTAD/Ag achieve an encouraging power conversion efficiency of 0.70%. Our preliminary work opens a feasible approach for preparing high-quality double perovskite Cs2AgBiBr6 films wielding considerable potential for photovoltaic application.
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Chen, Yan-Long, Dan-Ni Yan, Ming-Wei Zeng, Cheng-Sheng Liao, and Meng-Qiu Cai. "2D and 3D double perovskite with dimensionality-dependent optoelectronic properties: first-principle study on Cs2AgBiBr6 and Cs4AgBiBr8." Journal of Physics: Condensed Matter 34, no. 6 (November 17, 2021): 065501. http://dx.doi.org/10.1088/1361-648x/ac34ae.

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Abstract Recently, the effect of dimensional control on the optoelectronic performance of two-dimensional (2D)/three-dimensional (3D) single perovskites has been confirmed. However, how the dimensional change affects the photoelectric properties of 2D/3D all-inorganic double perovskites remains unclear. In this study, we present a detailed theoretical research on a comparison between the optoelectronic properties of 3D all-inorganic double perovskite Cs2AgBiBr6 and recently reported 2D all-inorganic double perovskite Cs4AgBiBr8 with Ruddlesden–Popper (RP) structure based on density functional theory calculations. The results demonstrate the charge carrier mobility and absorption coefficients in the visible spectrum of Cs4AgBiBr8 (2D) is poorer than Cs2AgBiBr6 (3D). Moreover, the value of exciton-binding energy for 2D RP all-inorganic double perovskite Cs4AgBiBr8 (720 meV) is 3 times larger than that of 3D all-inorganic double perovskite Cs2AgBiBr6 (240 meV). Our works indicate that Cs4AgBiBr8 (2D) is a promising material for luminescent device, while Cs2AgBiBr6 (3D) may be suitable for photovoltaic applications. This study provides a theoretical guidance for the understanding of 2D RP all-inorganic double perovskite with potential applications in photo-luminescent devices.
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Bartel, Christopher J., Christopher Sutton, Bryan R. Goldsmith, Runhai Ouyang, Charles B. Musgrave, Luca M. Ghiringhelli, and Matthias Scheffler. "New tolerance factor to predict the stability of perovskite oxides and halides." Science Advances 5, no. 2 (February 2019): eaav0693. http://dx.doi.org/10.1126/sciadv.aav0693.

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Predicting the stability of the perovskite structure remains a long-standing challenge for the discovery of new functional materials for many applications including photovoltaics and electrocatalysts. We developed an accurate, physically interpretable, and one-dimensional tolerance factor, τ, that correctly predicts 92% of compounds as perovskite or nonperovskite for an experimental dataset of 576 ABX3 materials (X = O2−, F−, Cl−, Br−, I−) using a novel data analytics approach based on SISSO (sure independence screening and sparsifying operator). τ is shown to generalize outside the training set for 1034 experimentally realized single and double perovskites (91% accuracy) and is applied to identify 23,314 new double perovskites (A2BB′X6) ranked by their probability of being stable as perovskite. This work guides experimentalists and theorists toward which perovskites are most likely to be successfully synthesized and demonstrates an approach to descriptor identification that can be extended to arbitrary applications beyond perovskite stability predictions.
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Wu, Jionghua, Yusheng Li, Yiming Li, Weihao Xie, Jiangjian Shi, Dongmei Li, Shuying Cheng, and Qingbo Meng. "Using hysteresis to predict the charge recombination properties of perovskite solar cells." Journal of Materials Chemistry A 9, no. 10 (2021): 6382–92. http://dx.doi.org/10.1039/d0ta12046d.

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Dissertations / Theses on the topic "Double perovskites"

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Saines, Paul James. "Structural Studies of Lanthanide Double Perovskites." Thesis, The University of Sydney, 2008. http://hdl.handle.net/2123/3939.

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This project focuses on the examination of the structures of lanthanide containing double perovskites of the type Ba2LnB'O6-d (Ln = lanthanide or Y3+ and B' = Nb5+, Ta5+, Sb5+ and/or Sn4+) using synchrotron X-ray and neutron powder diffraction. The first part of this project examined the relative stability of R3 rhombohedral and I4/m tetragonal structures as the intermediate phase adopted by the series Ba2LnB'O6 (Ln = lanthanide (III) or Y3+ and B' = Nb5+, Ta5+ or Sb5+). It was found that I4/m tetragonal symmetry was favoured when B' was a transition metal with a small number of d electrons, such as Nb5+ or Ta5+. This is due to the presence of p-bonding in these compounds. In the Ba2LnNbO6 and Ba2LnTaO6 series R3 rhombohedral symmetry was, however, favoured over I4/m tetragonal symmetry when Ln = La3+ or Pr3+ due to the larger ionic radius of these cations. The incompatibility of the d0 and d10 B'-site cations in this family of compounds was indicated by significant regions of phase segregation in the two series Ba2Eu1-xPrxNb1-xSbxO6 and Ba2NdNb1-xSbxO6. In the second part of this project the compounds in the series Ba2LnSnxB'1-xO6-d (Ln = Pr, Nd or Tb and B' = Nb5+ or Sb5+) were examined to understand the relative stability of oxygen vacancies in these materials compared to the oxidation of the lanthanide cations and to determine if any oxygen vacancy ordering occurred. It was found, using a combination of structural characterisation, X ray Absorption Near Edge Structure and Ultra-Violet, Visible and Near Infrared spectroscopies, that with Ln = Pr or Tb increased Sn4+ doping results in a change in the oxidation state of the Ln3+ cations to Ln4+. This leads to those series containing little or no oxygen vacancies. A loss of B site cation ordering was found to accompany this oxidation state change and phase segregation was found to occur in the Ba2PrSnxSb1-xO6-d series most likely due to the Pr3+ and Pr4+ cations segregating into different phases. The Nd3+ cations in the series Ba2NdSnxSb1-xO6-d, however, can not oxidise to the tetravalent state so the number of oxygen vacancies rises with increasing x. It was found that oxygen vacancies concentrate onto the axial site of the compounds with x = 0.6 and 0.8 at ambient temperature. In Ba2Sn0.6Sb0.4O5.7 the oxygen vacancies were found to change to concentrating on the equatorial site at higher temperatures and it is suggested that this oxygen vacancy ordering plays a role in the adoption of I2/m monoclinic symmetry.
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Saines, Paul James. "Structural Studies of Lanthanide Double Perovskites." Faculty of Science. School of Chemistry, 2008. http://hdl.handle.net/2123/3939.

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Doctor of Philosophy(PhD)
This project focuses on the examination of the structures of lanthanide containing double perovskites of the type Ba2LnB'O6-d (Ln = lanthanide or Y3+ and B' = Nb5+, Ta5+, Sb5+ and/or Sn4+) using synchrotron X-ray and neutron powder diffraction. The first part of this project examined the relative stability of R3 rhombohedral and I4/m tetragonal structures as the intermediate phase adopted by the series Ba2LnB'O6 (Ln = lanthanide (III) or Y3+ and B' = Nb5+, Ta5+ or Sb5+). It was found that I4/m tetragonal symmetry was favoured when B' was a transition metal with a small number of d electrons, such as Nb5+ or Ta5+. This is due to the presence of p-bonding in these compounds. In the Ba2LnNbO6 and Ba2LnTaO6 series R3 rhombohedral symmetry was, however, favoured over I4/m tetragonal symmetry when Ln = La3+ or Pr3+ due to the larger ionic radius of these cations. The incompatibility of the d0 and d10 B'-site cations in this family of compounds was indicated by significant regions of phase segregation in the two series Ba2Eu1-xPrxNb1-xSbxO6 and Ba2NdNb1-xSbxO6. In the second part of this project the compounds in the series Ba2LnSnxB'1-xO6-d (Ln = Pr, Nd or Tb and B' = Nb5+ or Sb5+) were examined to understand the relative stability of oxygen vacancies in these materials compared to the oxidation of the lanthanide cations and to determine if any oxygen vacancy ordering occurred. It was found, using a combination of structural characterisation, X ray Absorption Near Edge Structure and Ultra-Violet, Visible and Near Infrared spectroscopies, that with Ln = Pr or Tb increased Sn4+ doping results in a change in the oxidation state of the Ln3+ cations to Ln4+. This leads to those series containing little or no oxygen vacancies. A loss of B site cation ordering was found to accompany this oxidation state change and phase segregation was found to occur in the Ba2PrSnxSb1-xO6-d series most likely due to the Pr3+ and Pr4+ cations segregating into different phases. The Nd3+ cations in the series Ba2NdSnxSb1-xO6-d, however, can not oxidise to the tetravalent state so the number of oxygen vacancies rises with increasing x. It was found that oxygen vacancies concentrate onto the axial site of the compounds with x = 0.6 and 0.8 at ambient temperature. In Ba2Sn0.6Sb0.4O5.7 the oxygen vacancies were found to change to concentrating on the equatorial site at higher temperatures and it is suggested that this oxygen vacancy ordering plays a role in the adoption of I2/m monoclinic symmetry.
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Sher, Falak. "Synthesis and properties of magnetoresistive double perovskites." Thesis, University of Cambridge, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.614834.

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McClure, Eric Thomas. "Synthesis and Characterization of New Visible Light Absorbing, Lead-Free Halide Double Perovskite Semiconductors." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1492431322941272.

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Wallace, Thomas Kerr. "The synthesis and characterisation of novel molybdenum double perovskites." Thesis, University of Aberdeen, 2014. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=225337.

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Interest in the molybdenum double perovskites has increased since the discovery of high temperature, low field magnetresistance in Sr2FeMoO6. Molybdenum double perovskites of the form Ba2LnMoO6 (where Ln = Sm, Sm0.5Eu0.5, Eu, Gd, Pr) as well as Sr2ScMoO6 have been synthesized by solid-state reactions up to 1200°C. Laboratory X-ray diffraction, variable temperature neutron and synchrotron X-ray diffraction as well as DC-SQUID magnetometry have been employed, in order to investigate the intricate relationship between spin, lattice and orbital degrees of freedom within these compounds. A variable temperature neutron diffraction experiment has been performed on the molybdenum double perovskite Ba2154SmMoO6 between 353 and 877 K in order to further investigate the crystal structure into the high temperature regime. Variable temperature neutron diffraction studies of Ba2PrMoO6 have been performed to investigate the links between structure, spin and orbital order in this material. A synchrotron X-ray diffraction study of Ba2GdMoO6 is detailed. Ba2GdMoO6 exhibits a ferroelastic phase transition below 220 K; the first time this has been reported in a Mo5+ double perovskite. Furthermore, a study of the geometrically frustrated double perovskite Sr2ScMoO6 has been carried out, in order to further investigate the exotic new valence bond glass phase. The results shed new light on the complex relationship between spin, lattice and orbital degrees of freedom in Ba2LnMoO6 double perovskites.
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Dass, Ronald Ian. "Magnetoresistance and properties of half-metallic, ferromagnetic double perovskites /." Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.

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Erten, Onur. "Electronic and Magnetic Properties of Double Perovskites and Oxide Interfaces." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1376496346.

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Barbosa, Rafael de Lima. "Propriedades dielétricas intrínsecas de perovskitas duplas RE2CoMnO6 (RE = íon terra-rara)." reponame:Repositório Institucional da UFC, 2017. http://www.repositorio.ufc.br/handle/riufc/25008.

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BARBOSA, R. de L. Propriedades dielétricas intrínsecas de perovskitas duplas RE2CoMnO6 (RE = íon terra-rara). 2017. 69 f. Dissertação (Mestrado em Física) – Centro de Ciências, Universidade Federal do Ceará, Fortaleza, 2017.
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Dielectric ceramics with ordered double perovskite structure and RE2CoMnO6 stoichiometry, in which RE is a rare-earth ion, are usually multiferroic with critical magnetic and electrical transition temperatures depending on the RE ion. This family of materials crystallizes in the P21/n symmetry when there is ordering of the Mn and Co ions. This monoclinic structure has a distortion directly dependent on the RE ionic size, influencing directly the properties of these materials. In this work, we investigate the intrinsic dielectric properties of these samples for RE = Tb, Dy, Ho, Yb and Tm. These properties were investigated by infrared reflection spectroscopy, allowing to estimate both the intrinsic static dielectric constant and the dielectric losses due to the polar phonons, which allows estimating the maximum microwave quality factor obtained when a resonator is formed with the respective materials. Our results show that, as obtained for La2CoMnO6 (LaCMO), the main compound of this family, the intrinsic static dielectric constant is reduced. In the case of LaCMO, dielectric measurements performed by other authors showed a colossal effect, whose origin was extrinsic effects. Therefore, our result allows to predict that any effect that leads to very high dielectric constants is extrinsic in this family of materials. In addition, the analysis of the quality factor showed that such ceramics have a quality factor compatible with those employed in microwave dielectric resonators since the low dielectric constant is not a problem.
As cerâmicas dielétricas com estrutura perovskita dupla ordenada com estequiometria RE2CoMnO6, na qual RE é um íon terra-rara, são usualmente multiferróicas com temperaturas críticas de transição magnética e elétrica dependendo do íon RE. Esta família de materiais cristaliza-se na simetria P21/n quando há o ordenamento dos íons Mn e Co. Esta estrutura monoclínica, tem um distorção diretamente ligada ao tamanho do íon RE, o que influencia diretamente suas propriedades. Neste trabalho investigamos as propriedades dielétricas intrínsecas destas amostras para RE = Tb, Dy, Ho, Yb e Tm. Tais propriedades foram investigadas por espectroscopia de reflexão especular no infravermelho, permitindo estimar tanto a constante dielétrica estática intrínseca devido aos fônons polares, como as perdas dielétricas devido a estes fônons, o que permite estimar o fator de qualidade em micro-ondas máximo obtido quando se conforma um ressonador dielétrico com o respectivo material. Nossos resultados mostram que, assim como obtido para o La2CoMnO6 (LaCMO), principal composto desta família, a constante dielétrica estática intrínseca é reduzida. No caso do LaCMO , medidas dielétricas realizadas por outros pesquisadores mostraram efeito colossal, cuja origem eram efeitos extrínsecos. Portanto, nosso resultado permite prever que qualquer efeito que leve a obter constantes dielétricas muito altas tem natureza extrínseca nesta família de materiais. Além disso, a análise do fator de qualidade mostrou que tais cerâmicas tem fator de qualidade compatível com aqueles empregados em ressonadores dielétricos para micro-ondas desde que a constante dielétrica baixa não seja um problema.
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Mishra, Rohan. "First Principles Study of Double Perovskites and Group III-V Compounds." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1345489862.

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Ball, Molly R. "First Principles Study of Electronic and Magnetic Structures in Double Perovskites." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1483702986122186.

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Book chapters on the topic "Double perovskites"

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Fu, Kunwu, Anita Wing Yi Ho-Baillie, Hemant Kumar Mulmudi, and Pham Thi Thu Trang. "Double Perovskites." In Perovskite Solar Cells, 245–50. Includes bibliographical references and index.: Apple Academic Press, 2019. http://dx.doi.org/10.1201/9780429469749-17.

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Ganose, Alex. "Vacancy-Ordered Double Perovskites." In Springer Theses, 87–106. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-55708-9_6.

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Douvalis, A. P., M. Venkatesan, and J. M. D. Coey. "Iron Valence in Double Perovskites." In Hyperfine Interactions (C), 131–33. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0281-3_33.

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Majid, Abdul, Muhammad Farooq Ahmad, and Tae-Sun Choi. "Lattice Constant Prediction of A2BB’O6 Type Double Perovskites." In Computational Science and Its Applications – ICCSA 2009, 82–92. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-02457-3_7.

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Gao, Haitao, Alexandra Jung, Irene Bonn, Vadim Ksenofontov, Sergey Reiman, Claudia Felser, Martin Panthöfer, and Wolfgang Tremel. "Substitution Effects in Double Perovskites: How the Crystal Structure Influences the Electronic Properties." In Spintronics, 61–70. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-90-481-3832-6_4.

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Igarashi, Hiroki, Nobuaki Yasuo, and Masakazu Sekijima. "Leave-One-Element-Out Cross-Validation for Band Gap Prediction of Halide Double Perovskites." In Advances in Parallel & Distributed Processing, and Applications, 759–68. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69984-0_55.

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Sharma, M. P., Anjali Krishnamurthy, and Bipin K. Srivastava. "Magnetization and Mössbauer study of double layer perovskites La1.5Ca1.5Mn2 − x Fe x O7 prepared by sol–gel method." In ICAME 2007, 615–20. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-78697-9_83.

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Baum, L. A., S. J. Stewart, R. C. Mercader, and J. M. Grenèche. "Magnetic Response and Hyperfine Magnetic Fields at Fe Sites of Sr3Fe2MO9 (M = Mo, Te, W, U) Double-Perovskites." In ICAME 2003, 157–63. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-1-4020-2852-6_24.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of double perovskite, LaCaMnNbO6." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 1, 29–31. Berlin, Heidelberg: Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-62478-4_6.

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Padhan, Prahallad, and Arunava Gupta. "Magnetic/Multifunctional Double Perovskite Oxide Thin Films." In Functional Metal Oxides, 51–87. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2013. http://dx.doi.org/10.1002/9783527654864.ch2.

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Conference papers on the topic "Double perovskites"

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Ning, Weihua, Xingang Zhao, Lijun Zhang, and Feng Gao. "Thermochromic Lead-free Halide Double Perovskites." In Photonics for Energy. Washington, D.C.: OSA, 2019. http://dx.doi.org/10.1364/pfe.2019.ptu3e.6.

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Wang, Feng, Fuxiang Ji, and Feng Gao. "Structure Engineering of Halide Double Perovskites." In International Conference on Hybrid and Organic Photovoltaics. València: Fundació Scito, 2022. http://dx.doi.org/10.29363/nanoge.hopv.2022.151.

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Morales-Masis, Monica. "Pulsed Laser Deposition of Lead-free Halide Perovskites and Double Perovskites." In Materials for Sustainable Development Conference (MAT-SUS). València: FUNDACIO DE LA COMUNITAT VALENCIANA SCITO, 2022. http://dx.doi.org/10.29363/nanoge.nfm.2022.121.

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Jha, Dhiraj Kumar, Golak Mandal, Chandan Ray, A. K. Himanshu, B. K. Singh, Uday Kumar, and B. K. Choudhary. "Ab initio study of double perovskites Ba2DySbO6." In DAE SOLID STATE PHYSICS SYMPOSIUM 2015. Author(s), 2016. http://dx.doi.org/10.1063/1.4948000.

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ji, Fuxiang, Feng Gao, Weihua Ning, and Feng Wang. "Bandgap Engineering of Lead-Free Halide Double Perovskites." In 13th Conference on Hybrid and Organic Photovoltaics. València: Fundació Scito, 2021. http://dx.doi.org/10.29363/nanoge.hopv.2021.039.

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Jobsis, Huygen, Joost Reinders, Ina Vollmer, and Eline Hutter. "Iron alloyed double perovskites for improved photochemical activity." In Materials for Sustainable Development Conference (MAT-SUS). València: FUNDACIO DE LA COMUNITAT VALENCIANA SCITO, 2022. http://dx.doi.org/10.29363/nanoge.nfm.2022.032.

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Mayr, Felix, and Alessio Gagliardi. "Machine learning based screening of mixed lead-free double-perovskites." In 2nd nanoGe International Conference on Perovskite Thin Film Photovoltaics and Perovskite Photonics and Optoelectronics. València: Fundació Scito, 2019. http://dx.doi.org/10.29363/nanoge.nipho.2020.037.

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Gatti, Teresa. "Compositional engineering in 2D monolayer silver-bismuth double perovskites." In Physical Chemistry of Semiconductor Materials and Interfaces XXI, edited by Andrew J. Musser and Derya Baran. SPIE, 2022. http://dx.doi.org/10.1117/12.2634211.

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Gatti, Teresa. "Compositional engineering in 2D monolayer silver-bismuth double perovskites." In MATSUS23 & Sustainable Technology Forum València (STECH23). València: FUNDACIO DE LA COMUNITAT VALENCIANA SCITO, 2022. http://dx.doi.org/10.29363/nanoge.matsus.2023.036.

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Ghosh, Soumen, Piotr Kabacinski, Hemen Hosseini, Shunran Li, Franco V. A. Camargo, Peijun Guo, and Giulio Cerullo. "Coherent Vibrational Dynamics of Exciton Self-Trapping in Lead-Free Double Halide Perovskites." In International Conference on Ultrafast Phenomena. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/up.2022.tu4a.51.

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Abstract:
We have directly observed the vibrationally coherent formation of self-trapped excitons in perovskites using sub-30 fs UV-pumped transient absorption spectroscopy. Strongly damped, excited-state structural distortions promote its formation on a sub-110 fs time scale.
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Reports on the topic "Double perovskites"

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Bao, W., J. D. Axe, C. H. Chen, S. W. Cheong, P. Schiffer, and M. Roy. From double exchange to superexchange in charge ordering perovskite manganites. Office of Scientific and Technical Information (OSTI), August 1998. http://dx.doi.org/10.2172/307963.

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Rutstrom, Daniel, Mariya Zhuravleva, and Kenneth Mcclellan. Evaluating New Double Perovskite Halide Scintillators for Radiation Detection Applications. Office of Scientific and Technical Information (OSTI), August 2021. http://dx.doi.org/10.2172/1813814.

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Rutstrom, Daniel, and Kenneth Mcclellan. Summary of Summer Project: Evaluating New Double Perovskite Halide Scintillators for Radiation Detection Applications. Office of Scientific and Technical Information (OSTI), August 2021. http://dx.doi.org/10.2172/1818093.

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