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Muzzillo CP, Ciobanu CV, Moore DT. High-entropy alloy screening for halide perovskites. MATERIALS HORIZONS 2024; 11:3662-3694. [PMID: 38767287 DOI: 10.1039/d4mh00464g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
As the concept of high-entropy alloying (HEA) extends beyond metals, new materials screening methods are needed. Halide perovskites (HP) are a prime case study because greater stability is needed for photovoltaics applications, and there are 322 experimentally observed HP end-members, which leads to more than 1057 potential alloys. We screen HEAHP by first calculating the configurational entropy of 106 equimolar alloys with experimentally observed end-members. To estimate enthalpy at low computational cost, we turn to the delta-lattice parameter approach, a well-known method for predicting III-V alloy miscibility. To generalize the approach for non-cubic crystals, we introduce the parameter of unit cell volume coefficient of variation (UCV), which does a good job of predicting the experimental HP miscibility data. We use plots of entropy stabilization versus UCV to screen promising alloys and identify 102 HEAHP of interest.
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Affiliation(s)
| | | | - David T Moore
- National Renewable Energy Laboratory, Golden, CO, USA.
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2
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Zhang B, Lei G, You S, Zhao W, Liu H. DFT Investigation of Structural Stability, Optical Properties, and PCE for All-Inorganic Cs x(Pb/Sn) yX z Halide Perovskites. Inorg Chem 2024; 63:3303-3316. [PMID: 38329057 DOI: 10.1021/acs.inorgchem.3c03595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Employing all-inorganic perovskites as light harvesters has recently drawn increasing attention owing to the strong-bonded inorganic components in the crystal. To achieve the systematic and comprehensive understanding for the structures and properties of Csx(Pb/Sn)yXz (X = F, Cl, Br, I) perovskites, this work provides the comparison details about crystal structures, optical properties, electronic structures and power conversion efficiency (PCE) of 18 perovskites. The suitable band gaps are detected in CsSnCl3-Pm3̅m (0.96 eV), γ-CsPbI3-Pnma (1.75 eV), and CsPbBr3-Pm3̅m (1.78 eV), facilitating the conversion from absorbing photon energy to generating hole-electron pairs. γ-CsPbI3-Pnma and CsSnI3-P4/mbm show superior visible-absorption performance depending on their higher absorption coefficient (α); meanwhile, strong peaks can be observed in the real part (Re) of photoconductivity of CsPbBr3-Pbnm, γ-CsPbI3-Pnma, and CsSnI3-P4/mbm in the visible-light range, implying their better photoelectric conversion abilities. The perovskite/tungsten disulfide (WS2) heterojunctions are constructed to calculate the PCE. Although just the PCE result (14.43%) of CsSnI3-Pnma/WS2 is reluctantly competitive, the predictions of PCEs indicate that the PCE of PSCs (perovskite solar cells) can be improved by not only regulating the perovskite to upgrade its own performance but also designing the PSC structure reasonably including the selection of appropriate ETL/HTL (electron/hole transport layer), etc.
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Affiliation(s)
- Bo Zhang
- School of Materials Science and Engineering, Tianjin Chengjian University, Tianjin 300384, PR China
- Tianjin Key Laboratory of Building Green Functional Materials, Tianjin 300384, PR China
| | - Guanghui Lei
- School of Materials Science and Engineering, Tianjin Chengjian University, Tianjin 300384, PR China
- Tianjin Key Laboratory of Building Green Functional Materials, Tianjin 300384, PR China
| | - Shuyue You
- School of Materials Science and Engineering, Tianjin Chengjian University, Tianjin 300384, PR China
- Tianjin Key Laboratory of Building Green Functional Materials, Tianjin 300384, PR China
| | - Wei Zhao
- School of Materials Science and Engineering, Tianjin Chengjian University, Tianjin 300384, PR China
- Tianjin Key Laboratory of Building Green Functional Materials, Tianjin 300384, PR China
| | - Hongli Liu
- School of Materials Science and Engineering, Tianjin Chengjian University, Tianjin 300384, PR China
- Tianjin Key Laboratory of Building Green Functional Materials, Tianjin 300384, PR China
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3
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Metcalf I, Sidhik S, Zhang H, Agrawal A, Persaud J, Hou J, Even J, Mohite AD. Synergy of 3D and 2D Perovskites for Durable, Efficient Solar Cells and Beyond. Chem Rev 2023; 123:9565-9652. [PMID: 37428563 DOI: 10.1021/acs.chemrev.3c00214] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
Three-dimensional (3D) organic-inorganic lead halide perovskites have emerged in the past few years as a promising material for low-cost, high-efficiency optoelectronic devices. Spurred by this recent interest, several subclasses of halide perovskites such as two-dimensional (2D) halide perovskites have begun to play a significant role in advancing the fundamental understanding of the structural, chemical, and physical properties of halide perovskites, which are technologically relevant. While the chemistry of these 2D materials is similar to that of the 3D halide perovskites, their layered structure with a hybrid organic-inorganic interface induces new emergent properties that can significantly or sometimes subtly be important. Synergistic properties can be realized in systems that combine different materials exhibiting different dimensionalities by exploiting their intrinsic compatibility. In many cases, the weaknesses of each material can be alleviated in heteroarchitectures. For example, 3D-2D halide perovskites can demonstrate novel behavior that neither material would be capable of separately. This review describes how the structural differences between 3D halide perovskites and 2D halide perovskites give rise to their disparate materials properties, discusses strategies for realizing mixed-dimensional systems of various architectures through solution-processing techniques, and presents a comprehensive outlook for the use of 3D-2D systems in solar cells. Finally, we investigate applications of 3D-2D systems beyond photovoltaics and offer our perspective on mixed-dimensional perovskite systems as semiconductor materials with unrivaled tunability, efficiency, and technologically relevant durability.
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Affiliation(s)
- Isaac Metcalf
- Department of Materials Science and NanoEngineering, Rice University, Houston, Texas 77005, United States
| | - Siraj Sidhik
- Department of Materials Science and NanoEngineering, Rice University, Houston, Texas 77005, United States
| | - Hao Zhang
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
- Applied Physics Graduate Program, Smalley-Curl Institute, Rice University, Houston, Texas 77005, United States
| | - Ayush Agrawal
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | - Jessica Persaud
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | - Jin Hou
- Department of Materials Science and NanoEngineering, Rice University, Houston, Texas 77005, United States
| | - Jacky Even
- Université de Rennes, INSA Rennes, CNRS, Institut FOTON - UMR 6082, 35708 Rennes, France
| | - Aditya D Mohite
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
- Applied Physics Graduate Program, Smalley-Curl Institute, Rice University, Houston, Texas 77005, United States
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4
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Varadwaj PR, Varadwaj A, Marques HM, Yamashita K. The Tetrel Bond and Tetrel Halide Perovskite Semiconductors. Int J Mol Sci 2023; 24:6659. [PMID: 37047632 PMCID: PMC10094773 DOI: 10.3390/ijms24076659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 03/21/2023] [Accepted: 03/23/2023] [Indexed: 04/05/2023] Open
Abstract
The ion pairs [Cs+•TtX3-] (Tt = Pb, Sn, Ge; X = I, Br, Cl) are the building blocks of all-inorganic cesium tetrel halide perovskites in 3D, CsTtX3, that are widely regarded as blockbuster materials for optoelectronic applications such as in solar cells. The 3D structures consist of an anionic inorganic tetrel halide framework stabilized by the cesium cations (Cs+). We use computational methods to show that the geometrical connectivity between the inorganic monoanions, [TtX3-]∞, that leads to the formation of the TtX64- octahedra and the 3D inorganic perovskite architecture is the result of the joint effect of polarization and coulombic forces driven by alkali and tetrel bonds. Depending on the nature and temperature phase of these perovskite systems, the Tt···X tetrel bonds are either indistinguishable or somehow distinguishable from Tt-X coordinate bonds. The calculation of the potential on the electrostatic surface of the Tt atom in molecular [Cs+•TtX3-] provides physical insight into why the negative anions [TtX3-] attract each other when in close proximity, leading to the formation of the CsTtX3 tetrel halide perovskites in the solid state. The inter-molecular (and inter-ionic) geometries, binding energies, and charge density-based topological properties of sixteen [Cs+•TtX3-] ion pairs, as well as some selected oligomers [Cs+•PbI3-]n (n = 2, 3, 4), are discussed.
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Affiliation(s)
- Pradeep R. Varadwaj
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1, Tokyo 113-8656, Japan
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Johannesburg 2050, South Africa
| | - Arpita Varadwaj
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1, Tokyo 113-8656, Japan
| | - Helder M. Marques
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Johannesburg 2050, South Africa
| | - Koichi Yamashita
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1, Tokyo 113-8656, Japan
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5
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Yadav R, Srivastava A, Sharma R, Abraham JA, Dar SA, Mishra AK, Srivastava V. The study of optical and thermoelectric behaviour of thalium based flouropervoskite (TlSiF3) for photovoltaic and renewable energy applications by DFT. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123266] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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6
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El-Kelany KE, Pascale F, Platonenko A, Ferrari AM, Dovesi R. Quantum mechanical simulation of various phases of KVF 3perovskite. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 34:285401. [PMID: 35447613 DOI: 10.1088/1361-648x/ac6925] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 04/21/2022] [Indexed: 06/14/2023]
Abstract
The relative stability ΔEof the cubicPm3¯m(C), of the two tetragonalP4mbm(T1) andI4mcm(T2), and of the orthorhombicPbnm(O) phases of KVF3has been computed both for the ferromagnetic (FM) and antiferromagnetic (AFM) solutions, by using the B3LYP full range hybrid functional and the Hartree-Fock (HF) Hamiltonian, an all-electron Gaussian type basis set and the CRYSTAL code. The stabilization of the T2 phase with respect to the C one (152μHa for B3LYP, 180μHa for HF, per 2 formula units) is due to the rotation of the VF6octahedra with respect to thecaxis, by 4.1-4.6 degrees. The O phase is slightly less stable than the T2 phase (by 6 and 20μHa for B3LYP and HF); it is, however, a stable structure as the dynamical analysis confirms. The mechanism of the stabilization of the AFM solution with respect to the FM one is discussed through the spin density maps, and is related to the key role of the exact exchange term (20% in B3LYP, 100% in HF). The G-AFM phase (the first six neighbors of the reference V ion with spin reversed) is more stable than the FM one by about 500 (HF) and 1800 (B3LYP)μHa per two formula units. A volume reduction is observed in the C to T passage, and in the FM to AFM one, both being of the order of 0.3-0.5A˚3at the B3LYP level. Atomic charges, magnetic moments and bond populations, evaluated according to a Mulliken partition of the charge a spin density functions, complete the analysis. The IR and Raman spectra of the FM and AFM C, T2 and O cells are discussed; the only noticeable difference between the various space groups appears in the modes with wavenumbers lower than 100 cm-1.
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Affiliation(s)
- Khaled E El-Kelany
- Institute of Nanoscience and Nanotechnology, Kafrelsheikh University, 33516 Kafr el-skiekh, Egypt
| | - Fabien Pascale
- Université de Lorraine-Nancy, CNRS, Laboratoire de Physique et Chimie Théoriques, UMR 7019, Vandoeuvre-les-Nancy, France
| | - Alexander Platonenko
- Institute of Solid State Physics, University of Latvia, 8 Kengaraga street, LV1063 Riga, Latvia
| | - Anna Maria Ferrari
- Dipartimento di Chimica, Università di Torino, NIS (Nanostructured Interfaces and Surfaces) Centre, Via P. Giuria 5, 10125 Torino, Italy
| | - Roberto Dovesi
- Dipartimento di Chimica, Università di Torino, NIS (Nanostructured Interfaces and Surfaces) Centre, Via P. Giuria 5, 10125 Torino, Italy
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7
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Löber M, Ströbele M, Eichele K, Romao CP, Meyer H. The Lithium Iodostannate LiSn
3
I
7
: Synthesis, Properties and its Relationship to SnI
2. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Manuel Löber
- Section for Solid-state and Theoretical Inorganic Chemistry Institute of Inorganic Chemistry Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Markus Ströbele
- Section for Solid-state and Theoretical Inorganic Chemistry Institute of Inorganic Chemistry Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Klaus Eichele
- Institute of Inorganic Chemistry Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Carl P. Romao
- Section for Solid-state and Theoretical Inorganic Chemistry Institute of Inorganic Chemistry Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Hans‐Jürgen Meyer
- Section for Solid-state and Theoretical Inorganic Chemistry Institute of Inorganic Chemistry Auf der Morgenstelle 18 72076 Tübingen Germany
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8
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Ji M, Hu C, Fang Z, Chen Y, Mao J. Tin(II)-Induced Large Birefringence Enhancement in Metal Phosphates. Inorg Chem 2021; 60:15744-15750. [PMID: 34569796 DOI: 10.1021/acs.inorgchem.1c02388] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Two alkali tin(II) phosphates, namely, Rb[SnF(HPO4)] and Rb(Sn3O)2(PO4)3, were synthesized through mild hydrothermal methods. They belong to the orthorhombic Pnma and Pbcn space groups, respectively. Rb[SnF(HPO4)] features a layered structure based on 1D [SnF(HPO4)]∞ chains interconnected by hydrogen bonds, with Rb+ cations located at the interlayer space. For Rb(Sn3O)2(PO4)3, each pair of [Sn3O]4+ clusters is bridged by a pair of [P(1)O4]3- tetrahedra to build a 1D [Sn-P-O]∞ chain. These 1D [Sn-P-O]∞ chains are further cross-linked though [P(2)O4]3- tetrahedra to construct a 3D network with 7- and 10-membered-ring channels. The tin(II) ions in Rb[SnF(HPO4)] and Rb(Sn3O)2(PO4)3 with stereochemically active lone pairs (SCALPs) significantly enhance the birefringences of metal phosphates: Δn = 0.147@1064 nm for Rb[SnF(HPO4)] and 0.082@1064 nm for Rb(Sn3O)2(PO4)3.
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Affiliation(s)
- Mengya Ji
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People's Republic of China.,University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Chunli Hu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People's Republic of China
| | - Zhi Fang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People's Republic of China
| | - Yan Chen
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People's Republic of China.,University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China.,School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, People's Republic of China
| | - Jianggao Mao
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People's Republic of China
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9
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Stoll C, van Gerven D, Huppertz H. Serendipitous formation of K 15NaSn 5F 36. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2020. [DOI: 10.1515/znb-2019-0201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
K15NaSn5F36 crystallizes in the hexagonal crystal system with space group P63/m and lattice parameters of a = 1060.3(2) and c = 2011.9(4) pm. The unit-cell volume amounts to 1.9588(7) nm3. Its fundamental building blocks are quasi-isolated [SnF6]2− and [NaF6]5− octahedra, which are imbedded into a matrix of potassium cations. Within the structure, these units form a layer-like arrangement consisting either of mixed [SnF6]2−/[NaF6]5− or pure [SnF6]2− layers. The structural model was further confirmed by BLBS and CHARDI calculations.
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Affiliation(s)
- Christiane Stoll
- Institut für Allgemeine, Anorganische und Theoretische Chemie , Universität Innsbruck , Innrain 80–82, 6020 Innsbruck , Austria
| | - David van Gerven
- Institut für Anorganische Chemie , Universität zu Köln , Greinstraße 6, 50939 Köln , Germany
| | - Hubert Huppertz
- Institut für Allgemeine, Anorganische und Theoretische Chemie , Universität Innsbruck , Innrain 80–82, 6020 Innsbruck , Austria
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10
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Wu J, Fang F, Zhao Z, Li T, Ullah R, Lv Z, Zhou Y, Sawtell D. Fluorine ion induced phase evolution of tin-based perovskite thin films: structure and properties. RSC Adv 2019; 9:37119-37126. [PMID: 35539092 PMCID: PMC9075532 DOI: 10.1039/c9ra07415e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Accepted: 10/30/2019] [Indexed: 11/21/2022] Open
Abstract
To study the effect of fluorine ions on the phase transformation of a tin-based perovskite, CsSnI3-x (F) x films were deposited by using thermal vacuum evaporation from a mixed powder of SnI2, SnF2 and CsI, followed by rapid vacuum annealing. The color evolution, structure, and properties of CsSnI3-x F x films aged in air were observed and analyzed. The results showed that the colors of the films changed from black to yellow, and finally presented as black again over time; the unstable B-γ-CsSnI3-x F x phase transformed into the Y-CsSnI3-x F x phase, which is then recombined into the Cs2SnI6-x F x phase with the generation of SnO2 in air. Fluorine dopant inhibited the oxidation process. The postponement of the phase transformation is due to the stronger bonds between F and Sn than that between I and Sn. The color changing process of the CsSnI3-x F x films slowed that the hole concentrations increased and the resistivities decreased with the increase of the F dopant ratio. With the addition of SnF2, light harvesting within the visible light region was significantly enhanced. Comparison of the optical and electrical properties of the fresh annealed CsSnI3-x F x films showed that the band gaps of the aged films widened, the hole concentrations kept the same order, the hole mobilities reduced and therefore, the resistivities increased. The double layer Cs2SnI6-x F x phase also showed 'p' type semi-conductor properties, which might be due to the incomplete transition of Sn2+ to Sn4+, i.e. Sn2+ provides holes as the acceptor.
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Affiliation(s)
- Junsheng Wu
- School of Chemical Engineering, University of Science and Technology Liaoning 114051 Liaoning Anshan China
- Institute of Surface Engineering, University of Science and Technology Liaoning Anshan 114051 Liaoning China
| | - Fang Fang
- School of Chemical Engineering, University of Science and Technology Liaoning 114051 Liaoning Anshan China
| | - Zhuo Zhao
- School of Chemical Engineering, University of Science and Technology Liaoning 114051 Liaoning Anshan China
- Institute of Surface Engineering, University of Science and Technology Liaoning Anshan 114051 Liaoning China
| | - Tong Li
- School of Chemical Engineering, University of Science and Technology Liaoning 114051 Liaoning Anshan China
- Institute of Surface Engineering, University of Science and Technology Liaoning Anshan 114051 Liaoning China
| | - Rizwan Ullah
- Department of Physics, Beijing Normal University 100875 Beijing China
| | - Zhe Lv
- Institute of Surface Engineering, University of Science and Technology Liaoning Anshan 114051 Liaoning China
| | - Yanwen Zhou
- School of Chemical Engineering, University of Science and Technology Liaoning 114051 Liaoning Anshan China
| | - David Sawtell
- Surface Engineering Group, Manchester Metropolitan University Manchester M1 5GD England UK
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11
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Gong P, Luo S, Huang Q, Yang Y, Jiang X, Liang F, Chen C, Lin Z. An alkaline tin(II) halide compound Na 3 Sn 2 F 6 Cl: Synthesis, structure, and characterization. J SOLID STATE CHEM 2017. [DOI: 10.1016/j.jssc.2017.01.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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12
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Fabini DH, Laurita G, Bechtel JS, Stoumpos CC, Evans HA, Kontos AG, Raptis YS, Falaras P, Van der Ven A, Kanatzidis MG, Seshadri R. Dynamic Stereochemical Activity of the Sn2+ Lone Pair in Perovskite CsSnBr3. J Am Chem Soc 2016; 138:11820-32. [DOI: 10.1021/jacs.6b06287] [Citation(s) in RCA: 165] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Douglas H. Fabini
- Materials
Research Laboratory, University of California, Santa Barbara, California 93106, United States
- Materials
Department, University of California, Santa Barbara, California 93106, United States
| | - Geneva Laurita
- Materials
Research Laboratory, University of California, Santa Barbara, California 93106, United States
| | - Jonathon S. Bechtel
- Materials
Research Laboratory, University of California, Santa Barbara, California 93106, United States
- Materials
Department, University of California, Santa Barbara, California 93106, United States
| | - Constantinos C. Stoumpos
- Department
of Chemistry and Argonne-Northwestern Solar Energy Research (ANSER)
Center, Northwestern University, Evanston, Illinois 60208, United States
| | - Hayden A. Evans
- Materials
Research Laboratory, University of California, Santa Barbara, California 93106, United States
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | | | - Yannis S. Raptis
- Physics
Department, National Technical University of Athens, 15780 Zografou, Athens, Greece
| | - Polycarpos Falaras
- Institute
of Nanoscience and Nanotechnology, NCSR Demokritos, 15310 Athens, Greece
| | - Anton Van der Ven
- Materials
Research Laboratory, University of California, Santa Barbara, California 93106, United States
- Materials
Department, University of California, Santa Barbara, California 93106, United States
| | - Mercouri G. Kanatzidis
- Department
of Chemistry and Argonne-Northwestern Solar Energy Research (ANSER)
Center, Northwestern University, Evanston, Illinois 60208, United States
| | - Ram Seshadri
- Materials
Research Laboratory, University of California, Santa Barbara, California 93106, United States
- Materials
Department, University of California, Santa Barbara, California 93106, United States
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
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13
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Gerke B, Tran TT, Pöttgen R, Halasyamani PS. 119Sn Mössbauer spectroscopy of solvothermally synthesized fluorides ASnF3 (A = Na, K, Rb, Cs). ACTA ACUST UNITED AC 2015. [DOI: 10.1515/znb-2015-0099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The complex Sn(II) fluorides ASnF3 (A = Na, K, Rb, Cs) were synthesized from the alkali fluorides and SnF2 in methanol through a solvothermal route. Their 119Sn Mössbauer spectra manifest divalent tin. The isomer shifts range from 3.09 to 2.94 mm s–1. The pronounced lone-pair character at the Sn(II) centres is expressed by strong electric quadrupole splitting (1.91–1.95 mm s–1). The two, respectively four crystallographically independent tin sites in NaSnF3, KSnF3 and RbSnF3 could not be resolved in the 119Sn spectra.
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Affiliation(s)
- Birgit Gerke
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstrasse 30, 48149 Münster, Germany
| | - Thanh Thao Tran
- Department of Chemistry, University of Houston, 112 Fleming Building, Houston, TX 77204-5003, USA
| | - Rainer Pöttgen
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstrasse 30, 48149 Münster, Germany
| | - P. Shiv Halasyamani
- Department of Chemistry, University of Houston, 112 Fleming Building, Houston, TX 77204-5003, USA
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14
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Mechanochemical synthesis of layered perovskite structured fluorides A2MF4 (A=K, Rb; M=Co, Cu, Mg) and their transformation to AMF3 phase by mechanical activation. J Fluor Chem 2014. [DOI: 10.1016/j.jfluchem.2014.06.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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