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1

Karaman, Ali, Zehra Akdeniz, and Mario P. Tosi. "Transferable Deformation-Dipole Model for Ionic Materials." Zeitschrift für Naturforschung A 62, no. 5-6 (June 1, 2007): 265–69. http://dx.doi.org/10.1515/zna-2007-5-606.

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A model for the ionic interactions in polyvalent metal halides was originally built for chloroaluminate clusters using an analysis of data on static and dynamic structure of their molecular monomers [for a review see M. P. Tosi, Phys. Chem. Liquids 43, 409 (2005)]. Recently, by continuing the deformation-dipole model calculations, the transferability of the halogen parameters was tested through the calculation of the structure of alkali halides and alkaline-earth halides. In this work we test the usefulness of the deformation-dipole model in the study of ionic materials by examining the transferability of the overlap parameters for the halogen ions across families of halide compounds. Following a comparative discussion of alkali and alkaline-earth halide monomers near equilibrium, results on alkaline-earth halides are given. By using the transferable ionic potential model we also calculate the equilibrium structure of the molecular clusters, as well as the vibrational frequencies of ACl4 compounds (where A = U, Np, Pu, Am and Th).
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2

Han, Dan, Hongliang Shi, Wenmei Ming, Chenkun Zhou, Biwu Ma, Bayrammurad Saparov, Ying-Zhong Ma, Shiyou Chen, and Mao-Hua Du. "Unraveling luminescence mechanisms in zero-dimensional halide perovskites." Journal of Materials Chemistry C 6, no. 24 (2018): 6398–405. http://dx.doi.org/10.1039/c8tc01291a.

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Анотація:
Zero-dimensional (0D) halides perovskites, in which anionic metal-halide octahedra (MX6)4− are separated by organic or inorganic countercations, have recently shown promise as excellent luminescent materials.
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3

Ganose, Alex M., Keith T. Butler, Aron Walsh, and David O. Scanlon. "Relativistic electronic structure and band alignment of BiSI and BiSeI: candidate photovoltaic materials." Journal of Materials Chemistry A 4, no. 6 (2016): 2060–68. http://dx.doi.org/10.1039/c5ta09612j.

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Анотація:
Bismuth-based solar absorbers are of interest due to similarities in the chemical properties of bismuth halides and the exceptionally efficient lead halide hybrid perovskites. Here, we computationally screen BiSI and BiSeI and show they possess electronic structures ideal for solar cell applications.
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4

Lai, Yu-Shiuan, Tao-Wei Yang, Ming-Show Wong, Yi-Hao Pai, and Su-Hua Chen. "Water-splitting using photoelectrodes of titania and titania-perovskite halite composite films." MRS Proceedings 1776 (2015): 7–12. http://dx.doi.org/10.1557/opl.2015.434.

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ABSTRACTTitanium oxide photoelectrodes have been used for water splitting for a few decades, but have low solar-to-hydrogen efficiencies. Perovskite halides (e.g., CH3NH3PbI3) have recently emerged as an efficient light absorber system. We try to combine the two materials to create new photoelectrodes to achieve a higher efficiency for hydrogen production. The photoelectrodes are investigated for water-splitting hydrogen production under Xe light irradiation by photoelectrochemical (PEC) reaction. Since perovskite halides are favorable light harvesters under UV and visible light irradiation, the composite films of titania and perovskite halide would achieve efficient water splitting. The hydrogen production rate using the composite films is higher than that using anatase TiO2 electrode. However, the composite films are not stable in water under light irradiation and the perovskite halide gradually decomposes into lead halide.
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5

Li, Chonghea, Xionggang Lu, Weizhong Ding, Liming Feng, Yonghui Gao, and Ziming Guo. "Formability of ABX 3 (X = F, Cl, Br, I) halide perovskites." Acta Crystallographica Section B Structural Science 64, no. 6 (November 14, 2008): 702–7. http://dx.doi.org/10.1107/s0108768108032734.

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Анотація:
In this study a total of 186 complex halide systems were collected; the formabilities of ABX 3 (X = F, Cl, Br and I) halide perovskites were investigated using the empirical structure map, which was constructed by Goldschmidt's tolerance factor and the octahedral factor. A model for halide perovskite formability was built up. In this model obtained, for all 186 complex halides systems, only one system (CsF–MnF2) without perovskite structure and six systems (RbF–PbF2, CsF–BeF2, KCl–FeCl2, TlI–MnI2, RbI–SnI2, TlI–PbI2) with perovskite structure were wrongly classified, so its predicting accuracy reaches 96%. It is also indicated that both the tolerance factor and the octahedral factor are a necessary but not sufficient condition for ABX 3 halide perovskite formability, and a lowest limit of the octahedral factor exists for halide perovskite formation. This result is consistent with our previous report for ABO3 oxide perovskite, and may be helpful to design novel halide materials with the perovskite structure.
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6

Mazurin, Maxim, Angelika Shelestova, Dmitry Tsvetkov, Vladimir Sereda, Ivan Ivanov, Dmitry Malyshkin, and Andrey Zuev. "Thermochemical Study of CH3NH3Pb(Cl1−xBrx)3 Solid Solutions." Materials 15, no. 21 (November 1, 2022): 7675. http://dx.doi.org/10.3390/ma15217675.

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Hybrid organic–inorganic perovskite halides, and, in particular, their mixed halide solid solutions, belong to a broad class of materials which appear promising for a wide range of potential applications in various optoelectronic devices. However, these materials are notorious for their stability issues, including their sensitivity to atmospheric oxygen and moisture as well as phase separation under illumination. The thermodynamic properties, such as enthalpy, entropy, and Gibbs free energy of mixing, of perovskite halide solid solutions are strongly required to shed some light on their stability. Herein, we report the results of an experimental thermochemical study of the CH3NH3Pb(Cl1−xBrx)3 mixed halides by solution calorimetry. Combining these results with molecular dynamics simulation revealed the complex and irregular shape of the compositional dependence of the mixing enthalpy to be the result of a complex interplay between the local lattice strain, hydrogen bonds, and energetics of these solid solutions.
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7

Oku, Takeo. "Crystal structures of perovskite halide compounds used for solar cells." REVIEWS ON ADVANCED MATERIALS SCIENCE 59, no. 1 (July 4, 2020): 264–305. http://dx.doi.org/10.1515/rams-2020-0015.

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AbstractThe crystal structures of various types of perovskite halide compounds were summarized and described. Atomic arrangements of these perovskite compounds can be investigated by X-ray diffraction and transmission electron microscopy. Based on the structural models of basic perovskite halides, X-ray and electron diffractions were calculated and discussed to compare with the experimental data. Other halides such as elemental substituted or cation ordered double perovskite compounds were also described. In addition to the ordinary 3-dimensional perovskites, low dimensional perovskites with 2-, 1-, or 0-dimensionalities were summarized. The structural stabilities of the perovskite halides could be investigated computing the tolerance and octahedral factors, which can be useful for the guideline of elemental substitution to improve the structures and properties, and several low toxic halides were proposed. For the device conformation, highly crystalline-orientated grains and dendritic structures can be formed and affected the photo-voltaic properties. The actual crystal structures of perovskite halides in the thin film configuration were studied by Rietveld analysis optimizing the atomic coordinates and occupancies with low residual factors. These results are useful for structure analysis of perovskite halide crystals, which are expected to be next-generation solar cell materials.
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8

Slabbert, Cara, and Melanie Rademeyer. "Halide-bridged Polymers of d10Metals with Heterocyclic Type Donor Ligands." Acta Crystallographica Section A Foundations and Advances 70, a1 (August 5, 2014): C1025. http://dx.doi.org/10.1107/s2053273314089748.

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Molecular self-assembly of organic ligands and inorganic metal halides leads to the formation of layered nano-composite organic-inorganic hybrid materials. The formation of both ionic- and coordination hybrids is possible. Both of these materials have attracted much attention recently in the field of Crystal Engineering [1], due to the retention and combination of desired inherent properties of both constitutional moieties, which then renders these materials multifunctional with a wide range of potential technological applications. Properties attributed to the organic component include structural diversity and optical properties [2], with mechanical hardness, electronic-, magnetic- and optical properties ascribed to the inorganic component. The coordination of an organic amine functionality to a metal halide results in the formation of halide-bridged polymers coordinated to donor ligands, with reported properties including non-linear optic (NLO) behavior, magnetic properties [3] and electronic semi-conduction. Literature confirms the technological importance of these materials and identifies the need for research aiming at a fundamental understanding of factors that control the observed structural trends and to relate chemical composition and topology of these compounds to ultimately enable retrosynthesis from desired property. In this study, a range of different divalent d10metal halides are combined with different aromatic nitrogen-containing organic ligands. The effects of change in metal atom, halide atom, stoichiometry and reaction conditions on the structural trends in the crystal systems are investigated. The molecular self-assembly of the said halide-bridged polymers is initiated by simple synthetic techniques under relatively mild conditions, at the most, hydrothermal reaction conditions. Structural characterisation was done employing single crystal X-ray diffraction, while bulk composition of the samples was investigated using powder X-ray diffraction.
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9

Tan, Yimei, Ge Mu, Menglu Chen, and Xin Tang. "X-ray Detectors Based on Halide Perovskite Materials." Coatings 13, no. 1 (January 16, 2023): 211. http://dx.doi.org/10.3390/coatings13010211.

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Анотація:
Halide perovskite has remarkable optoelectronic properties, such as high atomic number, large carrier mobility-lifetime product, high X-ray attenuation coefficient, and simple and low-cost synthesis process, and has gradually developed into the next-generation X-ray detection materials. Halide perovskite-based X-ray detectors can improve the sensitivity and reduce the detectable X-ray dose, which is applied in imaging, nondestructive industrial inspection, security screening, and scientific research. In this article, we introduce the fabrication methods of halide perovskite film and the classification and progress of halide perovskite-based X-ray detectors. Finally, the existing challenges are discussed, and the possible directions for future applications are explored. We hope this review can stimulate the further improvement of perovskite-based X-ray detectors.
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10

Kumar, Vineet, and Zhiping Luo. "A Review on X-ray Excited Emission Decay Dynamics in Inorganic Scintillator Materials." Photonics 8, no. 3 (March 4, 2021): 71. http://dx.doi.org/10.3390/photonics8030071.

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Scintillator materials convert high-energy radiation into photons in the ultraviolet to visible light region for radiation detection. In this review, advances in X-ray emission dynamics of inorganic scintillators are presented, including inorganic halides (alkali-metal halides, alkaline-earth halides, rare-earth halides, oxy-halides, rare-earth oxyorthosilicates, halide perovskites), oxides (binary oxides, complex oxides, post-transition metal oxides), sulfides, rare-earth doped scintillators, and organic-inorganic hybrid scintillators. The origin of scintillation is strongly correlated to the host material and dopants. Current models are presented describing the scintillation decay lifetime of inorganic materials, with the emphasis on the short-lived scintillation decay component. The whole charge generation and the de-excitation process are analyzed in general, and an essential role of the decay kinetics is the de-excitation process. We highlighted three decay mechanisms in cross luminescence emission, exitonic emission, and dopant-activated emission, respectively. Factors regulating the origin of different luminescence centers controlling the decay process are discussed.
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11

Seok, Sang Il, and Tzung-Fang Guo. "Halide perovskite materials and devices." MRS Bulletin 45, no. 6 (June 2020): 427–30. http://dx.doi.org/10.1557/mrs.2020.140.

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12

Nelson, David J., and Feliu Maseras. "Steric effects determine the mechanisms of reactions between bis(N-heterocyclic carbene)-nickel(0) complexes and aryl halides." Chemical Communications 54, no. 75 (2018): 10646–49. http://dx.doi.org/10.1039/c8cc06379f.

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13

Yu, Muxin, Caiping Liu, Shengchang Li, Yunfang Zhao, Jiangquan Lv, Zhu Zhuo, Feilong Jiang, Lian Chen, Yunlong Yu, and Maochun Hong. "Constructing multi-cluster copper(i) halides using conformationally flexible ligands." Chemical Communications 56, no. 53 (2020): 7233–36. http://dx.doi.org/10.1039/d0cc02472d.

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14

Wu, Jie, Shuai Zhang, Jun Yan, Bingsuo Zou, and Ruosheng Zeng. "A New Zero-Dimensional (CsK2)BiCl6 Metal Halide: Boosting Emission via B-Site Mn-Doping." Crystals 12, no. 11 (November 21, 2022): 1681. http://dx.doi.org/10.3390/cryst12111681.

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The A site of zero-dimensional (0D) metal halides A3BiCl6 can be replaced by Cs and/or K, thus, four possible 0D A3BiCl6 forms exist, such as (Cs2K)BiCl6, (CsK2)BiCl6, K3BiCl6 and Cs3BiCl6. It is well known that Cs3BiCl6 has been reported. We predict that both (Cs2K)BiCl6 and K3BiCl6 do not have enough structural and thermodynamic stability, but (CsK2)BiCl6 should be a 0D stable A3BiCl6 candidate based on density functional theory (DFT). Furthermore, 0D (CsK2)BiCl6 metal halide was experimentally prepared by the solvothermal method. Though (CsK2)BiCl6 metal halide exhibits an indirect bandgap and poor luminescence properties, the emission can be boosted by B-site Mn-doping due to the efficient energy transfer from self-trapped excitons (STE) to the d-state of Mn ions. Our results enrich the family of 0D bi-based metal halides and provide guidance for the regulation of the structural and optical properties of metal halides.
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15

Yang, Hai Jiao, Sheng Tao Zhang, and Lei Zhang. "Corrosion Behavior of Copper in Halide Solutions." Applied Mechanics and Materials 189 (July 2012): 36–39. http://dx.doi.org/10.4028/www.scientific.net/amm.189.36.

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The corrosion behavior of copper in halide solutions was investigated by cyclic voltammetry, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). On this basis, the mechanism of electrochemical corrosion behavior of Cu in halide solutions has been analyzed. The study explores the corrosive effect of the halide ions on copper materials and provides a theoretical basis for the inhibition of halide ions on the corrosion of copper materials.
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16

Zou, Shuangyang, Xiaoan Zhao, Wenze Ouyang, and Shenghua Xu. "Microfluidic Synthesis, Doping Strategy, and Optoelectronic Applications of Nanostructured Halide Perovskite Materials." Micromachines 13, no. 10 (September 30, 2022): 1647. http://dx.doi.org/10.3390/mi13101647.

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Halide perovskites are increasingly exploited as semiconducting materials in diverse optoelectronic applications, including light emitters, photodetectors, and solar cells. The halide perovskite can be easily processed in solution, making microfluidic synthesis possible. This review introduces perovskite nanostructures based on micron fluidic channels in chemical reactions. We also briefly discuss and summarize several advantages of microfluidics, recent progress of doping strategies, and optoelectronic applications of light-sensitive nanostructured perovskite materials. The perspective of microfluidic synthesis of halide perovskite on optoelectronic applications and possible challenges are presented.
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17

Suzum, Eiichi, Masaki Okamoto, and Yoshio Ono. "Catalysis by synthetic hydrotalcite-like materials in halide exchange between alkyl halides." Journal of Molecular Catalysis 61, no. 3 (September 1990): 283–94. http://dx.doi.org/10.1016/0304-5102(90)80003-2.

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18

Sacci, Robert L., Tyler H. Bennett, Kee Sung Han, Hong Fang, Puru Jena, Vijay Murugesan, and Jagjit Nanda. "How Halide Sub-Lattice Affects Li Ion Transport in Antiperovskites." ECS Meeting Abstracts MA2022-02, no. 4 (October 9, 2022): 467. http://dx.doi.org/10.1149/ma2022-024467mtgabs.

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Li-based antiperovskites (LiAP, Li3-x OH x X, X = Cl, Br) are an emergent class of Li-ion conductors that are potential candidates for electrolytes in all-solid-state batteries. As a material class, pLiAP shows vast compositional design freedom; however, the resulting properties are susceptible to synthesis and processing methodologies. For example, proton incorporation and halide mixing stabilize the perovskite cubic phase near room temperature, and halides mixtures near the eutectic points drive the solid-state reaction temperature down, allowing for faster synthesis and processing conditions (< 1 h). The mixed halogen compositions, such as Li2OHCl0.37Br0.63, also show a 30-fold improvement in room temperature ionic conductivity of a single halide structure, 1.5 x 10-6 vs. 4.9 x 10-8 S cm-1 (Li2OHCl). Despite the growing interest in these materials, important questions remain about LiAPs on the structure-property correlation upon halide substitution and the correlations between the OH/halide dynamics and the Li-ion transport. We thus attempted to deconvolute how proton dynamics and halide substitution enhance or impede ionic conduction in pLiAP at compositions near the halide salts' eutectic points. We combined infrared spectroscopy and nuclear magnetic resonance (NMR) with first-principles density functional theory (DFT) calculations to deconvolute halide mixing effects from local proton dynamics on Li-ion transport. The NMR results and ab initio molecular dynamics suggest that Li+ transport is more strongly correlated with halide dynamics. While the hydroxide does stabilize the highly conductive cubic structure, it limits correlative ionic transport and thus lowers Li+ conductivity. Experiment design, data analysis, and manuscript preparation (RLS) were supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Science and Engineering. Synthesis (THB and JN) were supported by Asst. Secretary, Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (VTO) through the Advanced Battery Materials Research (BMR) Program. P. J. acknowledges partial support by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under Award DE-FG02-96ER45579. H. F. was supported from U.S. Department of Energy (Award No. DE-EE0008865). This research used resources of the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. The NMR characterization part of the work is supported by the Joint Center for Energy Storage Research (JCESR), an Energy Innovation Hub funded by the U.S. Department of Energy, Office of Science, and Basic Energy Sciences. The NMR work was performed at the W. R. Wiley Environmental Molecular Sciences Laboratory, a DOE User Facility sponsored by the Office of Biological and Environmental Research, located at Pacific Northwest National Laboratory. Figure 1
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19

Diaz, Julio Cesar Camilo Albornoz, Eliana Navarro dos Santos Muccillo, and Reginaldo Muccillo. "Porous 8YSZ Ceramics Prepared with Alkali Halide Sacrificial Additives." Materials 16, no. 9 (May 3, 2023): 3509. http://dx.doi.org/10.3390/ma16093509.

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8 mol% Y2O3-stabilized ZrO2 (8YSZ) ceramics were prepared with KCl and LiF additions to obtain porous specimens with high skeletal density. Thermogravimetric and differential thermal analyses (TG/DTA) were carried out on 8YSZ and on 8YSZ mixed to 5 wt.% KCl or 5 wt.% LiF as sacrificial pore formers that were thermally removed during sintering. The melting and evaporation of the alkali halides were evaluated by differential thermal analysis. Dilatometric analysis was also carried out following the same TG/DTA temperature profile with results suggesting rearrangement of the 8YSZ particles during LiF and KCl melting. The dilatometric data of 8YSZ green pellets mixed to KCl or LiF exhibited an initial expansion up to the melting of the alkali halide, followed by shrinkage due to sintering evolution with grain growth and pore elimination. The time that the alkali halide molten phase was kept during sintering was found to be an important parameter for obtaining 8YSZ-sintered specimens with specific pore content; bulk density and open porosity could then be tuned by controlling the time the alkali halide remained liquid during sintering. Scanning electron microscopy images of the pellet fracture surfaces showed pores that contributed to increasing the electrical resistivity as evaluated by impedance spectroscopy analysis.
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20

Kanemitsu, Yoshihiko. "Halide perovskite nanocrystals: Unique luminescence materials." Journal of Luminescence 251 (November 2022): 119207. http://dx.doi.org/10.1016/j.jlumin.2022.119207.

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21

Hutter, Eline M. "Halide perovskite materials as chemical playground." Nachrichten aus der Chemie 70, no. 9 (August 2022): 68–69. http://dx.doi.org/10.1002/nadc.20224127355.

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22

Zhang, Lei, Mu He, and Shaofeng Shao. "Machine learning for halide perovskite materials." Nano Energy 78 (December 2020): 105380. http://dx.doi.org/10.1016/j.nanoen.2020.105380.

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23

Wang, Shaoli, Fan Yang, Jiangrui Zhu, Qinxuan Cao, Yangguang Zhong, Aocheng Wang, Wenna Du, and Xinfeng Liu. "Growth of metal halide perovskite materials." Science China Materials 63, no. 8 (June 3, 2020): 1438–63. http://dx.doi.org/10.1007/s40843-020-1300-2.

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24

Pandey, Rahul, Sakshi Sharma, Jaya Madan, and Rajnish Sharma. "Numerical simulations of 22% efficient all-perovskite tandem solar cell utilizing lead-free and low lead content halide perovskites." Journal of Micromechanics and Microengineering 32, no. 1 (December 1, 2021): 014004. http://dx.doi.org/10.1088/1361-6439/ac34a0.

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Abstract Lead-free or low lead content perovskite materials are explored in photovoltaic (PV) devices to mitigate the challenges of toxic lead-based halides. However, the conversion efficiency from such materials is far below compared to its counterparts. Therefore, to make a humble contribution in the development of lead-free or low lead content perovskite solar cells (PSCs) for future thin-film PV technology, a simulation study of tin (Sn) and Pb mixed halide (MAPb0.5Sn0.5I3, 1.22 eV) PSC is carried out in this manuscript. The device is further optimized in terms of transport layer and thickness variation to get 15.1% conversion efficiency. Moreover, the optimized narrow bandgap halide based device is further deployed in the monolithic tandem configuration with lead-free wide bandgap (1.82 eV) halide, i.e. Cs2AgBi0.75Sb0.25Br6, 1.82 eV (WBH) PSC, to mitigate the thermalization as well as transparent E g losses. Filtered spectrum, current matching, and construction of tandem J–V curve at the current matching point are utilized to design the tandem solar cell under consideration. Tandem device delivered short current density, J SC (15.21 mA cm−2), open-circuit voltage, V OC (1.95 V), fill factor, FF (74.09%) and power conversion efficiency, PCE (21.97%). The performance of the devices considered in this work is found to be in good approximation with experimental work.
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25

Zhan, Xiaowen, Minyuan M. Li, J. Mark Weller, Vincent L. Sprenkle, and Guosheng Li. "Recent Progress in Cathode Materials for Sodium-Metal Halide Batteries." Materials 14, no. 12 (June 12, 2021): 3260. http://dx.doi.org/10.3390/ma14123260.

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Transitioning from fossil fuels to renewable energy sources is a critical goal to address greenhouse gas emissions and climate change. Major improvements have made wind and solar power increasingly cost-competitive with fossil fuels. However, the inherent intermittency of renewable power sources motivates pairing these resources with energy storage. Electrochemical energy storage in batteries is widely used in many fields and increasingly for grid-level storage, but current battery technologies still fall short of performance, safety, and cost. This review focuses on sodium metal halide (Na-MH) batteries, such as the well-known Na-NiCl2 battery, as a promising solution to safe and economical grid-level energy storage. Important features of conventional Na-MH batteries are discussed, and recent literature on the development of intermediate-temperature, low-cost cathodes for Na-MH batteries is highlighted. By employing lower cost metal halides (e.g., FeCl2, and ZnCl2, etc.) in the cathode and operating at lower temperatures (e.g., 190 °C vs. 280 °C), new Na-MH batteries have the potential to offer comparable performance at much lower overall costs, providing an exciting alternative technology to enable widespread adoption of renewables-plus-storage for the grid.
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26

Eaton, Samuel W., Minliang Lai, Natalie A. Gibson, Andrew B. Wong, Letian Dou, Jie Ma, Lin-Wang Wang, Stephen R. Leone, and Peidong Yang. "Lasing in robust cesium lead halide perovskite nanowires." Proceedings of the National Academy of Sciences 113, no. 8 (February 9, 2016): 1993–98. http://dx.doi.org/10.1073/pnas.1600789113.

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The rapidly growing field of nanoscale lasers can be advanced through the discovery of new, tunable light sources. The emission wavelength tunability demonstrated in perovskite materials is an attractive property for nanoscale lasers. Whereas organic–inorganic lead halide perovskite materials are known for their instability, cesium lead halides offer a robust alternative without sacrificing emission tunability or ease of synthesis. Here, we report the low-temperature, solution-phase growth of cesium lead halide nanowires exhibiting low-threshold lasing and high stability. The as-grown nanowires are single crystalline with well-formed facets, and act as high-quality laser cavities. The nanowires display excellent stability while stored and handled under ambient conditions over the course of weeks. Upon optical excitation, Fabry–Pérot lasing occurs in CsPbBr3 nanowires with an onset of 5 μJ cm−2 with the nanowire cavity displaying a maximum quality factor of 1,009 ± 5. Lasing under constant, pulsed excitation can be maintained for over 1 h, the equivalent of 109 excitation cycles, and lasing persists upon exposure to ambient atmosphere. Wavelength tunability in the green and blue regions of the spectrum in conjunction with excellent stability makes these nanowire lasers attractive for device fabrication.
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27

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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Анотація:
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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28

Moynihan, Cornelius T. "Halide Glasses." MRS Bulletin 12, no. 5 (August 1987): 40–44. http://dx.doi.org/10.1557/s0883769400067506.

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The term “halide glass” refers to glasses in which the anions are from elements in Group VIIA of the periodic table, namely, F, Cl, Br and I, as opposed, for example, to “oxide glasses,” such as silicates, borates, phosphates, etc. Two known single component halide melts are glassforming, BeF2 and ZnCl2, but the majority of halide glasses are multicomponent. Practical interest in halide glasses has been generated almost entirely by their optical properties, which cannot be duplicated in a more conventional oxide glass. Barriers to the practical deployment of halide glasses have their origin in materials properties in which they can be markedly inferior to oxide glasses, e.g., mechanical strength, resistance of the melt to crystallization, chemical durability, etc.In the past decade there has been considerable and accelerating research activity in the area of halide glass science and engineering. Halide glass research up to 1980 has been reviewed by Baldwin et al. and oxide and halide glasses for laser applications have been compared by Weber. Four international symposia on halide glass science and engineering have been held in the period 1982–1987, the proceedings of the last two of which have been or will be shortly published. The proceedings of a 1986 NATO-sponsored meeting on halide glasses have also been published in book form.
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29

TANI, Tadaaki. "Role of Surface of Silver Halide Grains in Silver Halide Photographic Materials." Hyomen Kagaku 14, no. 3 (1993): 177–83. http://dx.doi.org/10.1380/jsssj.14.177.

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30

Makarov, Sergey, Aleksandra Furasova, Ekaterina Tiguntseva, Andreas Hemmetter, Alexander Berestennikov, Anatoly Pushkarev, Anvar Zakhidov, and Yuri Kivshar. "Halide-Perovskite Nanophotonics: Halide-Perovskite Resonant Nanophotonics (Advanced Optical Materials 1/2019)." Advanced Optical Materials 7, no. 1 (January 2019): 1970002. http://dx.doi.org/10.1002/adom.201970002.

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31

Cheng, Dan, Zhaohai Yang, and Yilan Liang. "Preparation and Energy Storage Performance of Perovskite Luminescent Materials by an Electrochemiluminescence Method." Adsorption Science & Technology 2022 (October 3, 2022): 1–10. http://dx.doi.org/10.1155/2022/3092941.

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In recent years, metal halide perovskites have become attractive photosensitive materials due to their excellent optoelectronic properties. Due to its good characteristics, perovskites are used in solar photovoltaic power generation, light-emitting diodes, photodetectors, photocatalysis, and sensors and many other fields. Considering the wide application of perovskites and the study of potential bifunctional devices, the application of perovskites in energy storage devices is relatively small, and a small number of studies focus on organic-inorganic hybrid lead-halide perovskites. However, the related energy storage research on all-inorganic lead-halide perovskites with better stability, which has also been widely concerned, is very scarce. And nontoxic all-inorganic nonperovskite has zero research in energy storage. Based on the above situation, this paper selects the lead-free perovskite Cs2AgSbCl6, and two lead halide perovskites with different dimensions, -0-dimensional Cs4PbBr6 and 3-dimensional CsPbBr3, these three all-inorganic perovskites. It was for electrochemical performance testing.
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32

Dou, Letian, Minliang Lai, Christopher S. Kley, Yiming Yang, Connor G. Bischak, Dandan Zhang, Samuel W. Eaton, Naomi S. Ginsberg, and Peidong Yang. "Spatially resolved multicolor CsPbX3 nanowire heterojunctions via anion exchange." Proceedings of the National Academy of Sciences 114, no. 28 (June 26, 2017): 7216–21. http://dx.doi.org/10.1073/pnas.1703860114.

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Halide perovskites are promising semiconductor materials for solution-processed optoelectronic devices. Their strong ionic bonding nature results in highly dynamic crystal lattices, inherently allowing rapid ion exchange at the solid–vapor and solid–liquid interface. Here, we show that the anion-exchange chemistry can be precisely controlled in single-crystalline halide perovskite nanomaterials when combined with nanofabrication techniques. We demonstrate spatially resolved multicolor CsPbX3 (X = Cl, Br, I, or alloy of two halides) nanowire heterojunctions with a pixel size down to 500 nm with the photoluminescence tunable over the entire visible spectrum. In addition, the heterojunctions show distinct electronic states across the interface, as revealed by Kelvin probe force microscopy. These perovskite heterojunctions represent key building blocks for high-resolution multicolor displays beyond current state-of-the-art technology as well as high-density diode/transistor arrays.
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33

Sunatkari, A. L., S. S. Talwatkar, and Harsha M. Sonawane. "A Recent Development of Luminescence Properties of Yb3+ Doped Metal Halide Perovskites Nanocrystals for Photonic Applications: A Review." Journal of Physics: Conference Series 2426, no. 1 (February 1, 2023): 012010. http://dx.doi.org/10.1088/1742-6596/2426/1/012010.

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Abstract Yb3+ doped metal halide perovskites nanocrystals have received a lot of interest recently as cutting-edge materials for solar applications because of their excellent carrier mobility, extremely long carrier diffusion lengths, and acceptable optical band gaps. The remarkable features of Yb 3+ doped metal halide perovskites also make them useful in a wide range of applications, including light-emitting diodes, lasers, X-ray detectors, memory devices, and more. Here, the unique characteristics of the various Yb 3+ doped metal halide perovskites materials are discussed along with their luminescence properties to show why these materials are so intriguing for a variety of applications. We outline recent advances in halide perovskites uses outside of photovoltaic and offer suggestions.
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34

Lu, Yangbin, Kang Qu, Tao Zhang, Qingquan He, and Jun Pan. "Metal Halide Perovskite Nanowires: Controllable Synthesis, Mechanism, and Application in Optoelectronic Devices." Nanomaterials 13, no. 3 (January 19, 2023): 419. http://dx.doi.org/10.3390/nano13030419.

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Metal halide perovskites are promising energy materials because of their high absorption coefficients, long carrier lifetimes, strong photoluminescence, and low cost. Low-dimensional halide perovskites, especially one-dimensional (1D) halide perovskite nanowires (NWs), have become a hot research topic in optoelectronics owing to their excellent optoelectronic properties. Herein, we review the synthetic strategies and mechanisms of halide perovskite NWs in recent years, such as hot injection, vapor phase growth, selfassembly, and solvothermal synthesis. Furthermore, we summarize their applications in optoelectronics, including lasers, photodetectors, and solar cells. Finally, we propose possible perspectives for the development of halide perovskite NWs.
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35

Dell’Amico, Daniela Belli, Fausto Calderazzo, and Guido Pampaloni. "Heavier halides of transition metals by halide exchange." Inorganica Chimica Acta 361, no. 11 (July 2008): 2997–3003. http://dx.doi.org/10.1016/j.ica.2008.01.015.

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36

Reckeweg, Olaf, and Thomas Schleid. "No solid solution compounds in between the binaries: syntheses and crystal structures of Nb(Br0.62(4)Cl0.38(4))2Cl2 and NbI2Cl2." Zeitschrift für Naturforschung B 73, no. 1 (January 26, 2018): 29–34. http://dx.doi.org/10.1515/znb-2017-0188.

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AbstractThe anion-mixed niobium tetrahalides Nb(Br0.62(4)Cl0.38(4))2Cl2 and NbI2Cl2 were obtained by heating NbBr5 with NbCl5 and NbI5 with NbCl5, respectively, in equimolar ratios with niobium metal in evacuated, torch-sealed silica ampoules at 720 K for 3 days. The orthorhombic title compounds form as very brittle black needles and were characterized by single-crystal X-ray diffraction [space group: Immm, Z=4; a=704.27(6), b=824.13(7), c=929.64(8) pm for Nb(Br0.62(4)Cl0.38(4))2Cl2 and a=753.76(6), b=829.38(7) and c=983.41(8) pm for NbI2Cl2]. Surprisingly enough, these mixed-anionic halides are not isostructural with either NbCl4, NbBr4 or NbI4, but crystallize isotypically with TaI2Cl2, thus being examples for differential site occupancy stabilized materials. Structural features of other niobium(IV) halides are compiled and compared to those of Nb(Br0.62(4)Cl0.38(4))2Cl2 and NbI2Cl2. Except for NbF4, they all exhibit chains of trans-edge connected [NbX6]2− octahedra, which allow Peierls distortions to form Nb–Nb single bonds. The packing of these chains differ, however, depending on the actual halide or mixed-halide combination.
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37

Era, Masanao, Yumeko Komatsu, and Naotaka Sakamoto. "Enhancement of Exciton Emission in Lead Halide-Based Layered Perovskites by Cation Mixing." Journal of Nanoscience and Nanotechnology 16, no. 4 (April 1, 2016): 3338–42. http://dx.doi.org/10.1166/jnn.2016.12295.

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Spin-coated films of a lead halide, PbX: X = I and Br, layered perovskites having cyclohexenylethyl ammonium molecule as an organic layer, which were mixed with other metal halide-based layered perovskites consisting of various divalent metal halides (for example, CaI2, CdI2, FeI2, SnBr2 and so on), were prepared. The results of X-ray diffraction measurements exhibited that solid solution formation between PbX-based layered perovskite and other divalent metal halide-based layered perovskites was observed up to very high molar concentration of 50 molar% in the mixed film samples when divalent cations having ionic radius close to that of Pb2+ were employed. In the solid solution films, the exciton emission was much enhanced at room temperature. Exciton emission intensity of PbI-based layered perovskite mixed with CaI-based layered perovskite (20 molar%) is about 5 times large that of the pristine PbI-based layered perovskite, and that of PbBr-based layered perovskite mixed with SnBr-based layered perovskite (20 molar%) was also about 5 times large that of the pristine PbBr-based layered perovskite at room temperature.
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38

Adnan, Muhammad, Zobia Irshad, and Jae Kwan Lee. "Facile all-dip-coating deposition of highly efficient (CH3)3NPbI3−xClx perovskite materials from aqueous non-halide lead precursor." RSC Advances 10, no. 48 (2020): 29010–17. http://dx.doi.org/10.1039/d0ra06074g.

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Sequential all-dip-coating processed perovskite materials was conducted in an aqueous non-halide lead precursor solution, which was followed by that in a mixed halide solution for high-efficiency perovskite solar cells.
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39

Filippetti, A., P. Wadhwa, C. Caddeo, and A. Mattoni. "A promising outlook on the development of lead halide perovskites as spin-orbitronic materials." Applied Physics Letters 121, no. 20 (November 14, 2022): 200501. http://dx.doi.org/10.1063/5.0107903.

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Hybrid lead halide perovskites have progressively overcome the horizon of materials for novel, highly efficient solar cells and are now proposed for a variety of optoelectronic, nanoelectronic, and thermoelectric applications. In this Perspective, we focus on a still scarcely explored and yet extremely thrilling playground: the use of lead halide perovskites to design efficient magneto-electronic and magneto-optic applications. Our analysis is pointed to emphasize the unique combination of strong spin–orbit coupling and wide structural and chemical flexibility, which characterize the lead halide perovskites. Using model calculations, we furnish a qualitative evidence of their capabilities for what concerns the charge–spin conversion mechanism, which is basic to some of the most visionary spin-orbitronic implementations, such as the magnetoelectric switching and the spin-diffusive transistor.
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40

Kirovskaya, I. A., L. V. Novgorodtseva, E. P. Surovoi, A. V. Yureva, V. E. Surovaya, L. V. Kolesnikov, V. B. Goncharov, and O. V. Kropotin. "Copper halide-based semiconductor materials. Adsorption properties." Omsk Scientific Bulletin, no. 165 (2019): 61–65. http://dx.doi.org/10.25206/1813-8225-2019-165-61-65.

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41

Hu, Sile, Zhilin Ren, Aleksandra B. Djurišić, and Andrey L. Rogach. "Metal Halide Perovskites as Emerging Thermoelectric Materials." ACS Energy Letters 6, no. 11 (October 13, 2021): 3882–905. http://dx.doi.org/10.1021/acsenergylett.1c02015.

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42

Hu, Sile, Zhilin Ren, Aleksandra B. Djurišić, and Andrey L. Rogach. "Metal Halide Perovskites as Emerging Thermoelectric Materials." ACS Energy Letters 6, no. 11 (October 13, 2021): 3882–905. http://dx.doi.org/10.1021/acsenergylett.1c02015.

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43

Giraldo, L. M. "Obtaining relief structures in silver halide materials." Optica Pura y Aplicada 46, no. 4 (December 3, 2013): 363–68. http://dx.doi.org/10.7149/opa.46.4.363.

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44

Zhang, Cuiling, Gowri Manohari Arumugam, Chong Liu, Jinlong Hu, Yuzhao Yang, Ruud E. I. Schropp, and Yaohua Mai. "Inorganic halide perovskite materials and solar cells." APL Materials 7, no. 12 (December 1, 2019): 120702. http://dx.doi.org/10.1063/1.5117306.

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45

Tang, Jiang, and Dehui Li. "Halide perovskites: from materials to optoelectronic devices." Frontiers of Optoelectronics 13, no. 3 (September 2020): 191–92. http://dx.doi.org/10.1007/s12200-020-1092-1.

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46

Cheng, Chuantong, Cheng Zhu, Beiju Huang, Huan Zhang, Hengjie Zhang, Run Chen, Weihua Pei, Qi Chen, and Hongda Chen. "Processing Halide Perovskite Materials with Semiconductor Technology." Advanced Materials Technologies 4, no. 7 (April 2019): 1800729. http://dx.doi.org/10.1002/admt.201800729.

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47

Zhao, Lianfeng, and Barry P. Rand. "Metal-Halide Perovskites: Emerging Light-Emitting Materials." Information Display 34, no. 6 (November 2018): 18–22. http://dx.doi.org/10.1002/j.2637-496x.2018.tb01134.x.

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48

Zhang, Lei, Juhong Miao, Jingfa Li, and Qingfang Li. "Halide Perovskite Materials for Energy Storage Applications." Advanced Functional Materials 30, no. 40 (August 9, 2020): 2003653. http://dx.doi.org/10.1002/adfm.202003653.

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49

Pham, Hong Duc, Li Xianqiang, Wenhui Li, Sergei Manzhos, Aung Ko Ko Kyaw, and Prashant Sonar. "Organic interfacial materials for perovskite-based optoelectronic devices." Energy & Environmental Science 12, no. 4 (2019): 1177–209. http://dx.doi.org/10.1039/c8ee02744g.

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50

Dong, Haiyun, Chunhuan Zhang, Xiaolong Liu, Jiannian Yao, and Yong Sheng Zhao. "Materials chemistry and engineering in metal halide perovskite lasers." Chemical Society Reviews 49, no. 3 (2020): 951–82. http://dx.doi.org/10.1039/c9cs00598f.

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