Minerals

Wenk, Hans‐Rudolf; Bulakh, Andrei

doi:10.1017/9781316226889

Cited by 48 publications

(12 citation statements)

References 227 publications

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“…Hybrid organic–inorganic perovskites (HOIPs) are similar to inorganic perovskites in terms of their ABX 3 topology, although the combination of organic and inorganic components provides for greater compositional flexibility . In common perovskites, A and B are cations, and X is an anion that is coordinated to B. The A atoms are normally larger than the B atoms, and the B cation is sixfold coordinated with the X atoms to form BX 6 octahedron (Figure ).…”

Section: Electric Magneto-optical Properties In Multifunctional Hybri...mentioning

confidence: 99%

Viewpoint: Atomic-Scale Design Protocols toward Energy, Electronic, Catalysis, and Sensing Applications

et al. 2019

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Nanostructured materials are essential building blocks for the fabrication of new devices for energy harvesting/storage, sensing, catalysis, magnetic, and optoelectronic applications. However, because of the increase of technological needs, it is essential to identify new functional materials and improve the properties of existing ones. The objective of this Viewpoint is to examine the state of the art of atomic-scale simulative and experimental protocols aimed to the design of novel functional nanostructured materials, and to present new perspectives in the relative fields. This is the result of the debates of Symposium I “Atomic-scale design protocols towards energy, electronic, catalysis, and sensing applications”, which took place within the 2018 European Materials Research Society fall meeting.

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Section: Electric Magneto-optical Properties In Multifunctional Hybri...mentioning

confidence: 99%

Viewpoint: Atomic-Scale Design Protocols toward Energy, Electronic, Catalysis, and Sensing Applications

et al. 2019

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“…Perovskite is originally the mineral name of calcium titanate (CaTiO 3 ), which is often applied to the class of materials possessing the same type of crystal structure as CaTiO 3 . In the perovskite structure with the chemical formula, ABX 3 , the A-site cation is coordinated to 12 X anions, forming a cuboctahedron, while the 6-fold-coordinated B-site cation has an octahedral geometry.…”

Section: Introductionmentioning

confidence: 99%

“…In Figure , the chronological progress in the PCE of PSCs is displayed. Noncertified PCE values are collected from the literature, − and the certified data are collected from “solar cell efficiency tables” reported in Progress in Photovoltaics . − By examining the PCE data in Figure a, it can be observed that the PCE increases steeply between number 3 and number 11, indicating that this big jump occurred in only three years, from 2012 to 2014. Most of the achievements are based on a mesoscopic structure containing mesoporous TiO 2 layers (see the mesoscopic-filled device structure in Figure b).…”

Section: Introductionmentioning

confidence: 99%

High-Efficiency Perovskite Solar Cells

et al. 2020

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With rapid progress in a power conversion efficiency (PCE) to reach 25%, metal halide perovskite-based solar cells became a game-changer in a photovoltaic performance race. Triggered by the development of the solid-state perovskite solar cell in 2012, intense follow-up research works on structure design, materials chemistry, process engineering, and device physics have contributed to the revolutionary evolution of the solidstate perovskite solar cell to be a strong candidate for a next-generation solar energy harvester. The high efficiency in combination with the low cost of materials and processes are the selling points of this cell over commercial silicon or other organic and inorganic solar cells. The characteristic features of perovskite materials may enable further advancement of the PCE beyond those afforded by the silicon solar cells, toward the Shockley−Queisser limit. This review summarizes the fundamentals behind the optoelectronic properties of perovskite materials, as well as the important approaches to fabricating high-efficiency perovskite solar cells. Furthermore, possible next-generation strategies for enhancing the PCE over the Shockley−Queisser limit are discussed.

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“…In natural, wollastonite-producing decarbonation systems, silica is sometimes introduced to a carbonate deposit by hot, silicate-bearing fluids typically associated with local or regional igneous intrusions (Blatt et al, 2006b;Wenk & Bulakh, 2016). As a pragmatic analog in the laboratory, we chose to intercalate samples with a suspension of colloidal silica (silica nanoparticles within average diameter of 30 nm) using water as the carrier medium.…”

Section: Silica Saturationmentioning

confidence: 99%

Elastic Softening of Limestone Upon Decarbonation With Episodic CO₂ Release

2018

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Reactive transport under confining stress through porous media leads to complex, coupled feedback mechanisms between chemical and physical alteration. We exposed four intact limestone cores to hydrothermal conditions conducive to the wollastonite‐producing decarbonation reaction. We allowed for the episodic release of pore pressure to mimic pulsing flow in crustal systems and mitigate the accumulation of carbon dioxide (CO2). Energy‐dispersive X‐ray spectroscopy results show that all four reacted samples developed a new calc‐silicate phase during the reaction. Alteration from the fluid‐mediated reaction was pervasive but nonuniform, resulting in the development of a small volume of highly compliant pore space with grain contact softening. Lower initial velocity sensitivity to confining pressure and higher initial pore connectivity lead to more development of soft porosity. The relevance of the results lies in enhancing seismic monitoring capabilities of potentially seismogenic areas—large decreases in observed seismic velocity in limestone undergoing decarbonation can only be accounted for if the nonnegligible change in the elastic properties of the rock frame are understood. Since the potential for seismicity of a subsurface system depends both on the elastic stiffness and stress state of the rocks, rocks undergoing reactive transport cannot be modeled as though their elastic moduli are time independent. Accurate modeling of the subsurface behavior depends on understanding not just the particular rock reactions taking place but also the initial pore network and velocity sensitivity to confining pressure of those rocks, and how the elastic properties of that rock evolve.

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Minerals

Cited by 48 publications

References 227 publications

Viewpoint: Atomic-Scale Design Protocols toward Energy, Electronic, Catalysis, and Sensing Applications

Viewpoint: Atomic-Scale Design Protocols toward Energy, Electronic, Catalysis, and Sensing Applications

High-Efficiency Perovskite Solar Cells

Elastic Softening of Limestone Upon Decarbonation With Episodic CO₂ Release

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Minerals

Cited by 48 publications

References 227 publications

Viewpoint: Atomic-Scale Design Protocols toward Energy, Electronic, Catalysis, and Sensing Applications

Viewpoint: Atomic-Scale Design Protocols toward Energy, Electronic, Catalysis, and Sensing Applications

High-Efficiency Perovskite Solar Cells

Elastic Softening of Limestone Upon Decarbonation With Episodic CO2 Release

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Elastic Softening of Limestone Upon Decarbonation With Episodic CO₂ Release