x-ray based in situ investigation of silicon growth mechanism dynamics—application to grain

ChemElectroChem: Vol 1, No 1

2014/1/1A dynamic catalyst: DFT‐based calculations along with in situ X‐ray absorption spectroscopy data show that AuPd alloys form unique potential‐controlled surface structures during hydrogen adsorption/evolution. Surface segregations take place,

Polymerization Reaction Measuring

Dow researchers have developed an alternate means of producing silicone, based on a precisely controlled polymerization, to yield product with targeted, uniform chain lengths. In this synthesis, a lithium-based reactant serves to open a cyclic tri-siloxane ring, followed by addition of another cyclic siloxane reagent, to yield a monodispersed silicone polymer.

In Situ Investigation of the Silicon Carbide Particles

The synchrotron radiation X-ray passed through samples and reached an X-ray CCD detector, which recorded the intensity message of X-ray. The CCD including a 1300 1030 pixels chip with a unit pixel of 10.9 10.9 um 2 offered an 8-bit dynamic range.

Frontiers

Lithium-ion batteries (LIBs), used for energy supply and storage equipment, have been widely applied in consumer electronics, electric vehicles, and energy storage systems. However, the urgent demand for high energy density batteries and the shortage of lithium resources is driving scientists to develop high-performance materials and find alternatives. Low-volume expansion carbon material is

FZ and CZ crystal growth: Cost driving factors and new

In the field of monosilicon crystal growth, the Czochralski (CZ) as well as the floating zone (FZ) method have grown to a mature technology over the last 60 years and, until today, the costs have been continuously reduced. The cost driving factors for CZ and FZ are

Polymerization Reaction Measuring

Dow researchers have developed an alternate means of producing silicone, based on a precisely controlled polymerization, to yield product with targeted, uniform chain lengths. In this synthesis, a lithium-based reactant serves to open a cyclic tri-siloxane ring, followed by addition of another cyclic siloxane reagent, to yield a monodispersed silicone polymer.

Grain growth from amorphous phase: AIP Advances: Vol

Time dependence of the grain growth in phosphorus doped silicon thin films deposited in situ at 530 C was investigated. The samples were annealed at 950 C in different time intervals. The theories, which give the t n time dependent increase of grain size, cannot fit the observed data.

Grain growth from amorphous phase: AIP Advances: Vol

Time dependence of the grain growth in phosphorus doped silicon thin films deposited in situ at 530 C was investigated. The samples were annealed at 950 C in different time intervals. The theories, which give the t n time dependent increase of grain size, cannot fit the observed data.

Metallurgical and Materials Transactions A

2021/4/26Investigation into Competitive Mechanism of Carbon Partitioning and Pseudospinodal Decomposition of Supersaturated Martensite in QP Steel Containing High Silicon Authors (first, second and last of 5) Hao Du Yu Gong Xuejun Jin Content type: Published: 31

In Situ Investigation of Chemomechanical Effects in

This mechanism is likely the manifestation of the interfacial pitting mechanism observed with the in situ TEM. In this way, TEM provides needed nanoscale interfacial chemistry information and XCT serves to complement it by examining real pelletized samples so that we can observe the individual failure mechanisms from each technique as well as how these mechanisms cascade into each other.

Grain growth from amorphous phase: AIP Advances: Vol

Time dependence of the grain growth in phosphorus doped silicon thin films deposited in situ at 530 C was investigated. The samples were annealed at 950 C in different time intervals. The theories, which give the t n time dependent increase of grain size, cannot fit the observed data.

Crystal nucleation in metallic alloys using x

In situ imaging of solidification Figure 1A shows the normalized crystal density as a function of time measured directly from radiographs for the Al-5Ti-1B grain-refined Al-Cu alloys with 10, 15, 20, and 25 weight % (wt %) Cu and represents the raw output of the computer vision algorithm based on typical images such as those shown in Fig. 1 (B to D).

Liquid cell transmission electron microscopy and its

These in situ experiments allow us to better understand and model growth mechanisms within different environments, which is useful to grow, stabilize and manipulate different nanostructures. For example, Zečević et al. [ 108 ] showed that under STEM, the narrowly focused electron beam probe can elongate silica nanoparticles.

SnOx Atomic Layer Deposition on Bare Perovskite—An

High-end organic–inorganic lead halide perovskite semitransparent p–i–n solar cells for tandem applications use a phenyl-C61-butyric acid methyl ester (PCBM)/atomic layer deposition (ALD)-SnOx electron transport layer stack. Omitting the PCBM would be preferred for manufacturing, but has in previous studies on (FA,MA)Pb(Br,I)3 and (Cs,FA)Pb(Br,I)3 and in this study on Cs0.05FA0.79MA0

Synchrotron X‐ray computed microtomography study on

In‐situ synchrotron X‐ray computed microtomography with sub‐micrometer voxel size was used to study the decomposition of gas hydrates in a sedimentary matrix. Xenon‐hydrate was used instead of methane hydrate to enhance the absorption contrast. The

Atomistic and dynamic structural characterizations in

Along with the booming applications of in situ TEM techniques, a systematic clarification of the related works is required for better understanding and usage of this method. Therefore, many reviews have been reported. For example, Wang et al. [] provided an overview of recent progress concerning the mechanical properties and experimental techniques for in situ mechanical testing at atomic

Liquid cell transmission electron microscopy and its

These in situ experiments allow us to better understand and model growth mechanisms within different environments, which is useful to grow, stabilize and manipulate different nanostructures. For example, Zečević et al. [ 108 ] showed that under STEM, the narrowly focused electron beam probe can elongate silica nanoparticles.

In situ damage assessment using synchrotron X

To investigate the in situ failure of grains of sand under dynamic compression loading, we placed two Ottawa sand particles of nominal diameter 0.6 mm in a custom made aluminium sample holder and loaded in compression using a 0.6 mm diameter steel gauge

In situ damage assessment using synchrotron X

To investigate the in situ failure of grains of sand under dynamic compression loading, we placed two Ottawa sand particles of nominal diameter 0.6 mm in a custom made aluminium sample holder and loaded in compression using a 0.6 mm diameter steel gauge

X

crystals Review X-ray Based in Situ Investigation of Silicon Growth Mechanism Dynamics—Application to Grain and Defect Formation Hadjer Ouaddah 1, Maike Becker 1, Thcle Riberi-Bridot 1, Maria Tsoutsouva 1, Vasiliki Stamelou 1, Gabrielle Regula 1, Guillaume Reinhart 1, Isabelle Prichaud 1,

Recent Progress in Synthesis and Application of Low

Silicon is regarded as the next generation anode material for LIBs with its ultra-high theoretical capacity and abundance. Nevertheless, the severe capacity degradation resulting from the huge volume change and accumulative solid-electrolyte interphase (SEI) formation hinders the silicon based anode material for further practical applications. Hence, a variety of methods have been applied to

In situ heating SEM observation of the bainitic

Dynamic in situ observation of a martensitic transformation in the same alloy was also performed to compare the growth mode with that of bainite, and it was found that the behavior is considerably different between bainitic and the martensitic transformations.

Role of Impurities in Silicon Solidification and Electrical

Role of Impurities in Silicon Solidification and Electrical Properties Studied by Complementary In Situ and Ex Situ Methods Hadjer Ouaddah Aix Marseille University, Universit de Toulon, CNRS, IM2NP, Campus de Saint Jrme, Case 142, 13397 Marseille Cedex 20, France

Hot Topic: Batteries and Supercapacitors: Batteries

2021/5/1A XAS story: In situ synchrotron X‐ray absorption spectroscopy (XAS) probes dynamic electronic and local atomic structure information of selected elements of matter during battery operation, which can help build better batteries by understanding the reaction mechanism

In situ diagnostics of the crystal

2016/6/1Since γ- and X-ray scintillators are built to efficiently absorb high-energy photons, the conventional X- and γ-ray interrogation techniques cannot be easily implemented for in situ studies. Moreover, the furnace structures required for synthesis, often

ChemElectroChem: Vol 1, No 1

2014/1/1A dynamic catalyst: DFT‐based calculations along with in situ X‐ray absorption spectroscopy data show that AuPd alloys form unique potential‐controlled surface structures during hydrogen adsorption/evolution. Surface segregations take place,

Crystals

To control the final grain structure and the density of structural crystalline defects in silicon (Si) ingots is still a main issue for Si used in photovoltaic solar cells. It concerns both innovative and conventional fabrication processes. Due to the dynamic essence of the phenomena and to the coupling of mechanisms at different scales, the post-mortem study of the solidified ingots gives

Synchrotron X‐ray computed microtomography study on

In‐situ synchrotron X‐ray computed microtomography with sub‐micrometer voxel size was used to study the decomposition of gas hydrates in a sedimentary matrix. Xenon‐hydrate was used instead of methane hydrate to enhance the absorption contrast. The

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