Articles tagged with Crystal Growth
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A team of researchers from Korea investigated the dynamics of the p-Laplacian AC equation, finding that solutions maintain three criteria: phase separation, boundedness, and energy decay properties. They also identified an advantage of p-AC equation over classical Laplacian in adjusting interface sharpness.
Researchers at UNIST have developed a method to synthesize single-crystalline graphite films of up to inch scale, overcoming the critical issue of small size due to weak interaction between layers. The resulting films exhibit exceptional thermal conductivity and uniform quality.
Researchers developed an isothermal chemical vapor transport (ICVT) method for growing high-quality monocrystals without temperature gradients. This technique simplifies the growth process and produces crystals with excellent crystallographic quality.
A team of researchers from NIST, UW-Madison, and Argonne National Laboratory identified key compositions that enable consistent 3D-printing of 17-4 PH stainless steel with favorable properties. The new findings could help producers cut costs and increase manufacturing flexibility.
Researchers from the Institute of Industrial Science, The University of Tokyo, found that preordering significantly influences crystal growth and nucleation. Their study proposes modifications to address shortcomings in classical nucleation theory.
Researchers at Ural Federal University developed a mathematical model explaining anomalous behavior in melts, which can lead to creating materials with specific properties. The model accounts for nucleation and crystal growth, reducing supercooling and narrowing the two-phase layer.
Researchers from Tokyo Metropolitan University uncover the rapid growth of ultra-thin nanowires or 'whiskers' in organic compounds by following gas bubbles. They find that adding impurities can suppress bubble formation, allowing for controlled whisker-free growth and uniform crystalline material.
Researchers have successfully visualized crystal nucleation, a crucial stage in crystallization, using Raman microspectroscopy and optical trapping. This breakthrough enables better understanding of molecular dynamics and may lead to the development of purer and more stable crystals for pharmaceuticals and other industries.
The Rice University lab has improved the recipe for synthesizing molybdenum disulfide (MoS2), a highly sought-after material for its semiconducting properties. By using iodized salt, the team was able to speed up the synthesis process while reducing growth temperatures.
Researchers successfully grow high-quality single-crystal graphene sheets on insulating supports using a copper-catalyzed decomposition method. The resulting graphene exhibits excellent electronic performance due to its high crystallinity and minimal surface folds.
Researchers at Ural Federal University have developed a method to significantly accelerate the synthesis of aluminum-based alloys using computer modeling. The new approach allows for control over the internal structure and physical properties of the alloy, enabling the creation of materials with desired characteristics.
Scientists have discovered a novel way to prevent the formation of ice crystals in ice cream by adding cellulose nanocrystals. The additive, which is more effective than current stabilizers, works by stopping the growth of ice crystals and slowing down their recrystallization process.
Scientists at Vienna University of Technology have successfully integrated large surface areas of graphene into limited volumes by producing it on complex branched nanostructures. This breakthrough enables increased storage capacity for hydrogen and higher sensitivity in chemical sensors.
Researchers from The University of Tokyo Institute of Industrial Science used computer simulations to study the aging mechanism that can cause an amorphous glassy material to turn into a crystal. By removing tiny irregularities in local densities, they found that it prevents atomic avalanches that trigger ordered structure formation.
Researchers develop new epitaxial growth mechanism to achieve large-scale single-crystal WS2 monolayers, overcoming a crucial hurdle in replacing silicon with 2D materials. The technique enables uniform alignment of small crystals and leads to the successful growth of wafer-scale single-crystals of WS2, MoS2, WSe2, and MoSe2.
Borophene, a 2D version of boron, can be synthesized on hexagonal boron nitride using weak van der Waals forces. This method allows for easier removal and evaluation of the material for its plasmonic and photonic properties, as well as its electronic properties relevant to superconductivity.
The CryForm project aims to replace synthetic stabilizing agents with crystalline materials, enabling innovative multiphase formulations for safer, more sustainable and affordable products. The project will develop biocompatible crystals for pharmaceutical, cosmetic and food applications, contributing to the European Green Deal.
Rice University researchers have developed a method to control the growth of tetrahedron-shaped nanoparticles, which can be used as building blocks for unique metamaterials. The team discovered that balancing thermodynamic and kinetic forces during crystallization allows for symmetry breaking, forming pyramid-shaped nanocrystals.
Scientists at New York University have developed seven new crystal forms of the insecticide imidacloprid, which work up to nine times faster than the original version. The new forms enable the control of disease-carrying mosquitoes in smaller amounts and with reduced environmental impact.
Researchers at the University of Barcelona have developed a simulated microgravity system that simulates conditions found in space, allowing for the study of 2D crystalline molecular structures. The system enables the growth of unique materials with unprecedented effects on orientation, compactness and generation.
A team of scientists has reported a technique that provides the most detailed picture of kidney stone components yet. The researchers used a novel method to analyze kidney stones, revealing the distribution of three different proteins and their role in crystal growth.
Siddha Pimputkar, an assistant professor at Lehigh University, has received the American Association for Crystal Growth (AACG) Young Scientist Award for his outstanding contributions to crystal growth. His research focuses on synthesizing bulk and thin-film single-crystal nitrogen-containing materials.
Researchers found that tin fluoride additive traps oxidized tin in solution, reducing instability. Fluoride also improves colloid stability, leading to more homogeneous crystal growth.
Researchers led by Associate Professor Yuki Fuseya found concrete evidence of Turing patterns at the nanoscale in a bismuth monolayer, resembling stripes on tropical fish. The study paves the way for new research directions in nanoscale physics and could lead to techniques for producing nanoscale devices with self-healing properties.
Researchers discovered that zinc slows down calcium oxalate crystal growth while also altering surfaces, creating defects for new crystals to form. The study offers a resolution to conflicting theories on zinc's role in kidney stone formation.
Researchers at UC Berkeley found that the inner core's asymmetric growth explains a long-standing mystery about iron crystals' orientation. The study suggests the core may be only 500 million years old, contradicting previous estimates and shedding light on Earth's magnetic field history.
Researchers studied sediment scour and bedrock erosion in waterfall plunge pools, finding mass balance controls on these processes. Climate change was also explored during the end-Permian extinction, with a focus on the impact of chemical weathering and land surface temperature.
Researchers from Argonne National Laboratory and universities reveal alternating step kinetics during gallium nitride crystal growth, challenging conventional wisdom. The study uses advanced X-ray scattering techniques to monitor the rate of growth on the crystal surface steps.
A new method for growing bulk single-crystal nitrides has been developed by Lehigh University materials scientist Siddha Pimputkar, which could lead to more-efficient and less-costly electronic devices. The approach involves using lithium nitride as a precursor and a specialized pressure cooker to overcome the challenges of growing lar...
Two research breakthroughs accelerate the development of synthetic diamond-based quantum technology by addressing cost and fabrication difficulties. A new hard masking method enables precise engineering of optical defects in diamond devices, while a novel growth process uses lower-cost polycrystalline substrate.
The study reveals that thick and rough solid-liquid interfaces facilitate rapid crystal growth by breaking up disorder. Disordered states are inherently unstable mechanically, leading to a domino-like chain reaction of crystal growth.
A new exhaust gas abatement system has been developed to detoxify dangerous gases used in device manufacturing processes. The system uses arc plasma heat source to reduce the amount of energy required for processing, resulting in an energy savings of up to 75%.
Researchers from MIPT and ITMO University have created a system for controlled formation of melamine cyanurate crystals, which can be used to deliver drugs directly to specific tissues in the human body. The discovery opens up new possibilities for targeted drug delivery technology.
Researchers have developed a new method to prevent ice crystal formation during cryopreservation, enabling cells and organs to survive and even proliferate after thawing. The technique uses nanocomposites to regulate ice nucleation and reduce damage caused by crystallization.
The Helmholtz-Zentrum Berlin team has developed a scalable method for coating larger surfaces using slot-die coating. They found that the optimal amount of dimethyl sulfoxide (DMSO) in the material ink is critical for crystal growth, with too little or too much reducing performance.
Researchers used advanced transmission electron microscopy (TEM) to observe mesocrystals form in real-time, revealing a new pathway of crystallization by particle attachment. This discovery could help design materials for energy storage and understand natural mineralization.
Scientists at NAIST create arrays of isosceles silicon pyramids with flat facet planes, achieving ultrafine 3D shape control. Coating the pyramids with a thin layer of iron imparts unique magnetic properties.
This study demonstrates CsPbBrI2 perovskites with improved optoelectronic performance through secondary grain growth functionalization. The resulting devices exhibit ultra-low energy loss, higher carrier mobility, and record PCEs under various light sources.
Research from Rice University found that certain cooling magmas can grow large crystals in just hours or days, defying traditional understanding of crystal growth. The study used advanced techniques to measure the chemical composition and growth rates of sample crystals, revealing surprisingly fast growth rates.
Researchers at Tohoku University have successfully grown large single crystals of tin monosulfide (SnS), a promising material for next-generation solar cells. The achievement marks a significant step towards developing SnS solar cells with high conversion efficiency and could accelerate their practical application.
Researchers propose creating a global database of 2D crystal patterns and recipes to unlock the CVD process and environment for mass production. A Nakaya-like diagram has been developed to analyze these patterns, enabling scientists to infer clues about process variables.
Researchers develop new algorithm to measure crystal growth rate in supercooled liquids, achieving accuracy orders of magnitude higher than existing methods. The approach is based on molecular dynamics simulation and can be applied to various systems with different physicochemical properties.
The research team created A4 paper-sized single-crystal metal foils with various surface structures by seeded annealing. They found that the surface energy of Cu foils can be tuned to produce desired surface types, enabling scalable synthesis of large transition metal single crystal foils.
Drexel researchers have discovered a way to chemically manipulate polymer structures to form spherical crystals with controlled symmetry. This technique could improve the mass production of targeted therapies by allowing for precise control over crystal shape and size.
Scientists at Shinshu University have created a new method for growing rubies on sapphire using the flux method, which reduces energy consumption and environmental impact. The team studied the solubility curve of ruby crystal growth in Molybdenum Trioxide (MoO3) and found it to be crucial for precise crystal growth.
Researchers from Peter the Great St.Petersburg Polytechnic University used machine learning methods to predict artificial sapphire crystals' properties. The goal is to minimize defects in crystal structure for modern technology development.
The study highlights the potential of wide bandgap semiconductor devices built with silicon carbide to achieve faster switching speeds, lower losses, and higher blocking voltages. This technology has the potential to significantly reduce carbon dioxide emissions and promote a more sustainable green economy.
Researchers have fabricated organic heterostructures with enormous structural diversity and novel optical/electronical properties using polymorphism. These structures exhibit multiple output channels, structure-dependent optical signals, and good optical waveguide performance.
University of Groningen scientists study the rapid formation of thin films in real-time during spin-coating from solution. They discovered that adding a small amount of a 2D material to tin-based perovskites helps orient the crystals but forms an insulating layer that reduces efficiency.
Researchers have designed efficient polymers to prevent ice growth and damage cells during cryo-storage. The study identifies key factors controlling the binding of flexible polymers to ice, paving the way for de novo design of more potent inhibitors.
IBS researchers successfully grow large-area, single crystal bilayer and trilayer graphene films on Cu/Ni(111) alloy foils with specific stacking patterns. The resulting graphene sheets exhibit exceptional thermal conductivity, mechanical performance, and electrical transport properties.
Antimalarial drugs are found to work against each other when combined, a phenomenon known as antagonistic cooperation. This discovery could lead to more effective treatments for malaria, a disease that killed 435,000 people in 2017.
The new THVPE method produces high-quality GaN crystals at a faster growth rate than current conventional methods, with lower defect rates. This breakthrough technology holds promise for mass-producing low-cost, high-performance GaN devices.
Researchers at the University of Illinois Chicago have identified a general mechanism governing crystal growth that scientists can manipulate when developing new materials. The 'dancing' barrier surrounding crystal-forming molecules is shown to fluctuate under different conditions, allowing molecules to break free and form crystals.
A new study reveals that DFDT, a faster and less toxic insecticide than DDT, was created by German scientists during WWII. The compound kills insects more quickly and in smaller amounts, potentially minimizing its environmental impact.
Researchers developed a framework to describe the process of ultrastructural morphogenesis of molluscan shells. They demonstrated that mineral phase growth is guided by regulating chemical and physical boundary conditions, influencing shell architecture and evolution.
Researchers at Lehigh University found that surface thermodynamics plays a critical role in driving structural transformations between crystal structures, challenging kinetic effects as the primary explanation. This discovery has implications for controlling and predicting the structure produced in crystallization processes.
Researchers at Western University and Lawson Health Research Institute have found that senescent cells contribute to the growth of ascending aortic aneurysms. The study suggests that therapies targeting these cells could prevent or slow down aneurysm growth, potentially saving lives.
Researchers at Oak Ridge National Laboratory explored how 2D crystals can grow over 3D objects and found that curvature can stretch and strain the crystals. Conformal growth of perfect 2D crystals over curved objects has the promise to localize strain and create high-fidelity arrays of single photon emitters.
Researchers have discovered a new substance that can form during the oriented attachment (OA) process of crystal growth, which may deepen our understanding of crystal formation mechanisms. The discovery was made using state-of-the-art experimental methods and theoretical calculations.