Articles tagged with Crystal Growth
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Scientists at Peking University control crystal growth and material assembly by utilizing fluid flows. A stable single vortex is produced, enabling oriented deposition of materials.
Researchers have discovered a new method to grow large graphene single crystals with a growth rate of up to 79 μm s-1 on liquid Cu, exceeding that on solid Cu. This is made possible by the unique properties of liquid metal, which accelerates nucleation and promotes fast growth.
Researchers have discovered a persistent pattern in the arrangement of islands that form on crystal surfaces during layer-by-layer growth. The study uses coherent X-ray scattering to reveal correlations across the sample, providing insights into crystal growth dynamics and potential applications in materials science.
Researchers at Rice University have developed a theory explaining why monolayer crystal islands align on vicinal substrates, allowing for large-scale growth of 2D materials like graphene and h-BN. The 'digital filter' mechanism helps to overcome small indentations in the steps, enabling seamless merging of the crystals.
Physicists from Brookhaven National Laboratory and Yale University have synthesized large-area single-crystal domains of borophene on copper substrates, expanding its potential for fabricating high-performance devices. The discovery represents a significant step towards practical borophene-based electronics.
Researchers at Kyoto University successfully created intense terahertz pulses to fine-tune the switching behavior of a phase-change memory material. This breakthrough could lead to faster and more stable memory technologies with increased density.
A research group at IBS invents contact-free annealing technique to convert polycrystalline metal foils into single crystals with superior properties. They successfully produced large single crystal metals up to 32 cm2, including copper, nickel, cobalt, platinum, and palladium.
Researchers at Lehigh University have developed a new, more efficient way to produce cubic boron nitride, a material with exceptional durability and potential for improved power conversion efficiency in electronic devices. The approach enables larger crystals of the material to be produced at lower costs and reduced energy consumption.
The study provides guidance on synthesizing high-quality graphene with less domain boundaries. Researchers found that the lattice orientation of graphene is determined by the Cu crystal it is nucleated on, regardless of the substrate's crystallinity.
Researchers have developed a CdS-CdSxTe1-x-CdTe core-shell nanobelt photodetector with high sensitivity and fast speed, outperforming traditional nanostructures. The detector has a responsivity of 1520 A/W and a detection spectrum covering the entire visible range.
Scientists have discovered an ice-binding protein that attaches to both basal and prism faces of ice crystals, affecting their growth and defying conventional classification. This finding could lead to a broader application of antifreeze proteins in food and medical industries.
Researchers developed a new method to detect nucleation in microdroplets by measuring contrast between droplets and their surroundings. The technique provides the most accurate and efficient way to detect crystal nucleation, overcoming previous resolution challenges.
A novel VLS growth mechanism yields nanoscopic semiconductor ribbons only a few atoms thick, opening doors to highly integrated electronic and photonic devices. The breakthrough method uses liquid droplets to mediate the growth of MoS2 ribbons in a unique 'crawling mode', allowing for direct 1D growth of van der Waals layered materials.
Researchers have developed a method to produce high-quality monocrystalline silicon thin films with reduced crystal defects, grown at a rate 10 times higher than before. This technology could drastically reduce manufacturing costs while maintaining power generation efficiency.
A new technique allows for the growth of large, single-crystal-like graphene films over a foot long, enabling high-quality two-dimensional materials necessary for practical applications. The novel approach harnesses an evolutionary 'survival of the fittest' competition among crystals to produce uniform and robust graphene.
Scientists at Shinshu University develop a thin and dense connecting layer between electrodes using cubic crystal growth, improving lithium ion battery efficiency and addressing temperature issues.
Researchers developed a multistep process to grow single crystal, atomically thin films of tungsten diselenide on large-area sapphire substrates. The process achieved good crystal quality and improved performance by factors of 20-100 times.
Researchers at DESY's X-ray source PETRA III have observed the growth of gallium arsenide nanowires for the first time, providing new insights into their shape and crystal structure. The study reveals a second component contributing to the growth process, allowing wires to gain width independently of the VLS mechanism.
UCSB researchers have developed a computational method to predict the growth rates of ionic crystals, which may save time and energy in industrial processes. The method uses transition path sampling to understand the events leading up to the transition state, providing insights into the role of water molecules and ion interactions.
Cloud seeding with silver iodide resulted in the formation of ice crystals within 30 minutes, which grew up to 1 mm in diameter and eventually became precipitation as snow. The study provides valuable insights into the process of snow formation via cloud seeding, paving the way for further research.
Researchers have successfully grown large sheets of monolayer single-crystal graphene, overcoming technical challenges to achieve a 5 x 50 cm2 sheet in just 20 minutes. The low-cost method has the potential to expand graphene's usability and enable its use in flexible circuits.
Researchers developed a meniscus-assisted solution printing (MASP) technique to fabricate high-efficiency perovskite solar cells with large crystals. The process boosts power conversion efficiencies by controlling crystal size and orientation, resulting in stable and efficient solar cells.
Researchers from University of Konstanz have observed non-classical growth of crystals, where liquid preliminary stages accelerate growth rates. This finding has implications for basic research and practical applications, including faster-dissolving medicines.
A new study found that ultra-pure water forms ice crystals most efficiently in wedge-shaped surfaces with 45-degree or 70-degree angles. This discovery could impact transportation safety and the production of frozen food.
Researchers from Hokkaido University conducted microgravity experiments on the International Space Station to measure ice crystal growth rates. They found that glycoproteins in fish blood facilitate growth, but also lead to a slowing effect when flat faces are truncated by slower-growing faces.
Researchers at Weizmann Institute of Science directly observed crystallization process on molecular level, validating recent theories and showing that knowing how crystal grows can predict end structure. The study found that dense phases lead to lower energy barrier and more stable crystals.
Researchers control crystallization patterns in semiconductors by varying film thickness, enabling fine control over crystal orientation and position. This breakthrough facilitates high-quality, tailored polycrystal semiconductors for optoelectronics, photovoltaics and printed electronic components.
Researchers used microseeding technique to overcome hemihedral twinning in protein crystals. The method successfully produced untwinned crystals of LigM, leading to improved crystal structure determination.
Researchers found a natural fruit extract, hydroxycitrate (HCA), dissolves calcium oxalate crystals, the most common component of human kidney stones. The study suggests HCA is an effective inhibitor and may be preferred over existing treatments.
A team of researchers from Drexel University and two Chinese universities discovered a way to grow thin sheets of conductive metal oxides using salt crystals as a template. This method produces larger and more chemically pure materials, which are better suited for storing energy in devices like batteries and capacitors.
Japanese researchers grew protein crystals in space using interferometry to measure growth rate and dissolution properties. The results showed an increased growth rate despite expected suppression of solution convection, which may be due to suppressed transport speed of impurity molecules.
The National Science Foundation has awarded $17.8 million to Penn State to establish a national user facility for two-dimensional crystal research. The Two-Dimensional Crystal Consortium will focus on growing bulk and ultrathin crystalline chalcogenide materials, staffed by experts in crystal growth and theory/simulation.
Researchers at Trinity College Dublin have discovered a way to extract information from magma crystals, allowing them to reconstruct the history of global geography and predict future eruptions. This new method has the potential to improve our understanding of volcanic activity and provide more accurate predictions for eruptions.
The study introduces a novel approach to growing nanowires using metal-alloy catalysts, allowing for more control over their light-emitting and electronic properties. By adjusting the concentration of nickel and gold in the catalyst, researchers can precisely manipulate the orientation of the nanowires.
Researchers at Berkeley Lab have observed the direct formation of facets on platinum nanocubes, revealing that a long-held scientific principle breaks down at the nanoscale. This breakthrough enables the control of a nanocrystal's geometric shape and its subsequent chemical and electronic properties.
UH researchers found conclusive evidence of how silicalite-1 zeolites grow, involving nanoparticle attachment and molecular addition. This breakthrough technique allows for real-time observation of surface growth.
Mount Hood's magma chamber has been stored for at least 20,000 years in near-solid conditions, with the potential to erupt in as little as a couple of months. Scientists have discovered that magma needs to be heated to over 750 degrees Celsius to become mobile and potentially erupt.
Researchers have created a method for producing high-quality aluminum nitride (AlN) layers with atomic-scale thickness and at half the temperature of other methods. This breakthrough expands the potential for new advanced specialty materials in next-generation electronics.
Researchers are developing a new class of molecules called peptoids that can alter zeolite growth, changing the shape of these crystals from cylinders to flat platelets. This improvement will significantly extend the lifetime of catalysts, enabling companies to carry out processes more efficiently and at lower costs.
Researchers found that L-cystine crystals form stacked hexagonal 'islands' with one screw dislocation, contradicting long-standing BCF theory. However, further analysis revealed that the crystals actually grow in a manner predicted by the theory, showcasing the complexity of crystal growth.
Researchers from ETH Zurich have created tin nanocrystals that can absorb and release lithium ions more effectively, leading to improved energy storage capacity. The smaller crystals are able to store more energy than larger ones, making them ideal for future lithium ion batteries.
The team's detailed study reveals that clusters do not form a clearly defined intermediate step in the growth process, but instead are part of a gradual growth process. This new understanding completes the theory by describing alternative pathways for crystal formation.
Researchers have found a family of molecules that can delay or halt the freezing process by interacting with crystal surfaces, potentially leading to new methods for improving food storage and industrial products. The study's findings may also provide insights into how nature's own anti-freeze molecules work.
Dr. Quake recognized for revolutionary work in drug discovery, genome analysis, and personalized medicine, enabling large-scale automation of biology and improving human health outcomes. His microfluidic technology has enabled non-invasive prenatal testing and single-cell gene expression analysis.
Scientists analyzed magma chamber crystals and correlated them with seismic signals from Mount St. Helens' 1980 eruption, revealing a clear connection between crystal growth and volcanic activity. This study could improve eruption forecasting by providing insights into the timing of magma input and pulses of seismicity.
Researchers at Berkeley Lab directly observed the critical step of oriented attachment in nanocrystal growth, enabling a better understanding of forces driving this phenomenon. This breakthrough has potential applications in synthesizing new biomimetic materials and improving environmental restoration efforts.
Researchers at Berkeley Lab observed nanoparticles forming winding polycrystalline chains that align and attach end-to-end to form nanorods with controlled length-to-thickness ratios. This process suggests a new understanding of how nano-sized particles assemble into hierarchical structures.
Researchers from the University of Southampton and Cambridge have made breakthroughs in understanding phase change memory materials under rapid heating conditions. Crystal growth rates are found to be faster than previously thought, with implications for improving memory performance and reducing energy consumption.
The University of Cincinnati presented multiple papers at the Geological Society of America annual meeting, focusing on Permian extinction understanding, oceanic oxygen depletion, nitrogen cycles, ancient plant water use, and fossil classification. Research by UC geologists shed light on climate change mechanisms.
Researchers at NYU have developed a method to prevent the growth of crystals that form cystine kidney stones by using a synthetic inhibitor. This breakthrough may lead to a new approach to preventing cystine stones and offers hope for individuals affected by this disease.
Chemists from NYU and Russia's St. Petersburg State University have created crystals with a twisting mechanism that reverses when they thicken, creating needles with colorful helical structures.
Scientists have developed a method to control the buildup of hydrogen fluoride gas during crystal growth, leading to improved production and performance of materials. The new approach uses an HF absorber material to selectively remove hydrogen fluoride, preserving the uniformity of the crystal growth environment.
Researchers produced single-molecule resolution images of peptide-mineral interaction, revealing mechanisms that molecules use to bind to surfaces. Peptides slow down or speed up crystal growth depending on conditions, offering potential solutions for pathological mineralization and kidney stone treatment.
Researcher Rohit Trivedi conducts crystal growth experiments on the International Space Station using a mini lab called DECLIC. The goal is to understand how materials form crystals and how variations affect crystallization patterns, which govern material properties.
Biomolecules significantly enhance magnesium content in calcite, offering clues to ancient environments. The findings raise questions about the interplay of factors on metal contents in biominerals.
Researchers found three-billion-year-old zircon microcrystals in northern Ontario with an incredible 200-million-year growth span. The crystals provide a new record of planetary evolution and contradict previous theories about their behavior when exposed to heat and pressure.
Scientists have discovered that mother-of-pearl's unique mosaic architecture, with non-aligned crystals, may contribute to its exceptional strength by preventing the formation of natural cleavage planes. Researchers aim to model and reproduce this process to develop new biomimetic materials with improved mechanical properties.
Researchers find that organic molecules control the rate of crystal growth, allowing for the tuning of growth rates. The study's findings provide a new understanding of how proteins and biomolecules influence crystal formation.
Scientists have discovered a new mechanism for the formation of insulin crystals, which is crucial for understanding diabetes. The discovery, made by University of Houston researchers, provides insight into how insulin molecules attach to crystals and could lead to breakthroughs in various fields.
Researchers have discovered how certain zeolites form, enabling targeted methods to create crystals with precise sizes and shapes. The study reveals a step-by-step process, including silicon-oxygen nanoparticles forming first, which can be used to develop tailored designs for specific applications.