Articles tagged with Thin Film Deposition
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Scientists found a metal-insulator transition in 2H-MoTe2 by enhancing electron-phonon coupling at the surface. The experiment shows strong interaction of electrons and lattice excitations, forming polarons that localize and drive the observed phase transition.
Researchers successfully ignite lean methane/air mixtures using intense fs-lasers, achieving a 100% ignition success rate with sub-mJ energy. The approach has general applicability to complex combustion conditions and provides possibilities for ultrafast physical/chemical processes investigation.
A recent study found that China's Clean Air Act led to a significant decline in atmospheric deposition of heavy metals, with beneficial effects on soil pollution. The act reduced fine particles and sulfate aerosols, resulting in lower levels of toxic metals like cadmium in the environment.
Researchers found that the COVID-19 virus can survive on surfaces for hours due to a nanometer-thick liquid film clinging to the surface. This survival time is orders of magnitude longer than typical respiratory droplet drying times, emphasizing the need for frequent disinfection and heating surfaces.
Scientists have created a new platform to rapidly create and characterize blends of materials, significantly accelerating material development. The platform uses electrospray deposition and x-ray scattering to explore complex compositional dependencies in a matter of days, reducing the time from months or weeks.
Researchers at TU Graz have discovered a new sediment archive on the Styrian Erzberg, providing valuable insights into recent climate development. The archive features geologically young minerals formed shortly after the last ice age, challenging current understanding of mineral formation temperatures.
University of Alberta scientists uncover formation mechanism behind iron oxide-apatite deposits. They are deposited from a unique liquid dominated by calcium carbonate and sulfate, providing geologists with new clues to guide the hunt for more ore.
A self-assembling monolayer of electrochemically active molecules protects the surface of the lithium anode, preventing dendritic growth and increasing cycle life. This technology enables cold charging and quick-charging capabilities in lithium metal batteries.
Scientists studied 23-million-year-old leaves from a New Zealand deposit and found that high CO2 levels spurred plant growth, mirroring modern climate change. The study sheds light on how plants may respond to rising CO2 levels, with implications for global ecosystems.
Researchers at RMIT University developed a simple method for making ultra-thin, cost-effective transparent electrodes that can block heat and conduct electricity. The new spray-on coatings rival current industry standards and could simplify the fabrication of smart windows and low-emissivity glass.
Researchers at USTC developed a hydrothermal deposition method for synthesizing antimony selenosulfide, which enables the creation of compact and flat films with high efficiency and stability. The material's tunable band gap and high extinction coefficient make it suitable for light-weight and portable electricity generation devices.
Researchers at Sanford Burnham Prebys Medical Discovery Institute have identified vitronectin, a blood protein, as a promising drug target for dry age-related macular degeneration. The study's findings suggest that vitronectin drives the formation of abnormal deposits that cause progressive vision loss.
Researchers developed a novel material that enables major leaps in electronic device miniaturization. The ultrathin boron nitride film boasts an extremely low dielectric constant and high breakdown voltage, making it attractive for practical electronic applications.
A new study successfully demonstrates the synthesis of ultrathin amorphous boron nitride films with extremely low dielectric constants, high breakdown voltages, and superior metal barrier properties. These materials have great potential as interconnect insulators in next-generation electronic circuits.
A new study reveals that CFC replacements are accumulating in the Canadian Arctic, with levels of degradation products tenfold increasing between 1986 and 2014. The findings suggest that these substances are as concerning as their predecessors and do not break down, posing a threat to the ecosystem.
Researchers have introduced a new concept for designing photocatalytic systems with reversed configurations, which significantly improve light absorption, charge separation, and surface catalysis. This design concept can be extended to other systems and reactions to promote solar-to-chemical conversion.
Researchers are studying salt deposits as a long-term disposal solution for high-level nuclear waste, which can create heat and radioactivity. The US Department of Energy is conducting thermal testing underground to test the safety and efficacy of salt formations in containing radionuclides.
Researchers from Universität Bayreuth have developed a novel spraying method, Powder Aerosol Deposition (PAD), which enables the production of dense ceramic films at normal room temperatures. The resulting coatings exhibit excellent mechanical properties, including high hardness and chemical resistance.
At 2-dimensional limit, researchers at Peking University detect novel zero-energy bound states resembling Majorana zero-energy bound states in interstitial Fe adatoms on high-temperature superconducting thin films. These findings exhibit characteristics of Majorana zero mode, a potential building block for topological qubit.
The Korea Institute of Energy Research has successfully developed a lightweight and flexible CIGS thin-film solar cell on polymer substrate with an efficiency of 20.4%, surpassing the existing highest efficiency of 20.8%. The researchers introduced a new low-temperature film formation technology to enhance device efficiencies.
Researchers developed a composite membrane for long-life zinc-based flow batteries, improving cycle life and energy efficiency by regulating zinc deposition morphology. The new membrane can stabilize alkaline zinc-iron flow batteries for 500 charge-discharge cycles with over 80% energy efficiency.
Researchers have found a cost-effective method to produce catalysts for hydrogen engines, reducing material costs and increasing efficiency. Molybdenum sulfide is proposed as a suitable alternative to expensive platinum or molybdenum-based catalysts.
Scientists propose a new design that replaces traditional high-n materials with tunable nanolaminate layers to achieve improved performance parameters. The new coating enables larger bandwidth, higher LIDT, and smaller transmission ripples compared to traditional designs.
Researchers at the University of Pennsylvania have discovered a way to synthesize organic 'Legos' that can be easily connected to make new materials. The new method uses electricity to create thin films of 2D sheets stacked in multiple layers, resulting in lightweight and heat-tolerant materials with enhanced properties.
The study estimated nitrogen deposition in northern China using a combination of remote sensing data and atmospheric chemical transport model simulations, revealing an average flux of 54.5 kg N per hectare. This represents 10% of the annual nitrogen application for winter wheat-summer maize rotation in the region.
A new study reveals that the Jezero crater landing site is home to hydrated silica deposits, which are exceptional at preserving microfossils and other biosignatures. The rover will be able to perform fine-scale chemical analysis and provide a close-up view of these deposits to help determine their origin.
Researchers at the University of Warwick have discovered a way to make patterned films of silver and copper without using toxic chemicals or expensive methods. The new method uses an extremely thin printed layer of organofluorine to prevent metal deposition, making it more sustainable and potentially cheaper.
A study found that a significant release of radioactive ruthenium occurred in October 2017, with highest levels detected over Romania. The release is believed to have originated from the Mayak nuclear complex in Russia, consistent with air mass movements and deposition patterns.
Researchers have created ultra-thin magnetite nanowires with a remarkable 'Verwey transition' from metal to insulator at low temperatures. This unique property could be used to control electronic devices and support green technology.
Researchers discovered a 'third phase' that does not occur in bulk material and corresponds to a monomolecular layer of the semiconductor. This structure is favorable for charge transport across the films, which could lead to improved performance in microelectronics applications.
Researchers developed colorful perovskite solar cells by depositing a uniform perovskite thin layer into arrayed nanobowls acting as a structured electron transport layer. The cells exhibited high-efficiency photovoltaic performance with up to 16.94% efficiency, overcoming previous color limitations.
Researchers developed a micro-capillary injector that accelerates nanometer-scale structure fabrication using a supersonic jet of inert gas. The technique allows for rapid production of structures with high aspect ratios, suitable for applications in magnetic memory and quantum communication devices.
Researchers at UT Austin have discovered a method to extract natural gas from methane hydrate deposits while capturing CO2, a greenhouse gas. This process involves injecting air and CO2 into the deposits, which helps to stabilize the environment and increase energy efficiency.
Scientists have traced a prehistoric eruption to the lesser-known volcano Campi Flegrei in Naples, which dated back 29,000 years. The research, published in Geology, used computer models and sediment cores to identify the ash layer's origin.
Researchers verified that the 29,000-year-old Masseria del Monte Tuff eruption at Campi Flegrei caldera was responsible for widespread volcanic ash layers across the Mediterranean. The study suggests that this large-magnitude event occurred between known caldera-forming events, reducing the recurrence interval of such eruptions.
Dorothee Dormann's work reveals similarities in ALS and FTD pathogenesis, highlighting the role of protein FUS in disease progression. Her research aims to identify molecular targets for therapy and explore common mechanisms with other neurodegenerative diseases.
An international team has uncovered fossilized traces of motility in a 2.1 billion-year-old fossil deposit in Gabon, shedding light on the evolution of life on Earth. The discovery provides evidence of sophisticated multicellular organisms that could move through their mud in search of nutrients.
Researchers report a three-fold increase in atmospheric iodine deposition since 1950 due to increased oceanic emissions driven by enhanced ozone levels from nitrogen oxide emissions. The French Alps' summer iodine concentrations tripled between 1950 and 1995, consistent with chemical transport model simulations.
Scientists at Tokyo Metropolitan University have developed a method to pin the edge of drying droplets, creating various geometric patterns. By adding microscopic latex particles to salt solution droplets, they can achieve controlled re-crystallization and form beautiful snowflake-like patterns.
A new study reveals that trace metals from aerosols affect biological productivity and change ocean ecosystems. Marine microorganisms like phytoplankton and bacteria take up metals, influencing the food chain.
Researchers at Columbia University have used Stimulated Raman Scattering microscopy to directly observe ion transport in electrolytes for the first time. They discovered a lithium deposition process with three stages: no depletion, partial depletion, and full depletion of lithium ions. The study also found a feedback mechanism between ...
Researchers found that shark vertebral band pairs are related to growth, specifically body width and girth, rather than time or age. This discovery challenges previous methods used for decades and has implications for fisheries management.
Researchers from UTEP and UNT discovered that dusty rainwater carries a range of chemical elements, including nutrients like iron and phosphorus. This study provides the first quantification of dust composition in Texas rainwater, highlighting the potential for pollutants and nutrients to impact ecosystems.
Researchers used advanced imaging techniques to subject small gold particles to extreme temperatures, revealing their remarkable resilience and ability to change shape. The findings have significant implications for nanotechnology applications in catalysis and aerospace.
Researchers at KAUST have developed a printable magnetic substrate that can be used to produce radio frequency devices with adjustable capacity and frequency tuning. The innovative technology uses iron-based nanoparticles in an ink-like substance to create antennas with improved performance and lower costs.
Texas A&M researchers use supercomputers to develop graphene oxide nanosheet coating that controls dendrite growth, improving cycle life and stability of lithium-metal batteries. The material is applied using a spray coating gun and has shown enhanced performance in experiments.
The study of a two-billion-year-old salt mineral deposit provides new insights into the Earth's atmosphere following the Great Oxidation Event. Marine sulfate concentrations were significantly lower in ancient oceans, indicating large amounts of oxygen reacted with sulfur, accumulating in the oceans as sulfates.
Scientists at Shinshu University have discovered a way to curb the dangers of lithium ion batteries by adding magnesium salt, which prevents dendritic branching and improves electrochemical stability. The goal is to create high-capacity batteries with improved reversibility for widespread use in electric vehicles.
Researchers find evidence of gold particles in Antarctic xenoliths, tracing them to the deep mantle. The study suggests that the mantle's history and tectonic movements led to gold deposit formation.
Scientists at Rensselaer Polytechnic Institute successfully grow strain-free germanium films on mica using van der Waals forces, overcoming the challenge of lattice mismatch. This breakthrough enables the growth of relaxed films with potential applications in high-efficiency solar cells and advanced electronic devices.
Researchers at Rice University have developed microfluidic devices to study the interaction between asphaltene and dispersants, revealing that smaller particles are more likely to stick together. The study found that dispersants can break down deposits by increasing repulsion between aggregates, creating softer asphaltenes.
Researchers have devised a general method to control grain boundaries in 2D materials, leading to enhanced electrical conductivity, mechanical properties, and magnetism. The innovative approach utilizes Gaussian curvature on the substrate to predetermine grain boundary locations and line them up in orderly positions.
Researchers at MIPT have conducted precise measurements of ultrathin gold films, which are key components of modern micro- and nanoscale optical and optoelectronic devices. The findings reveal that the properties of thin gold films are heavily dependent on their structure and average grain size.
Researchers have identified a cyclic peptide that can bind to hair under shampooing conditions, increasing the deposition of fragrance compounds. This results in stronger fragrance smells on hair for up to 24 hours after shampooing.
A team from HZB and EMPA successfully realized direct electron beam writing of silver nanocrystals using Electron-Beam-Induced Deposition. This breakthrough enables the creation of complex features onto a substrate in a single step, promising applications in nano-optics and information technology.
Researchers at the University of Hamburg have developed a new transistor concept based on metal nanoparticles, which exhibit energy gap properties due to Coulomb repulsion. This approach enables scalable synthesis, high-quality thin films and flexible devices with adjustable electrical characteristics.
A new study of stalagmites from an Iranian cave suggests the Middle East will experience diminishing precipitation and no relief from drought in the next 10,000 years. The research links climate changes to solar insolation across Eurasia, indicating a prolonged dry spell.
The NANOaers project investigates airborne nanoparticle mixtures and their impact on respiratory health. Researchers analyze the behavior of nanoparticles with other chemicals, aiming to predict their fate and potential health effects.
Researchers at Nagoya Institute of Technology created a novel coating process that simplifies the industrial method of electrophoretic deposition, reducing energy demands and costs. The new coating surface is achieved by incorporating non-ionic polymers with a 'colorless' color, enabling mass production in various colors.
Researchers have discovered that topaz granites are extremely enriched in lithium and have a high concentration of metals such as tin and tungsten. The study's findings may impact where to look for these metals across the region, particularly in Cornwall and Devon.