Articles tagged with Sunlight
Researchers at Harvard University discovered that giant deep-sea vent tubeworms possess two functional carbon fixation pathways, the Calvin-Benson–Bassham (CBB) and reductive tricarboxylic acid (rTCA) cycles. These pathways are coordinated to enable symbionts to thrive in dynamic and harsh environments.
A German junior research group at the University of Oldenburg is developing precious-metal-free catalysts to convert carbon dioxide into methanol, formaldehyde, and ethylene. The team aims to create inexpensive and durable materials for large-scale industrial applications.
MIT researchers demonstrate that light can break water molecules away from the surface and float them into the air, causing evaporation in the absence of heat. This phenomenon has significant implications for understanding cloud formation and precipitation, as well as designing new industrial processes such as solar-powered desalination.
Researchers at the University of Birmingham found that marine cloud brightening can account for 60-90% of the cooling effect, increasing cloud cover by up to 50%. The study suggests MCB could be a more effective 'painkiller' than previously thought.
Researchers at ICFO have fabricated a new four-terminal tandem organic solar cell with a high power conversion efficiency of 16.94%, achieving a significant improvement over previous records for four-terminal tandem devices. The device features an ultrathin transparent silver electrode, enabling efficient light transmission and operation.
Researchers at Uppsala University and First Solar European Technology Center have achieved a world record of 23.64 per cent efficiency in CIGS solar cells, surpassing the previous record of 23.35 per cent. The study demonstrates that CIGS thin-film technology is a competitive alternative as a stand-alone solar cell.
A study found that 670 nanometres of red light stimulated energy production within mitochondria, leading to increased glucose consumption and a 27.7% reduction in blood glucose levels. This non-invasive technique has the potential to impact diabetes control by reducing damaging fluctuations of blood glucose.
Researchers at KAUST Solar Center have developed a roadmap for commercializing perovskite/silicon tandem solar cells, which combine efficient light absorption and long-term stability. The technology has the potential to meet Saudi Arabia's solar targets and exceed $10 billion in market value within a decade.
A novel transparent spectral converter, GdPO4-GC:Eu3+/Pr3+, absorbs UV photons and re-emits them as visible light, increasing photovoltaic devices' conversion efficiency. This technology shields PCs from UV damage and enhances their sensitivity to UV photons.
EtaVolt's innovative technology rejuvenates old solar cells with intense sunlight, restoring performance and protecting against light and heat damage. This game-changing solution extends the operational lifespan of solar panels, reducing energy loss and e-waste.
A Lancaster University PhD student used a new method to calculate the optical depth of Saturn's rings, revealing their transparency. By analyzing changes in Cassini's Langmuir Probe data during solar eclipses, the researcher determined how much sunlight passed through each ring.
Researchers at King Abdullah University of Science & Technology have developed organic solar cells with record efficiencies and discovered a link between molecular structure and outdoor stability. The study found that fluorine-bearing functional end groups and long hydrocarbon side-chains enhance outdoor stability, protecting the cells...
Scientists developed a synthetic melanin that accelerates wound healing and protects against sun damage. The cream also quiets the immune system, allowing for continuous repair and reducing inflammation.
A team of researchers at MIT has discovered a process where light can directly cause evaporation without heat, exceeding the thermal limit. This phenomenon could explain natural phenomena like fog and clouds, and enable new approaches to desalination.
Researchers discovered a unique protein in bristle worms that distinguishes between sunlight and moonlight. The protein, L-Cry, disassembles under intense light and forms a stable connection in the dark.
A novel method transforms wastewater pollutants into semiconductor biohybrids directly in the wastewater environment, producing valuable chemicals like 2,3-butanediol. The process exhibits scalability and a lower carbon footprint compared to traditional methods, making it an eco-friendly approach to chemical manufacturing.
The study predicts a reduction in snowpack decline of less than half due to cleaner snow from reduced pollution, warming temperatures still dominate the effect. Cleaner snow can be expected in the future, reducing the impact on mountain ecosystems.
Scientists at IISc have developed an enzyme mimetic called NanoPtA that can degrade toxic chemicals in industrial wastewater effectively in the presence of sunlight. The nanozyme is highly specific and robust, making it suitable for large-scale industrial use.
A new solar-powered desalination system can produce drinking water at a lower cost and rate than traditional tap water. The system, developed by MIT engineers and their Chinese collaborators, uses natural sunlight to evaporate seawater, leaving salt behind, and has a higher production rate and rejection rate than previous designs.
Researchers have found that diamond materials can release electrons in water and trigger chemical reactions when excited by light. The team used X-ray spectroscopy to precisely track the processes taking place on the surface of diamond materials, revealing that they are well-suited for use in aqueous solutions.
Researchers at Hokkaido University have developed copper-doped tungstic acid nanocrystals that can harness all-solar energy, including infrared light. The nanocrystals exhibit enhanced photothermal and photo-assisted water evaporation characteristics, making them suitable for various applications.
Researchers at the University of Texas at Austin have developed a molecularly engineered hydrogel that can create clean water from hot air, using solar energy. The device produces up to 7 kilograms of water per kilogram of gel materials, with potential applications for drought-stricken areas and countries lacking access to clean water.
Researchers developed a new type of photocatalyst harnessing the visible portion of sunlight spectrum. The photocatalyst achieved high photo-to-chemical conversation efficiency and was found to be extremely stable under various conditions, including high temperatures and different pH levels.
Scientists create a design that enables simultaneous presentation of photothermal, thermal conductive, and superhydrophobic properties, achieving record-high defrosting efficacy. The innovative assembly enhances de-icing and defrosting efficiency, reducing overall defrosting durations by 2-3 times.
The study provides a condensed overview of recent advances and challenges in atmospheric and pressurized PVSRs, highlighting potential for improving performance through geometrical parameter optimization and spectrally selective absorption. Standardized evaluation methods remain essential to unlock the full potential of PVSRs.
A joint research team from City University of Hong Kong and collaborators developed a stable artificial photocatalytic system that mimics natural chloroplasts to convert carbon dioxide into methane, a valuable fuel, very efficiently using light. The new system achieved a highly efficient solar-to-fuel efficiency rate of 15%, surpassing...
Rice University engineers have created a device that converts sunlight into hydrogen with unprecedented efficiency, opening up new possibilities for clean energy and sustainable fuel production. The innovative technology uses halide perovskite semiconductors and electrocatalysts in a single, durable device.
Researchers at Drexel University have developed a photocatalytic titanium oxide nanofilament material that can harness sunlight to unlock the potential of hydrogen as a fuel source. The material outperforms current methods and is stable for months, offering a sustainable and affordable path to creating hydrogen fuel.
A research team at CityU developed a multifunctional composite polymer coating with both radiative and non-radiative cooling capacity, enhancing heat dissipation in wearable electronics. The cooling interface achieved temperature drops of over 56°C, improving the performance of skin electronic devices.
Researchers at KIT have developed highly efficient photoreactor panels that can be inserted into inexpensive modules for mass production of hydrogen or fuels. The technology could make the use of fossil energy carriers superfluous and provide a climate-neutral alternative, with costs estimated to be around $22 per square meter.
A Surrey study finds that Daylight Saving Time decreases serious road accidents by 15-20% during the transition, primarily due to improved visibility. The research also suggests that leaving DST in Autumn increases minor road accidents, highlighting the importance of artificial lighting conditions.
Researchers developed an automated method to detect and count microplastics in contact lenses, finding that lenses with shorter lifetimes shed more microplastics when exposed to sunlight. The study estimates that over 90,000 microplastic particles per year could be shed from some lenses if worn for 10 hours a day.
A team of researchers from China and the UK has developed new ways to optimise the production of solar fuels by creating novel photocatalysts. These photocatalysts, such as titanium dioxide with boron nitride, can absorb more wavelengths of light and produce more hydrogen compared to traditional methods.
Researchers develop artificial photosynthesis devices to convert sunlight into oxygen, potentially supplementing space travel with sustainable energy. These devices mimic plants' natural process, recycling carbon dioxide and producing oxygen using only sunlight.
Researchers propose a device design that can take the efficiencies of 2D TMDC devices from 5% to 12%, doubling the weight-saving potential. This breakthrough could address the energy supply challenges in space exploration and settlements, where traditional solar cells are too heavy to be transported by rocket.
Researchers used coherence maps to study quantum mechanisms in photosynthesis, revealing energy transfer pathways and a clear explanation for the process. The technique gave important insights into one of biology's great mysteries.
Researchers at the University of Nebraska-Lincoln have identified new genes that regulate the surge protector in plants, which can help increase photosynthesis efficiency and boost corn yields. The discovery could lead to breeding plants better equipped to capitalize on yield-boosting sunlight.
University of Rochester researchers create a groundbreaking system mimicking photosynthesis using bacteria and nanomaterials to produce clean-burning hydrogen fuel. The innovative approach replaces fossil fuels in the process, offering an environmentally friendly alternative.
Researchers capture elusive missing step in photosynthesis using SLAC's X-ray laser, revealing an intermediate reaction step that sheds light on how nature optimizes photosynthesis. The data provide a blueprint for optimizing clean energy sources and avoiding side products.
ASU researchers have developed a method to regenerate biocrusts on arid lands by harnessing the power of solar farms. The approach, dubbed 'crustivoltaics,' has shown promising results in doubling biocrust biomass and tripling biocrust cover under photovoltaic panels.
Researchers from City University of Hong Kong and NREL developed a one-step solution-coating approach to simplify PSC manufacturing, resulting in high efficiency and stability. The new method reduces process complexity and cost, bringing PSCs closer to commercialization.
Researchers at Colorado State University propose using ultrathin films of molybdenum disulfide to improve solar cell efficiency. The material displays unprecedented charge carrier properties that could lead to drastic improvements in solar technologies.
Researchers have developed a practical method to generate green hydrogen using natural enzymes, which contain only earth-abundant elements. The new approach enables the efficient production of green hydrogen from sunlight, making it a promising solution for decarbonizing transportation and industries.
A European consortium has achieved a world-record solar-to-fuel efficiency of over 10% in converting CO2 and H2O into sustainable fuels using sunlight. The innovative cell produces hydrogen continuously (24/7) without the use of critical raw materials.
Researchers at GIST developed a novel thermoelectric generator inspired by zebra skin, creating a high in-plane temperature gradient for generating electricity. The design uses a pattern resembling black-and-white zebra stripes to increase its applicability while reducing environmental impact.
Researchers at UCLA have developed a new type of solar roof that can harness energy from sunlight without blocking light for plants. The innovative design uses semi-transparent organic solar cells with a layer of L-glutathione, which extends the cells' lifetime and improves efficiency.
Researchers found that solar water disinfection (SODIS) was effective in inactivating Escherichia coli bacteria at both low and high altitudes. At high altitudes, bacterial inactivation increased by 1.7-fold after two hours, with no significant differences after six hours. The study highlights the potential of SODIS to improve global a...
A team from Australian National University has modified the protein folding properties of bacteria by adding multiple components from plant chloroplasts. This enables them to study and speed up plant Rubisco, a slow protein that requires 'chaperones' for operation.
A University of Utah-led study explores using space dust as a shield to reduce solar radiation and slow global warming. Launching lunar dust from the moon instead of Earth's way station at L1 could be an effective and cheap solution.
A study by researchers from Hosei University and Kyoto University found that the red velvet mite's bright red pigment is primarily composed of astaxanthin, a powerful antioxidant. This high concentration of antioxidants helps protect the mites from harsh environments caused by UV radiation and heat.
New Zealand and five other island nations, including Australia and Vanuatu, have the potential to continue producing food despite reduced sunlight and cooler temperatures after a nuclear war. However, countries' resilience is threatened by dependence on imported commodities and collapse of industry and social functioning.
A study published in Atmospheric Chemistry and Physics found that phytoplankton productivity in the Southern Ocean contributes to dense clouds that reflect sunlight. The high density of water droplets in these clouds helps regulate global temperatures and precipitation patterns.
A study by Pusan National University researchers found that countries closer to the equator have higher suicide rates due to decreased sunlight exposure. The prevalence of suicide increased with latitude, and was found to be higher in men than women, with age also being a significant factor
A research group has reported efficient near-infrared photon upconversion sensitized by lead-free semiconductor nanocrystals, demonstrating its novel application in solar synthesis. The study achieves external quantum efficiency of 16.7% and enables rapid organic synthesis under indoor sunlight.
A systematic review found that higher vitamin D intake was associated with a 15% decreased likelihood of developing type 2 diabetes in adults with prediabetes. Inexpensive vitamin D supplementation could delay the development of diabetes in over 10 million people worldwide.
A multilayered fluidic system inspired by squid skin can optimize the wavelength, intensity, and dispersion of light reaching building interiors. This could lead to significant savings on heating, cooling, and lighting energy costs, with annual reductions of up to 50%.
Researchers at Ritsumeikan University have successfully synthesized ring-shaped nanostructures via the self-assembly of chlorophyll derivatives, mimicking the arrangement of chlorophyll pigments observed in nature. This discovery enables efficient sunlight absorption and could lead to novel smart materials with tunable properties.
A new solid film can perform visible-to-UV photon upconversion for weak incident light while remaining photostable in air. The material has an ultralow excitation threshold and a high quantum yield, making it suitable for various applications.
Researchers discovered that non-vascular bryophytes like Marchantia polymorpha adapt their architecture in response to shade, using phytochromes to regulate branching. The study found a liverwort-specific microRNA and SPL gene controlling meristem function, differing from vascular plants.
A new method for measuring bifacial solar panel performance has been developed by the University of Ottawa SUNLAB team. The study proposes a characterization method that considers external effects of ground cover like snow, grass, and soil, providing a way to accurately test panel performance indoors.