Articles tagged with Solar Energy
Researchers have developed a new semiconducting material called multielement ink that can be processed at low temperatures, paving the way for more sustainable semiconductor industry. The breakthrough enables faster and lower-energy production of semiconductors, which could significantly reduce carbon emissions.
Researchers have created MilliMobile, a tiny, self-driving robot powered only by surrounding light or radio waves. Equipped with sensors and tiny computing chips, it can move indefinitely on harvested power, enabling new abilities for swarms of robots in areas where other sensors struggle to generate nuanced data.
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.
A new strategy optimizes optical and electrical characteristics of thin c-Si solar cells, improving conversion efficiency by 28% compared to industrial thick counterparts. The proposed design uses a layer transfer method and metal nanofilms for enhanced light absorption and surface passivation.
Researchers at Technical University of Munich have developed a new class of organic dyes that can facilitate faster transport of solar energy within materials. These 'turbocharger' dyes show great promise for improving the efficiency of organic solar cells and other innovative energy applications.
A new study analyzes challenges in sustainably meeting different hydrogen demand scenarios on a country-by-country basis. The research finds that less than half of projected 2050 demand for hydrogen fuel could be produced locally using wind or solar power due to land and water scarcity.
Researchers have developed a hybrid silicon photocatalyst that efficiently produces hydrogen and high-value compounds using solar power. The non-toxic catalyst achieves an impressive rate of 14.2 mmol gcat−1 h−1, significantly higher than conventional silicon photocatalysts.
A new catalyst designed by researchers at City University Hong Kong and tested by Imperial College London could boost renewable energy storage. The catalyst uses single atoms of platinum to produce an efficient but cost-effective platform for water splitting, paving the way for cheaper hydrogen production.
Researchers have demonstrated photochemical upconversion in a solid state, enabling potential innovations in renewable energy and water purification. The breakthrough could also enable targeted laser treatments for tumors and medical applications.
Researchers at West Virginia University have developed a technology that can capture carbon dioxide from the air of buildings and use it to produce methanol, a common chemical with numerous applications. The process is expected to increase the sustainable supply of methanol while removing greenhouse gases from the atmosphere.
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 from the University of South Australia have designed a self-sustaining solar-driven system that evaporates seawater to recycle it into freshwater, growing crops without human involvement. The vertical floating sea farm has several advantages over other designs, including low energy consumption and high food production.
Researchers have devised an efficient method of recovering high-purity silicon from expired solar panels, which can help meet the increasing global demand for electric vehicles. The new extraction method using phosphoric acid achieved a recovery rate of 98.9% and purity of 99.2%, comparable to existing methods.
Researchers have created a highly efficient and stable photoelectrode for water splitting using organic semiconductors. The new design overcomes the limitations of traditional inorganic semiconductor-based photoelectrodes, resulting in enhanced hydrogen production efficiency.
Tandem solar cells combining silicon and perovskite technologies achieve higher efficiencies while strengthening stability. The connection protects the frail perovskite solar cell from voltage-induced breakdown.
Researchers at Chinese Academy of Sciences Headquarters have developed flexible solar cells with efficiencies comparable to conventional solar cells. They achieved significant power conversion efficiency gains by optimizing the material composition and guest component location in ternary organic solar cells.
Researchers at Tokyo Institute of Technology have discovered a new strategy to stabilize the α-phase of α-FAPbI3, a promising solar cell material. By introducing pseudo-halide ions like thiocyanate into its structure, the team has successfully stabilized the α-phase, reducing its transition temperature and increasing its energy band gap.
By controlling the arrangement of multiple layers within crystals, researchers can tune the materials' optoelectronic properties and emit light of specific energies. This technique has significant implications for applications such as LEDs, solar cells, and lasers.
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 new study suggests that solar-powered irrigation systems could increase yields and profits for smallholder farmers in sub-Saharan Africa, addressing the region's high yield gap and food insecurity. The innovative system, developed by an international team of researchers, estimates a potential economic benefit of over USD 5 billion pe...
A recent publication in Science reports on improvements in silicon-perovskite tandem cells, achieving a record-breaking 32.5% efficiency. The development of these high-efficiency solar cells was led by Lithuanian researchers from Kaunas University of Technology.
A new MIT study reveals that soft technology features, such as permitting practices and supply chain management, contribute less than 15% to total cost declines in solar energy systems. Improving these processes could accelerate cost savings in the clean energy transition.
A new study from the University of Colorado at Boulder has developed an economical approach for producing green hydrogen, a precursor to liquid fuels. The method uses heat generated by solar rays to split molecules of water and carbon dioxide into hydrogen and carbon monoxide, which can be converted into fuels like gasoline and diesel.
Researchers have developed a highly efficient organometal halide perovskite photoanode that suppresses internal and external losses associated with photoelectrochemical water splitting, enhancing reaction kinetics. The new design achieves an unprecedented applied bias photon-to-current conversion efficiency of 12.79%.
Researchers found that six bat species exhibited lower activity levels at solar farms compared to control sites, highlighting the need for mitigation strategies. The study emphasizes the importance of considering ecological impacts in planning legislation and policy.
Researchers develop nanofilms that mimic the nanostructures of butterfly wings, creating vibrant colors without absorbing light. These films can be used on buildings, vehicles, and equipment to reduce energy consumption and preserve color properties, with potential applications in energy sustainability and carbon neutrality.
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...
Researchers at the University of Córdoba have designed a solar battery that can absorb light and store energy using a new material composed of 2D carbon nitride. This device combines optical simulations and photoelectrochemical experiments to achieve high performance, with potential applications in various fields.
Researchers at North Carolina State University have developed a new robot called RoboMapper that can conduct experiments more efficiently and sustainably to develop new semiconductor materials. The robot automates the process of testing multiple samples simultaneously, reducing time and energy consumption by nearly 10 times.
The Fengyun-4A satellite in collaboration with a machine learning model generated a detailed PV resource map for China, providing new insights into the country's solar energy potential. This advancement sets a new standard for solar resource mapping, empowering decision-makers to make informed choices for a sustainable future.
Researchers have demonstrated a method to power water remediation using renewable energy sources, including solar power. Through electrochemical separation and redox reactions, they successfully removed arsenate from wastewater.
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 discovered a close relationship between nuclear and electron dynamics, challenging the Born-Oppenheimer approximation. This breakthrough could lead to new ways to control and exploit molecular properties for solar energy conversion, quantum information science, and more.
Researchers developed a technique to enhance the stability of perovskite solar cells by using fluorinated aniliniums, avoiding progressive ligand intercalation. This approach achieved a certified quasi-steady-state power-conversion efficiency of 24.09% for inverted-structure PSCs.
Researchers investigated the diffusion lengths of charge carriers in metal oxides and found that they are poorly understood. The study analyzed ten metal oxide compounds and found that their mobilities were very low compared to conventional semiconductors. However, heat treatment improved mobility in some materials.
A team of researchers has designed an all-season thermal cloak that can cool electric vehicles by 8°C on hot days and warm them by 6.8°C at night without any external energy input. The cloak works through radiative cooling, using an effect called photon recycling to counteract temperature fluctuations during winter months.
The UK Research and Innovation has awarded £53 million in funding to six research centers to boost knowledge, create innovative green technologies, and reduce energy demand. The focus is on developing game-changing ideas to improve domestic, industrial, and transport energy systems.
Researchers at Helmholtz-Zentrum Berlin have achieved a record-breaking efficiency of 32.5% for their tandem solar cells, combining perovskite and silicon technology. The breakthrough was made possible by improved perovskite compounds and surface modification techniques.
Researchers at NUS have created a new type of solar cell with improved stability and efficiency, paving the way for cheaper and more durable energy solutions. The cells achieve a world record efficiency of 24.35%, making them suitable for large-scale commercialization.
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.
Researchers from Ben-Gurion University of the Negev have developed a new approach to understanding photovoltaic device performance under varying temperatures. Their findings suggest that thermoradiative and thermophotonic cells can efficiently convert sunlight into electricity even at high temperatures.
Researchers from UT Austin created a new composite material that efficiently converts low energy light to higher energy, with applications in bioimaging, solar panels, and night vision goggles. The breakthrough could reduce the size of solar panels by 30% and enable systems for autonomous vehicles and fog detection.
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 at Indian Institute of Science developed a novel thermal desalination system that uses solar energy to produce freshwater. The system is more energy-efficient and cost-effective than traditional methods, and can be adjusted to align with the sun's position during the day.
A New Jersey Institute of Technology research team has been awarded a $4.64 million grant to continue studying the Sun's explosive activity at Big Bear Solar Observatory. The team will use the observatory's unique imaging capabilities and stable seeing conditions to investigate solar phenomenon as activity on the Sun ramps up.
Researchers have discovered that certain soapstone and granite samples from Tanzania are well-suited for storing solar heat, featuring high energy densities and stability. These rocks show promise as a sustainable energy storage material for concentrated solar power generation and solar drying technology.
Perovskite photovoltaics are promising for generating solar energy due to their ability to be printed like newspapers and require less material than traditional technologies. However, these materials exhibit instabilities that can cause them to degrade quickly, hindering their commercial viability.
Long-duration energy storage (LDES) is crucial for US states with decarbonization goals to address variable energy generation and customer demands. LDES systems can store renewable energy until needed, providing a reliable solution for a decarbonized grid.
Researchers fabricated 2D perovskite solar cells based on molecular ferroelectrics, achieving the highest open circuit voltage and best efficiency among 2D Ruddlesden-Popper perovskite solar cells. The introduction of ferroelectricity improved charge transport and device performance.
Researchers at Brookhaven Lab used pulse radiolysis to study a key class of water-splitting catalysts, revealing the direct involvement of ligands in the reaction mechanism. The team discovered that a hydride group jumped onto the Cp* ligand, proving its active role in the process.
A study found that defects with deep energy levels deteriorate kesterite thin-film solar cell properties. The research team identified specific types of defects and proposed a method for preventing their formation. This could lead to improved efficiency for these cells.
A new study reveals that rooftop solar arrays can meet the entire electricity demand of up to 35% of US manufacturers, currently accounting for only 2.2% of the grid mix. The research investigates the feasibility of on-site solar panel installations across different regions and manufacturing sectors in the US.
New research suggests that households could break even on their solar panel investments by 2027, thanks to a steady decline in cost outlay and return on investment. The study also predicts that solar electricity will become a more competitive energy source, making it 40-50% cheaper by 2035.
Researchers at City University of Hong Kong have developed a multifunctional additive that improves the efficiency and stability of perovskite solar cells by modulating film growth. The additive reduces defects, leading to higher power conversion efficiency and lower energy loss.
Perovskite solar cells face stability issues that hinder their widespread adoption. Researchers from Surrey University aim to improve the design of these cells by stabilizing photoactive phases.
Researchers have developed an electrolyte to improve the efficiency of CO2 conversion into useful hydrocarbons. The study found that controlling the concentration of the electrolyte is crucial in regulating product formation, with too much potassium leading to clogage and reduced selectivity.
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.