Articles tagged with Solar Energy
Researchers have developed a new method to visualize the quantum mechanical wave function of excitons in organic semiconductors. This understanding is essential for developing more efficient materials with organic semiconductors. The technique, known as photoemission exciton tomography, provides insights into the behavior of excitons i...
Scientists at the University of Cambridge discovered that making solar cells super-efficient is harder than thought, but found alternative ways to improve energy capture. They proposed flexible, semi-transparent panels that can fold up and be integrated into various settings.
Researchers developed a machine learning method to estimate solar radiation components using sunshine duration data from over 2,453 weather stations in China. The approach leverages data augmentation and LightGBM machine learning model for accurate predictions, making it universally applicable.
Citizens in Denmark, Germany, Poland, and Portugal prefer decentralized renewable energy systems with high rooftop solar shares. They value low electricity prices and reduced dependence on imports over technology preferences.
Kobe University scientists develop material guideline for high-efficiency PV cells, OLED displays and anti-cancer therapies by understanding energy transfer between molecules. The research enables aligned electron spin states to combine low-energy photons into a high-energy photon.
A Dartmouth Engineering-led study discovered a new high-performance solar absorber material that is stable and earth-abundant. The researchers used a unique high-throughput computational screening method to evaluate approximately 40,000 candidate materials, leading to the discovery of the Zintl-phosphide BaCd2P2.
A team of UCF researchers has received a $1.5 million grant from the US Department of Energy to develop a novel metallization process for solar cells. The goal is to increase efficiency and lower production costs, making solar energy more accessible.
Scientists created a method to study variations in power output from solar PV plants over time, accounting for distinct power fluctuations across different geographical areas. The grid integration challenge arises when including variable renewable energy sources like wind and solar into the power grid.
EPFL researchers have discovered that nanoscale devices harnessing the hydroelectric effect can harvest electricity from the evaporation of fluids with higher ion concentrations than purified water. This breakthrough reveals a wide range of applications for hydrovoltaic devices, including powering sensors and generating clean water.
The Zero-Energy Switchable Radiative Cooler (ZESRC) is a temperature-responsive solution that balances building temperatures sustainably. Field experiments demonstrate its effectiveness across seasons, reducing energy consumption by 14.3% compared to other devices.
The National University of Singapore (NUS) team engineered a new cyanate-integrated perovskite solar cell that achieves a certified world-record power conversion efficiency of 27.1%, surpassing other multi-junction solar cells. The triple-junction perovskite/Si tandem solar cell remains stable and efficient even after extended testing.
A team of experts at PNNL developed a new tool that sorts and prioritizes cyber threats on the fly, giving grid operators a clear blueprint to identify and address the biggest threats first. The approach uses hybrid attack graphs and optimization to reduce the number of potential attacks from thousands to fewer than 100.
A team of researchers from Pusan National University developed a method to enhance the stability of perovskite solar cells using crown ether B18C6. This approach resulted in improved power conversion efficiency and resistance to moisture, addressing key issues such as lead leakage and degradation due to environmental factors. The study...
A team of researchers has discovered ways to optimize efficiency and control degradation in perovskite solar cells by engineering their nanoscale structure. The study provides new insights on how to make high-efficiency perovskite solar cells and offers a roadmap for improving their performance.
Researchers at UNIST have developed a scalable and efficient photoelectrode module for green hydrogen production, overcoming challenges of efficiency, stability, and scalability. The team's innovative approach achieved unprecedented efficiency, durability, and scalability in producing green hydrogen using solar energy.
Researchers developed innovative Au@Cu7S4 yolk@shell nanocrystals capable of producing hydrogen when exposed to both visible and NIR light, achieving a peak quantum yield of 9.4% in the visible range and 7.3% in the NIR range for hydrogen production.
A team led by Prof. Wolf Gero Schmidt used Hawk supercomputer to study how strategic impurities in solar cells can improve performance. They discovered that certain defects can improve exciton transfer, leading to more energy captured. This breakthrough could lead to more efficient and climate-friendly energy production.
The NREL-led workshop emphasizes the importance of mitigating degradation rates for clean technologies, which will play a crucial role in meeting future energy needs. The researchers recommend increasing transparency and standardization of reliability data, as well as developing standards for various renewable energy technologies.
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 new study suggests China will need to build eight to ten times more wind and solar power installations than in 2022 to achieve carbon neutrality by 2060. The report also highlights the importance of coordinating land use policies nationwide, with a focus on areas within 100 miles of major population centers.
A team at TU Graz has developed a parabolic trough collector with cost-effective photovoltaic cells that generate both solar power and thermal energy. The innovation uses industrial production methods and optimises cooling to increase usability of waste heat.
A new study shows that UK solar parks, if managed correctly, can support insect pollinators such as bees and butterflies. The availability of a diverse range of flowering plant species within the solar farms is crucial for increased pollinator abundance and biodiversity.
A groundbreaking research breakthrough has led to the development of the world's most efficient quantum dot (QD) solar cell, retaining its efficiency even after long-term storage. The newly-developed organic PQD solar cells exhibit both high efficiency and stability simultaneously.
Physicists at Paderborn University have developed a new solar cell design using tetracene, which significantly increases efficiency. The introduction of defects in the organic layer accelerates exciton transfer to silicon, reducing energy losses and increasing overall yield of usable energy.
Researchers at the University of Gothenburg discovered how proteins deform to create efficient transport routes for electrons, powered by solar energy. This finding could lead to more efficient solar cells and batteries.
A Princeton-led study found that most common clean energy procurement strategies are ineffective in reducing long-term emissions in the US. However, one approach called temporal matching can have a substantial effect when companies purchase clean energy hourly to match their real-time energy consumption.
Researchers developed a chemically protective cathode interlayer using amine-functionalized perylene diimide, which stabilizes perovskite solar cells. The novel solution-processed PDINN cathode interlayer achieved impressive performance with over 81% retention and record-high bias-free solar hydrogen production rate.
The AMS 104th Annual Meeting will focus on climate change research, mitigation, and adaptation, with key discussions on overcoming barriers to implementation. The meeting features numerous scientific conferences and symposia covering topics like climate variability, air pollution meteorology, AI for environmental science, and more.
A recent study reveals that solar energy facilities planted with native grasses and wildflowers can rapidly support thriving insect populations. Total insect abundance tripled at the studied sites, providing additional pollination services to adjacent agricultural fields.
Engineers have discovered a method to increase the stability of perovskite solar cells using bulky additives, which could enable the production of cheaper solar panels. The study suggests that larger molecules with specific configurations are most effective at preventing defects in the cells.
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.
The report highlights key applications and pathways to commercialization for emerging PV technologies, including new materials and device concepts. It also discusses strategies to exceed current limits in solar PV energy conversion and challenges facing efforts to scale up globally.
A KAIST research team developed a new conductive polymer material that achieved both high electrical performance and elasticity, introducing the world’s highest-performing stretchable organic solar cell. The team built a device that can be stretched up to 40% during operation, demonstrating its applicability for wearable devices.
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 new study finds that building solar farms in arid regions can effectively reduce greenhouse gas emissions, making it a more viable solution for addressing the climate crisis. By contrast, natural forests have a limited impact on carbon dioxide absorption due to their low albedo and high energy absorption rates.
Researchers propose optimising campus solar PV system to support over 200 electric vehicles with free or nominal charging facilities. This could reduce annual electricity costs by more than 9% while helping lower peak power demand by at least 12%.
Researchers found that compound energy droughts can occur nationwide, with varying frequencies and durations across regions. Understanding these droughts will help grid planners prepare for energy storage needs and inform deployment of long-duration energy storage projects.
Scientists at Linköping University have created stable and environmentally friendly organic solar cells by incorporating untreated kraft lignin into the electron transport layer. This innovation improves the overall efficiency and reliability of organic solar cells, paving the way for a more sustainable future.
A new relationship between the Sun's magnetic field and its sunspot cycle has been discovered, enabling scientists to predict when the peak in solar activity will occur. The analysis indicates that the maximum intensity of solar cycle 25 is imminent and likely to occur within a year.
Photovoltaic fields can mitigate climate change faster than afforestation by 50 times in semiarid land, while still offering benefits in humid lands. Forests provide additional ecosystem and social services beyond climate regulation.
Northwestern University researchers have created a new perovskite solar cell that achieves a National Renewable Energy Lab certified efficiency of 25.1%, surpassing earlier records. The breakthrough is made possible by a combination of two molecules, one addressing surface recombination and the other disrupting interface recombination.
A new solar-powered device can turn polluted water into clean drinking water and hydrogen fuel, addressing global energy and water crises. The device uses solar power to split water molecules, producing clean water and hydrogen with minimal energy loss.
Researchers developed indoor solar panels to power smart home devices, identifying efficient PV materials and minimizing heat production. Gallium indium phosphide shows promise but is expensive, while perovskite minerals and organic films offer a cost-effective solution.
The Beckman Institute's new Electrolab robot automates electrochemical experiments and data analysis, reducing manual effort and time for researchers. The instrument can explore alternative power sources and analyze chemical reactions to combat climate change.
A UNIGE team has developed a super-model to simulate the spread of three green technologies in Swiss municipalities by 2050. The results show that Switzerland is unlikely to achieve zero net carbon emissions by 2050 without significant policy changes, highlighting the need for increased efforts and updated policies.
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...
A recent KAUST study used satellite data to investigate the effects of managed vegetation on surface temperature in arid regions. The results showed that vegetation can reduce daytime temperatures by up to 4 degrees Celsius compared to bare soil, providing an extra cooling effect on hotter days.
A survey of social media posts suggests that people are more positive about nature-based efforts to protect carbon-storing ecosystems than human technological solutions. The study found that tree-planting solutions, such as afforestation, received the most approval, while geoengineering was associated with negative sentiments.
Researchers estimate that 5% of Europe's freestanding single-family homes could become economically self-sufficient in 2050. While some regions have high potential for self-sufficiency, becoming fully off-grid is not the most economic choice due to higher costs.
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.
A new database containing thousands of solar mirror samples offers valuable insights into degradation trends over decades. The Solar Mirror Materials Database (SMMD) provides natural and accelerated exposure data for accelerating test development, design optimization, and manufacturing guidance.
Researchers at Osaka University use a robotic system to automate key experimental processes, accelerating the search for new materials. They evaluate 576 thin-film semiconductor samples using photoabsorption spectroscopy, optical microscopy, and time-resolved microwave conductivity analyses.
The Beckman Institute's DROPLETS project uses microdroplets to catalyze electrochemical reactions, producing clean hydrogen and sequestering carbon dioxide. The project aims to lay out a foundation for a sustainable clean energy future.
Researchers at ETH Zurich have developed a novel 3D printing methodology to manufacture porous ceramic structures for efficient solar radiation transport, resulting in twice as much fuel production as uniform structures. The technology has the potential to improve sustainable aviation fuels' economic viability.
Researchers have developed a new synthesis method that controls the temperature and duration of the crystallization process to produce 2D halide perovskite layers with ideal thickness and purity. This breakthrough improves the stability and reduces the cost of solar cells, making them a viable option for emerging technologies.
A six-year study of a satellite found that low-cost solar panels can withstand harsh space conditions and generate power, opening the door to large-scale solar farms in orbit. The technology has been developed by researchers at the Universities of Surrey and Swansea.
The CityU innovation has dramatically enhanced the thermal robustness of perovskite solar cells, retaining over 90% of efficiency even under high temperatures. This breakthrough could significantly broaden the utilisation of these cells and contribute substantially to combating the global climate crisis.
A new study predicts that solar power will dominate the global energy mix by the middle of this century due to rapid innovation in solar technology. However, four barriers, including stable power grids and political resistance, could hamper this transition, highlighting the need for policies to overcome these hurdles.
The MIT team designed a train-like system of reactors that harnesses the sun's heat to produce clean hydrogen fuel with up to 40% efficiency. This could drive down costs and make solar thermochemical hydrogen (STCH) a scalable option for decarbonizing transportation.