Articles tagged with Photovoltaics
Researchers found agrivoltaics significantly impacted air temperatures, direct sunlight and atmospheric demand for water, leading to improved crop growth and reduced water loss. The system also increased energy production efficiency by cooling solar panels with crops underneath.
A new algorithm developed by University of Waterloo researchers increases the efficiency of solar photovoltaic systems and reduces power waste, with potential savings of up to 138.9 kWh/year for small home-use systems. The technique could lead to substantial reductions in emissions from large-scale solar farms.
A team of researchers at the University of California, Berkeley, has developed a microwave-sized water harvester that can pull water directly from the air 24/7. The harvester uses a highly porous metal-organic framework to capture and condense water molecules from ambient air, even in low-humidity conditions.
Researchers at Tohoku University developed a new method to quantify the efficiency of crystal semiconductors, a crucial step towards creating more efficient light-emitting diodes (LEDs) and solar cells. The method uses photoluminescence spectroscopy to detect the emitted light energy, providing a unique indicator of the crystal's quality.
Researchers at Columbia University have developed a new design rule for generating excitons in organic molecules. This innovation enables the creation of more efficient solar cells and opens up new avenues for applications in fields such as photocatalysis, sensors, and imaging.
A Chinese-German team developed a way to boost electric conductivity of organic solar cells, increasing their performance. By doping metal oxide interlayer with modified organic dye, both efficiency and stability were improved.
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.
Heidelberg University physicists develop a novel spectroscopic method to map the energetic landscape inside solar cells based on organic materials. This technique enables scientists to study physical principles and better understand processes such as energetic losses with extreme precision.
The University of Toledo has been awarded a $7.4 million contract to develop solar technology that is lightweight, flexible, highly efficient and durable in space. The goal is to provide power for space vehicles using sunlight, reducing the need for liquid fuels and battery storage.
Agricultural lands are the most productive places for solar power, according to an Oregon State University study. The researchers found that converting less than 1% of land to solar panels would be sufficient to fulfill global electric energy demand.
Researchers at Siberian Federal University and Royal Institute of Technology discover palladium diselenide, a promising material for more efficient solar cells. The material can absorb solar energy more efficiently than silicon-based materials, increasing the efficiency of solar cells.
Current artificial leaves convert only 15% of inhaled CO2 into fuel and release 85%, while new bipolar membrane technology increases efficiency to 60-70%
Agrivoltaics combines solar panels and agriculture to create a more efficient and sustainable system. This practice reduces evaporation of irrigation waters in summer and increases photosynthesis, leading to improved crop growth and reduced water usage.
Researchers from the University of Warwick have discovered that deformations and defects in solar cell structures can prevent photo-excited carriers from recombining, leading to enhanced conversion efficiency. This finding has potential applications in improving UV light sensor sensitivity and increasing solar cell efficiency.
A team of engineers at Washington University in St. Louis has found a more stable, less toxic semiconductor for solar applications, made up of potassium, barium, tellurium, bismuth and oxygen (KBaTeBiO6). The new compound has a band gap of 1.88 eV, which is close to the halide perovskites, making it promising for solar cell applications.
A study by KU Leuven researchers has successfully stabilized perovskites, a promising type of semiconductor material for harnessing solar energy. By binding the crystals to a glass substrate and heating them to high temperatures, the black perovskite state is achieved, enabling efficient sunlight absorption and electricity generation.
Researchers from UCLouvain have discovered a new material, LiTi2(PS4)3 or LTPS, which shows the highest lithium diffusion coefficient ever measured in a solid. This discovery is an important step towards developing all-solid-state batteries with improved performance.
Researchers discovered 2D perovskite materials with metal-like conductive edges and insulating cores, improving optoelectronic performance. The findings boost the potential of these materials for innovative solar cells and nanoelectronics.
Researchers at KAUST have developed a synthetic approach to generate homogeneous and defect-free crystals that could fast-track the commercialization of perovskite solar cells. The new single-crystal films exhibit lower defect density and higher charge-carrier diffusion lengths, leading to high-quality solar cells with a maximum power-...
A multifunctional device captures heat from photovoltaic solar panels to produce fresh water, exceeding traditional solar stills' output. The device's electricity output remains unaffected, demonstrating a promising solution for sustainable global development.
A team of researchers at HZB has investigated the fundamental photochemical processes around metal atoms and its ligands in transition-metal dyes. They found that charge carriers are not spatially separated as previously assumed, but rather undergo a rapid recombination process.
A team of UT Austin chemists has received a $1 million grant to develop an innovative new coating for silicon-based solar cells that could increase their efficiency by up to 20%. The coating uses organic dyes to convert more sunlight into electricity, reducing heat losses and energy inefficiencies.
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 have demonstrated a method for getting high-energy photons to kick out two electrons instead of one, potentially breaking the theoretical solar-cell efficiency limit. The new approach could add several percentage points to the maximum output of conventional silicon cells.
Researchers at Aarhus University have developed an historically accurate solar energy model with global, regional and local level performance data made available via open license. The model will help in optimizing future sustainable energy systems by analyzing photovoltaic installations.
Scientists at the University of Delaware and Georgia Tech have won a grant to develop a new approach for improving the efficiency of PERC cells, which are designed to increase electricity generation in solar panels. The team aims to use sulfur and selenium to create more efficient silicon solar cells with improved voltage.
The RoboBee has successfully flown solo for the first time, with a wingspan of four wings allowing it to lift off without additional power. The vehicle's weight is 259 milligrams, making it the lightest untethered flight ever achieved.
Researchers at University of Surrey have developed a tin-based perovskite solar cell with 50% less lead, improving efficiency and reducing toxicity. The technology allows for affordable, flexible, and thin solar panels using low-cost materials.
Researchers developed a simpler approach to creating multi-junction solar cells using intermetallic bonding, avoiding significant expense and complexity. The technique enables the creation of high-efficiency solar cells with lower production costs.
Research into phosphorene nanosheets has improved the potential of perovskite solar cells by increasing their electricity production efficiency by 2-3%. This breakthrough is significant as it could lead to more efficient and potentially cheaper solar cells, paving the way for a more sustainable future.
The new software can simulate a year's worth of grid interactions in under five minutes, making it easier for utility companies to install rooftop solar panels. This is faster than previous models that took days or even weeks to run a single scenario.
Researchers successfully simulated real-world conditions to assess perovskite solar cell performance. The study found that temperature and irradiance variations have a minimal impact on efficiency, with slight decreases during the day but recoveries at night.
Researchers discovered a novel nanotube material that generates electricity through the photovoltaic effect, outperforming existing materials by an order of magnitude. This breakthrough could lead to more efficient solar panels and advanced optical sensors for applications in astronomy and self-driving cars.
A protective layer of epoxy resin helps prevent lead leakage from perovskite solar cells, outperforming rival materials under various weather conditions. The 'self-healing' property of the polymer limits lead release when damaged, making it a strong candidate for commercial viability.
Researchers found that using a binary solvent mixture can improve the efficiency of polymer solar cells. By varying the casting solvent, they were able to control the molecular organization and nanoscale morphology of fluorinated non-fullerene acceptors, resulting in higher power conversion efficiencies.
Researchers at Kyoto University have made significant advancements in dye-sensitized solar cells by introducing a new molecular dye that enhances power conversion efficiency to 10.7%, surpassing previous records. This breakthrough has the potential to revolutionize the field of sustainable energy.
A new hybrid technology called Optiverter combines photovoltaic power optimizers and grid converters to maximize energy harvest from PV modules. The Optiverter ensures maximum energy production even in heavy or opaque shade, making it a significant improvement over current technology.
Researchers discovered that adding cesium and rubidium to the synthesis process makes the resulting solar cell more chemically homogeneous and facilitates its formation. This understanding will illuminate future work in developing more efficient halide perovskite solar cells.
Researchers from KAUST have exploited inkjet printing to generate high-efficiency solar cells, replacing inorganic semiconductors with lightweight and flexible organic materials. The technique allows for customized designs, rapid design changes, and low-cost manufacturing, making it suitable for a variety of applications.
Researchers found highly efficient triplet pair state separation in polycrystalline films of dibenzopentalene derivatives, exceeding 100% yield. This breakthrough suggests feasibility of converting correlated singlet excited states to two free triplets efficiently for organic solar cells.
Researchers at Simon Fraser University developed a theory that predicts maximum efficiency and minimal energy loss in molecular machines. By manipulating DNA hairpins, they demonstrated a strategy to optimize nanomachines, which could lead to significant advancements in fields like computer chips, solar cells, and biotechnology.
Researchers at Colorado State University have found that adding selenium to cadmium telluride thin-film solar cells increases their efficiency by overcoming atomic-scale defects. The discovery could lead to more widespread and affordable solar-generated electricity.
Researchers from Fujun Zhang's group have reported ternary polymer solar cells with 16.27% efficiency, surpassing binary systems without solvent additives. The addition of a third component enhances photon harvesting and optimizes exciton distribution, paving the way for industrialization of organic photovoltaics.
A breakthrough in a new material called a tandem perovskite solar cell has been achieved, bringing efficiency to about 23%, compared to silicon panels at 18% efficient. The goal is to make cheaper and more efficient solar cells that could replace silicon photovoltaic technology.
Researchers at Skoltech have developed new perovskite-inspired semiconductors with enhanced light-conversion efficiency of over 24% for solar cells. The materials overcome toxicity and stability issues by introducing bismuth and antimony halides, exhibiting record-high performance in solar cells.
Researchers discovered that adding fluoride to perovskite leaves a protective layer, increasing its stability and solar cells' efficiency. The study achieved an efficiency of 21.3%, exceeding previous records by up to 24%.
Researchers have uncovered details of microalgae's light-harvesting system, which is up to 95% efficient, using advanced mass spectrometry techniques. This breakthrough could lead to the development of more efficient organic solar panels, increasing energy efficiency and reducing environmental impact.
Researchers at the University of Bath have successfully waterproofed perovskite solar cells using a graphite coating, enabling the direct generation of clean hydrogen fuels from sunlight. This breakthrough could lead to more affordable and sustainable solar energy solutions.
A new device has been demonstrated that can generate a measurable amount of electricity by leveraging the temperature difference between Earth and space. The device, which uses an infrared photodiode pointed towards the sky, produced 64 nanowatts per square meter, a tiny but promising amount of power.
Research suggests that US schools can harness the power of solar panels to reduce their energy bills and carbon footprint. The study found that schools in sunny states like Texas, California, and Florida have the greatest potential for generating electricity from solar panels on school rooftops.
Researchers at NYU Tandon School of Engineering have discovered a method to make organic solar panels more robust by removing electron-accepting molecules from the top surface. This technique enhances the durability of organic solar cells, allowing them to function under water without encapsulation and resist degradation from oxygen an...
Researchers developed stable inorganic perovskite semiconductors at moderate temperatures, enabling integration into thin-film solar cells. The optimized CsPbI3 layers showed an initial efficiency of over 12% and stable performance for over 1200 hours.
The researchers have fabricated an organic semiconductor pn junction with high crystallinity using molecular beam epitaxy, allowing for efficient electron and hole delocalization. This technology enables the realization of new concept organic solar cells with high energy conversion efficiency.
Scientists have discovered that caffeine can improve the performance and thermal stability of perovskite solar cells, increasing their efficiency from 17% to over 20%. The unique molecular structure of caffeine allows it to interact with perovskite precursors, giving this technology an edge on the market.
Scientists at Rice University and their collaborators have discovered coal-derived 'dots' that are effective antioxidants for people who suffer traumatic brain injuries, strokes or heart attacks. The biocompatible dots can quench oxidative stress and protect cells from damage, offering a potential treatment option.
Ten ASU engineering faculty members have received NSF CAREER Awards to fund their research projects, totaling $5 million over five years. The awards support various specialties, including nanoscale assembly and solar energy conversion.
Researchers improved mixed tin-lead perovskite solar cells using guanidiinium thocyanate, enhancing carrier lifetimes and optoelectronic properties. This led to all-perovskite tandem solar cells achieving efficiencies of up to 25% with over 88% efficiency maintained after 100 hours of continuous operation.
A study by University of Kent researchers found a direct correlation between increasing solar panel demand and rising silver prices, with the latter accounting for 6.1% of solar panel cost.
A collaboration of researchers from ICIQ and ICMAB-CSIC investigated the impact of changing Hole Transport Materials in perovskite solar cells. They found that the surfaces and interfaces created in the solar cell stack have a crucial role in functional device performances.
Researchers at the Center for Self-Assembled Organic Electronics will integrate chemical synthesis, theory, and simulations to develop next-generation materials capable of converting sunlight into electricity. The goal is to create lightweight and flexible solar cells that can be deployed in various environments and scenarios.