Articles tagged with Photovoltaics
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.
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.
A UNIGE team analyzed the socio-economic impacts of 248 electricity transition scenarios on 296 European regions, finding that southern and south-eastern regions may be more vulnerable to negative effects. The benefits of a low-carbon electricity sector tend to concentrate in richer northern Europe.
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.
Organic solar cells fabricated with tin oxide exhibit high performance, surpassing current records. The design involves a conductive layer of tin oxide grown via atomic layer deposition, improving device stability and efficiency.
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 have identified a new degradation mechanism in organic solar cells involving twisting of polymer chains, which reduces efficiency. This discovery paves the way for more stable solar cells that can generate electricity from sunlight at scale.
Global experts urge a commitment to PV growth to power the planet, citing increasing acceptance and need for large-scale deployment. By 2050, 75 terawatts or more of globally deployed PV will be needed to meet decarbonization goals.
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 novel photoelectrochemical ultraviolet photodetector that can detect two types of ultraviolet light using a multilayered nanostructure. The detector's performance can be regulated through light intensity and external bias, enabling easy adaptation to environmental changes.
Researchers at Macquarie University have developed a microwave technology that improves solar cell production by reducing energy consumption and increasing efficiency. The new method allows for selective heating of silicon, making it easier to recycle and reuse components.
Newcastle University researchers have developed environmentally-friendly photovoltaic cells that harness ambient light to power IoT devices. The cells achieve an unprecedented power conversion efficiency of 38% and are non-toxic, setting a new standard for sustainable energy sources.
A comprehensive product stewardship scheme has been proposed to address the environmental impact of solar panel disposal in Australia. The plan includes recycling steps, serial numbers for tracking, and legislation to ensure environmentally friendly disposal.
Researchers at Waseda University developed a four-wheeled robot capable of sowing, pruning, and harvesting in dense vegetation, improving efficiency by 49% compared to manual control. The robot's advanced maneuvering system reduces damage to plants and increases farming productivity in various environments.
Researchers have developed a method to reduce the energy payback time of photoelectrochemical water splitting, making it more sustainable and competitive. The approach involves producing not only green hydrogen but also methyl succinic acid, which can be used as an intermediate product.
A team of researchers at Helmholtz-Zentrum Berlin has developed a new method for producing perovskite solar cells using a slot die coater, resulting in high-power conversion efficiencies. The best cells were scaled up to mini-module size and tested for outdoor stability, showing promising results.
Scientists from the University of Groningen have developed a theoretical framework to explain how charges move through organic solar cells. The study provides insights into the ultrafast charge transfer process, which is crucial for improving the material's efficiency.
Researchers at Swansea University have created a low-cost and scalable method to manufacture fully printable perovskite photovoltaics using carbon ink. The devices achieved similar performance to conventional gold electrodes, with power conversion efficiencies of up to 14%.
Researchers designed a novel porous insulator contact to reduce non-radiative charge recombination and improved power conversion efficiency. The study achieved an efficiency of up to 25.5% without sacrificing photocurrent transport.
Domestic solar panel manufacturing in the US can reduce greenhouse gas emissions by 30% and energy consumption by 13% compared to international trading partners. By 2050, US-made solar panels will be more efficient, reducing carbon footprint by 33% and using 17% less energy.
Research at Cornell University found that co-locating solar panels with commercial agriculture can improve power conversion efficiency and solar-panel longevity. Agrivoltaic systems offer increased passive cooling through taller panel heights, more reflective ground cover, and higher evapotranspiration rates.
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.
A novel deep learning-based forecasting model predicts uncertain parameters related to renewable energy sources, their energy demand, and market prices. The model demonstrates improved prediction accuracy and efficiency compared to existing methods.
Channeling ions into grain boundaries in perovskite materials improves the stability and operational performance of perovskite solar cells, paving the way for more efficient and practical solar cell technologies. This breakthrough finding may also inform the development of more efficient energy storage technologies.
Direct incorporation of a metasurface in a laser cavity enables spatiotemporally modulated laser pulses. Giant nonlinear saturable absorption allows pulsed laser generation via Q-switching process.
Researchers at the University of Texas at Austin developed a new method to create dust-resistant surfaces using nanocoining and nanoimprinting techniques. The resulting surfaces can clean themselves due to their tightly packed pyramid-shaped structures, which prevent dust particles from sticking to the material.
Researchers at Eindhoven University of Technology have developed a photodiode with sensitivity exceeding 200%, using green light and a double-layered cell design. This breakthrough enables the device to detect weak light signals, making it ideal for medical purposes, wearable monitoring, and machine vision applications.
Carolina researchers have engineered silicon nanowires that can convert sunlight into electricity, splitting water into oxygen and hydrogen gas. This innovative design enables the production of a greener alternative to fossil fuels, making it more competitive with traditional energy sources.
Researchers at the University of Rochester have developed a novel method to boost the light conversion efficiency of perovskites by 250 percent using substrates of metal and dielectrics. This breakthrough could lead to more efficient solar cells and detectors.
Researchers at UToledo discovered a way to enhance adhesion and mechanical toughness in perovskite solar cells using DPPP, improving durability and power conversion efficiency. The breakthrough allows for the commercialization of new photovoltaic technology to replace silicon and lower cost of solar electricity.
Researchers reveal thermal instability of halide perovskite solar cells due to surface treatment with large positively charged ions. However, their work also provides a direction for engineers to improve the stability of this technology, potentially leading to more efficient and stable solar technologies.
Researchers discuss the construction, properties, and applications of 2D/quasi-2D perovskite-based heterostructures. These heterostructures offer novel functionalities for photovoltaic solar cells, LEDs, and photodetectors.
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.
Researchers have visualized the structural dynamics of 2D perovskite materials under light-induced excitation, revealing a transient lattice reorganization towards a higher symmetric phase. The study demonstrates the potential to tune the interaction between perovskite lattices and light.
Researchers have developed a chemical variation that significantly improves the stability of perovskite thin films in solar cells, achieving efficiencies of up to 24.6%. The new coating, b-pV2F, wraps around individual microcrystals like a soft shell, reducing thermal stress and increasing efficiency.
A $2.3 million grant from the US Department of Energy funds a 'solar testbed' at I-79 Technology Park in Fairmont, supporting research on battery storage, grid integration, and cybersecurity. The project aims to assess solar panel health and monitor grid interactions with solar power.
Researchers from the University of Science and Technology of China revealed the point defect mechanism in antimony selenosulfide, leading to improved photovoltaic performance. The study used O-DLTS to detect defects driven by temperature and showed the formation and evolution of point defects through annealing.
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.
Researchers discuss non-fused ring electron acceptors (NFREAs) to improve organic solar cell performances, balance efficiency and cost, and provide guidance for material design. NFREAs simplify synthesis processes while achieving high reaction yields and planarity.
Researchers identify the (100) facet as prone to degradation, while the (111) facet is more stable and resistant to moisture and heat. By using facet engineering, they develop strategies to grow the stable (111) facet, leading to exceptionally stable perovskite films.
Chemists from Rice University and the University of Texas at Austin found that increasing charge-acceptor molecules on semiconducting nanocrystals can lead to reduced electron transfer rates in hybrid materials. The study highlights the importance of considering ligand-ligand interactions when designing light-activated nanomaterials fo...
Chung-Ang University researchers identify direct electron tunnelling as dominant mechanism of noise in organic photodetectors, enabling enhanced detection speed and improved image sensor performance. The discovery paves the way for miniaturized image sensors with curved designs and omnidirectional sensing capabilities.
A new form of thin-film device technology using alternative semiconductor materials could contribute to a more sustainable IoT. Wireless power harvesting from the environment using photovoltaic cells and RF energy harvesters is being explored.
Researchers developed a method to improve power conversion efficiency and stability of pure iodide and mixed-halide perovskites by using two alkylammonium halide modulators. This approach substantially reduces drops in power-conversion efficiency and retains about 80-90% of initial efficiencies after continuous operation.
Researchers have developed a novel near-infrared light detection method using core-shell lanthanide nanoparticles to convert weak near-infrared light to visible light with high efficiency. This achievement promotes the proposal of a new resource- and energy-saving near-infrared light detection method, improving optical sensor sensitivi...
Researchers at NREL have developed a new growth approach to manufacturing perovskite solar cells, yielding devices with high efficiency and excellent stability. The new method uses gas quenching to suppress phase segregation, resulting in wide-bandgap solar cells with efficiencies over 20% and operational stability.
Researchers from City University of Hong Kong developed a novel device-engineering strategy to suppress energy conversion loss in organic photovoltaics, achieving PCE over 19%. The discovery enables OPVs to maximize photocurrent and overcome the limit of maximum achievable efficiency.
Researchers at Exciton Science have created perovskite solar cells with 21% efficiency, the best results ever recorded for a non-halide lead source. The novel use of lead acetate enables scalable and industrial-scale manufacturing.
A team of researchers at KAUST has developed a new method to replace toxic chlorinated solvents with plant-derived alternatives in organic solar cell manufacture. The study reveals that terpene-based solvents can be used without affecting the light-capturing performance of the cells, resulting in an 85% lower carbon footprint.
Researchers have developed a new low-temperature deposition process that reduces the formation of detrimental gallium oxide in bifacial CIGS solar cells. This allows for improved energy conversion efficiency, with values of 19.8% for front illumination and 10.9% for rear illumination.
MIT engineers create ultralight fabric solar cells that can generate 18 times more power-per-kilogram than conventional solar cells, making them ideal for wearable power fabrics or deployment in remote locations. The technology can be integrated into built environments with minimal installation needs.
Researchers develop low-cost and eco-friendly method for high efficiency CIGSSe solar cells, achieving power conversion efficiency larger than 17%, by using aqueous spray deposition in air environment.
A study by UPV/EHU's Ekopol and Life Cycle Thinking groups found that an alternative community lifestyle can reduce energy consumption due to the significance of energy used in goods and services. The energy footprint per inhabitant of Errekaleor neighbourhood is 24% lower than that of ACBC.
Researchers at Oxford University and Exciton Science created stable perovskite solar cells with comparable stability to commercial silicon photovoltaics. The new synthesis process led to thin films of greater quality, reduced defects, and enhanced stability.
Researchers found that red light is more efficient for growing plants while blue light is better suited for solar energy production. This breakthrough could guide global interest in agrivoltaics and identify potential applications for those systems.
Concordia researchers identify vulnerabilities in smart inverters to cyberattacks, including reconnaissance, replay, DDoS, and Man-in-the-Middle attacks. These attacks can disrupt energy flow and create power oscillations, severely impeding microgrid functionality.
Researchers found that optimizing solar panel spacing and direction can increase energy production by 2-3% through natural convection. The study's model improves estimates of solar plant efficiency, paving the way for more accurate cost predictions.