Articles tagged with Photovoltaics
Researchers have developed a new type of solar cell that uses a binary ionic liquid electrolyte, achieving a record 7.6% light-conversion efficiency and stability in warm climates. The solvent-free design also enables the construction of flexible and lightweight devices.
Researchers have developed a new nanocomposite material that outperforms individual components, offering enhanced solar cell efficiency and potential applications in energy technologies.
The U.S. Department of Energy has awarded a grant to Adam Moule, assistant professor at UC Davis, to study ways to assemble thin layers of organic polymers into flexible panels for more efficient solar cells. The goal is to reduce costs and increase power output, with potential prototype development by 2015.
Researchers at University of Copenhagen have discovered a new material that can convert up to 30% of solar energy into electricity, twice the current conversion rate. The use of nanotechnology reduces production costs and minimizes energy loss in solar cell transportation.
The National Institutes of Health has awarded Clemson University researchers nearly $1 million to develop polymer dot nanoparticles for tracking single molecules in live cells. This technology could help determine the body's defenses against viruses and bacteria, as well as pinpoint cancer cells for more effective treatment.
Leading experts in organic solar cells have expressed concern over the field's reputation being damaged by reports of unrealistic results. The experts call for independent verification and accurate reporting to ensure the success of OSCs.
Researchers at Durham University are developing light-absorbing materials for thin-layer solar photovoltaic (PV) cells to convert light energy into electricity. The goal is to make solar panels more affordable and increase the use of solar power.
Silicon nanoparticles can significantly enhance the performance of solar cells by improving power output and reducing heat. By integrating a high-quality film of silicon nanoparticles onto silicon solar cells, researchers achieved a 60% improvement in power performance in the ultraviolet range of the spectrum.
Researchers at Ohio State University have developed new pink dye-sensitized solar cells with half the efficiency of commercially available silicon-based solar cells, but at one quarter of the cost. The new materials use complex metals and novel particle shapes to boost electricity production.
A University of Delaware-led team achieved a record-breaking combined solar cell efficiency of 42.8 percent from sunlight, surpassing the current record of 40.7 percent. The innovative technology incorporates spectral splitting optics with high-performance crystalline silicon solar cells.
A new tandem organic solar cell has been developed with increased efficiency of six and a half percent, marking the highest level achieved for solar cells made from organic materials. The discovery utilizes semiconducting polymers recognized by the Nobel Prize in Chemistry, which promises to be less expensive to produce.
Rice University scientists have developed a breakthrough method for producing molecular specks of semiconductors called quantum dots, which could lead to better and cheaper solar energy panels. The new chemical method produces four-legged cadmium selenide quantum dots with over 90% tetrapod structure.
A recent breakthrough in solar cell technology has shown a 16-fold enhancement in light absorption, boosting efficiency from 8-10% to 13-15%. This improvement could make solar energy more affordable for homeowners, with the price of an installed system potentially falling by up to AUD$5,000.
Researchers have developed unique three-dimensional solar cells that capture nearly all of the light that strikes them, increasing efficiency and reducing size, weight and mechanical complexity. The new cells could also enable improvements in photovoltaic coating materials and change the way solar cells are designed.
Scientists at UTMB and University of Michigan develop direct electrical link between nerve cells and photovoltaic nanoparticle films, enabling light-stimulated nerve-signaling devices. This breakthrough could lead to creation of a nanoparticle-based artificial retina with unprecedented flexibility, compactness, and reliability.
New columnar discotic liquid crystals stabilized by hydrogen bonds exhibit highly stable mesophases and ease of processing, making them suitable for applications such as solar cells. The research demonstrates a synergy between bonding interactions to achieve well-ordered aggregates.
Arizona State University has received a $1.1 million grant from the National Science Foundation to develop innovative nanotechnology solutions for solar energy. The team aims to create tiny devices that can harness light energy more efficiently and convert it into electricity.
Georgia Tech researchers have developed a self-cleaning surface inspired by the lotus plant to improve photovoltaic arrays and micro-electromechanical systems (MEMS). The unique surface combines nano- and micron-scale structures with a waxy coating, allowing water and dirt to bead up and roll off instantly.
The Department of Energy's Lawrence Berkeley National Laboratory has won four prestigious R&D 100 Awards for its innovative technology advances, including a carbon-measuring instrument, high-efficiency solar cells, and neutron generators. These awards recognize the lab's efforts to enhance energy, economic, and national security.
Rutgers-Newark Chemistry Professor Elena Galoppini and her team have received a $1.3 million NSF grant to develop new solar cells that harness organic materials and nanoparticles. The research aims to create more efficient methods of converting sunlight into electricity.
Researchers create atomic force microscopy (AFM) probe to actively initiate chemical reactions on surfaces, increasing spatial resolution to one nanometer scale. This technique has potential applications in designing more efficient catalysts and solar cells, as well as refining chemical sensor technology.
Researchers at Carnegie Mellon University discovered a way to create polymers that can conduct electricity by growing very pure, single RRP chains. The study shows that the nanostructure of these plastics enhances their ability to conduct electricity, and that increasing the width of RRP nanofibrils exponentially increases charge carri...
RIT scientist Ryne Raffaelle's $847,109 grant will develop nanostructured materials to enhance solar cell absorption and conversion rates. The project aims to improve current technology and lay the foundation for long-term improvement in solar energy use.
Researchers at Imperial College London suggest that photovoltaics could match and exceed current nuclear output by 2023, with potential to produce 12 gigawatts of electricity. The UK's decision to halt solar panel installations is attributed to a pro-nuclear bias in scientific and government establishments.
Researchers at Penn State have developed titania nanotube dye sensitive solar cells with a 3% initial conversion rate, which they aim to increase to 15% through optimization. The cells use an easier fabrication system than conventional silicon solar cells and have shown promise in producing more electrons that do not recombine.
Scientists discover carrier multiplication occurs in nanocrystals of various compositions, including cadmium selenide, boosting photovoltaic technologies. The effect relies on strong electron-electron interactions and can enhance the production of hydrogen through photo-catalytic water splitting.
Researchers have developed a novel solar antenna that combines antenna functions and solar cells on a single surface, reducing weight and increasing efficiency. The technology has the potential to power homes and send/receive signals, improving data gathering capabilities in remote regions.
The researchers have developed two rapid-solution synthesis methods that can produce robust, water-dispersible quantum dots for bioimaging and organically soluble quantum dots ready for sequestration into a polymer host. The new synthesis methods are scalable and can be used to produce large quantities of quantum dots.
The Global Climate and Energy Project has awarded over $11 million in research grants to five institutions, including Stanford University. The grants will support studies on solar cells, fuel formulations, and carbon capture technologies to reduce greenhouse gas emissions.
Engineers develop optoelectronic tweezers that can manipulate large numbers of single cells and particles, offering a practical advantage over existing methods. The device uses a photoconductive surface and light-emitting diode to create an electric field for particle manipulation.
A new study suggests that intense light exposure in photovoltaic material a-Si:H leads to undesirable defects by creating silicon dihydride structures. Researchers propose potential solutions, such as adding impurities to block the issue, which could improve solar cell performance and efficiency.
Researchers have developed a new type of battery that uses tritium to generate electricity, potentially leading to the creation of long-lasting devices. The battery's staying power is tied to the enduring nature of its fuel, which releases electrons through beta decay.
Researchers at Georgia Tech have developed a new approach to creating lightweight organic solar cells using pentacene, converting sunlight into electricity with high efficiency. The cells' flexibility and minimal weight make them suitable for powering various devices, from RFID tags to electronic devices.
The von Liebig Center has awarded six grants totaling $1.2 million to UC San Diego engineers to commercialize cutting-edge technologies. These projects focus on improving cell phone camera capabilities, developing a video instant-messaging system for emergency responders, and enhancing solar energy efficiency.
Chalmers University and Konarka Technologies partner on third-generation photovoltaic products, enabling commercialization of flexible plastic-based solar technologies. This collaboration strengthens Konarka's intellectual property portfolio and enhances Chalmers' research capabilities.
Researchers at Ohio State University have created hybrid materials that are virtually defect-free, paving the way for ultra-efficient electronics, solar cells and LEDs. The new technology could lead to faster, less expensive computer chips and bridge the gap between traditional silicon and light-related technologies.
A new semiconductor material can lead to solar cells with higher efficiency, while a study on magnetic memory devices suggests they could speed up by a factor of 1000. Researchers also found that certain interactions between molecules can create negative friction, which could have applications in fields like photosynthesis and nanoscal...
Researchers at Ames Laboratory are developing new solar cells that can withstand the degrading effects of sunlight. By understanding the atomic origins of this problem, they hope to create materials with improved stability and efficiency. The team's three-step rebonding model offers a promising solution to this challenge.
Researchers create alloy of indium gallium nitride that corresponds to the entire solar spectrum, allowing for more efficient solar cells. The alloy's defect-tolerant properties hold promise for improved performance in solar cells.
Researchers at the University of Houston are developing methods to manufacture huge solar cell arrays on the moon using materials from lunar soil. The goal is to generate enough electricity to supply a lunar base or colonies, as well as beam electricity back to Earth for use in local grids.
A lunar solar power system, proposed by Criswell, could supply up to 20 terawatts of electricity to Earth, enough for a population of 10 billion. The system would harness just one percent of the moon's solar power and beam it back to receivers on Earth via microwave beams.
Researchers have developed nanoparticles that can absorb all visible light but reject invisible light, increasing the efficiency of solar cells. This technology has the potential to make solar energy dirt cheap to produce and competitive with fossil fuels.
Chemical engineers have developed a novel process to grow crops of nanowires, which could lead to improved design of advanced military and space gear, fuel cells, sensors and solar devices. The process uses pools or thin films of low-melting metals like gallium to create the nanowires.
Researchers at Virginia Tech create flexible photovoltaic devices using nanometer-thick layers of self-assembling materials, increasing efficiency to up to 20% of silicon. Electrochromic films also improve response times, enabling faster color changes for applications in flat panel displays.
The discovery shows that confining hydrogen molecules in small spaces creates measurable magnetic interactions, which could lead to a better understanding of solar cell efficiency. The researchers believe this finding has fundamental implications for the study of nanomaterials and their potential applications.
The University of Houston's Space Vacuum Epitaxy Center has developed 15 new technologies, published over 450 scientific papers, and received $80 million in research funding. Researchers have also spun off two companies, one producing infrared lasers and the other commercializing a new type of electric wire.
The NTUA is installing 200 photovoltaic systems at private residences in remote areas, serving a single home each. The systems provide clean and quiet power for households with limited or no electricity, improving living standards.
A junior scientist has improved the efficiency of organic solar cells and discovered a new type of transistor, enabling flexible circuit manufacture. This breakthrough paves the way for simplification of circuit manufacturing and potential replacement of traditional silicon-based solar cells.
The Ninth Sede Boker Symposium on Solar Electricity Production will focus on ground-breaking work in solar power generation from around the world. Experts will share knowledge and problem-solving techniques with Arab and Israeli users of a large photovoltaic system designed for agricultural communities.
Adding nitrogen to gallium indium arsenide decreases its band gap dramatically, a significant finding for advanced solar cells. The discovery explains why the material has been disappointing in solar cells so far.
Researchers found that defects in silicon wafers, not grain boundaries, cause low efficiency; optimizing processes can remove contaminants and improve performance. The goal is to achieve 18% efficiency on the production line, a significant step towards making solar cells more profitable.
Researchers at Georgia Tech are using the university's rooftop solar system to study the performance and reliability of solar power systems. The system has operated close to expectations, producing 162.2 megawatt hours of electricity in its first seven-month period, but factors such as weather conditions have affected energy output.