Current Solar Cells News and Events

Current Solar Cells News and Events, Solar Cells News Articles.
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Scientists develop perovskite solar modules with greater size, power and stability
Researchers from the Okinawa Institute of Science and Technology Graduate University (OIST) have created perovskite solar modules with improved stability and efficiency by using a new fabrication technique that reduced defects. Their findings were published on the 25th January in Advanced Energy Materials. (2021-01-27)

Solar hydrogen: Photoanodes made of alpha-SnWO4 promise high efficiencies
Photoanodes made of metal oxides are considered to be a viable solution for the production of hydrogen with sunlight. Alpha-SnWO4 has optimal electronic properties for photoelectrochemical water splitting with sunlight, but corrodes easily. Protective layers of nickel oxide prevent corrosion, but reduce the photovoltage and limit the efficiency. Now a team at HZB has investigated at BESSY II what happens at the interface between the photoanode and the protective layer. (2021-01-26)

Solar material can 'self-heal' imperfections, new research shows
A material that can be used in technologies such as solar power has been found to self-heal, a new study shows. (2021-01-26)

Photocatalytic reaction in the shadow
Photoelectrochemical water splitting is a promising technology to convert solar energy into value-added fuels. Theoretically, silicon-based metal-insulator-semiconductor (MIS) photocathode can achieve high efficiency. However, the parasitic light absorption caused by catalysts and metals, as well as the lack of metals to form a large band-offset with p-Si, severely limit their performances. Scientists based in China have demonstrated an illumination-reaction decoupled MIS photocathode using n-Si to prevent the parasitic light absorption while establishing a large band-offset. (2021-01-25)

How does incident solar radiation affect urban canyons?
Toyohashi University of Technology proposed a numerical bead model to predict the upward-to-downward reflection ratio of glass bead retro-reflective (RR) material purposed for urban heat island (UHI) mitigation and reducing energy consumption. These results will contribute to existing research on the absorption or reflection of solar radiation to improve urban thermal and lighting conditions, and to reduce building energy consumption. (2021-01-25)

Magnetic waves explain mystery of Sun's outer layer
in a new study published in The Astrophysical Journal, researchers combined observations from a telescope in New Mexico, the United States, with satellites located near Earth to identify a link between magnetic waves in the chromosphere and areas of abundant ionised particles in the hot outer atmosphere. (2021-01-22)

Highly efficient grid-scale electricity storage at fifth of cost
Researchers in WMG at the University of Warwick, in collaboration with Imperial College London, have found a way to enhance hybrid flow batteries and their commercial use. The new approach can store electricity in these batteries for very long durations for about a fifth the price of current technologies, with minimal location restraints and zero emissions. (2021-01-22)

A professor from RUDN University developed new liquid crystals
A professor from RUDN University together with his Indian colleagues synthesized and studied new dibenzophenazine-based liquid crystals that could potentially be used in optoelectronics and solar panels. (2021-01-22)

Much of Earth's nitrogen was locally sourced
Scientists show evidence that nitrogen acquired during Earth's formation came from both the inner and outer regions of the protoplanetary disk. The study has implications for signs of potential habitability of exoplanets. (2021-01-21)

Producing green hydrogen through the exposure of nanomaterials to sunlight
A research team from the Institut national de la recherche scientifique (INRS) has joined forces with French researchers from the The Institute of Chemistry and Processes for Energy, Environment and Health (ICPEES), a CNRS-University of Strasbourg joint research lab, to pave the way towards the production of green hydrogen. (2021-01-21)

Squeezing a rock-star material could make it stable enough for solar cells
A promising lead halide perovskite is great at converting sunlight to electricity, but it breaks down at room temperature. Now scientists have discovered how to stabilize it with pressure from a diamond anvil cell. The required pressure is well within the reach of industrial manufacturing requirements. (2021-01-21)

Boosted photocatalysis for hydrogen evolution: Reactant supply thru phosphonate groups
Water splitting research for solar hydrogen production has focused on physical processes inside the semiconductor, such as light absorption, charge separation, and chemical processes on the surface that are highly complex and rely on the development of new materials. The concept proposed in this study is design of the electrolyte-photocatalyst interface. The approach of immobilizing functional groups near the solid-liquid interface can be a broad-ranging methodology that is effective regardless of the materials used. (2021-01-20)

Oldest carbonates in the solar system
A meteorite that fell in northern Germany in 2019 contains carbonates which are among the oldest in the solar system; it also evidences the earliest presence of liquid water on a minute planet. The high-resolution Ion Probe - a research instrument at the Institute of Earth Sciences at Heidelberg University - provided the measurements. (2021-01-20)

Could "Power Walking" fuel the energy revolution? India is ready to step up
India has an energy problem. It currently relies heavily on coal and consumer demand is expected to double by 2040, making its green energy targets look out of reach. Part of the solution could come from harvesting energy from footsteps, say Hari Anand and Binod Kumar Singh from the University of Petroleum and Energy Studies in Dehradun, India. Their new study, published in the De Gruyter journal Energy Harvesting and Systems, shows that Indian attitudes towards power generated through piezoelectric tiles are overwhelmingly positive. (2021-01-19)

Solar activity reconstructed over a millennium
An international team of researchers led by ETH Zurich has reconstructed solar activity back to the year 969 using measurements of radioactive carbon in tree rings. Those results help scientists to better understand the dynamics of the sun and allow more precise dating of organic materials using the C14 method. (2021-01-19)

NASA explores solar wind with new view of small sun structures
Scientists have combined NASA data and cutting-edge image processing to gain new insight into the solar structures that create the Sun's flow of high-speed solar wind, detailed in new research published today in The Astrophysical Journal. This first look at relatively small features, dubbed ''plumelets,'' could help scientists understand how and why disturbances form in the solar wind. (2021-01-19)

Purely organic hole transporter
Durable, high-performing perovskite solar cells also require durable, high-performing charge-transporting layers. Scientists have developed the first organic hole transporter that does not need a dopant to attain high charge mobility and stability. According to the study published in the journal Angewandte Chemie, this novel hole-transporting layer outperforms reference materials and protects the perovskite organic cell from air humidity. (2021-01-18)

The compound that makes chili peppers spicy also boosts perovskite solar cell performance
Research publishing January 13 in the journal Joule, determined that sprinkling capsaicin, the compound that makes peppers spicy, into the precursor of methylammonium lead triiodide (MAPbI3) perovskite during the manufacturing process led to a greater abundance of electrons (instead of empty placeholders) to conduct current at the semiconductor's surface. The addition resulted in polycrystalline MAPbI3 solar cells with the most efficient charge transport to date. (2021-01-13)

Eastern and central China become brighter due to clean air action
A new study finds that the air pollution control actions can lead to not only considerable environmental and health improvements, but also increases in solar photovoltaic energy production. (2021-01-13)

Analytical measurements can predict organic solar cell stability
researchers have developed an analytical measurement ''framework'' which could allow organic solar cell researchers and manufacturers to determine which materials will produce the most stable solar cells prior to manufacture. (2021-01-11)

Striped or spotted? Winds and jet streams found on the closest brown dwarf
Using high-precision brightness measurements from NASA's TESS space telescope, astronomers found that the nearby brown dwarf Luhman 16B's atmosphere is dominated by high-speed, global winds akin to Earth's jet stream system. This global circulation determines how clouds are distributed in the brown dwarf's atmosphere, giving it a striped appearance. (2021-01-07)

Tracking the formation of the early heart, cell by cell
Richard Tyser and colleagues have mapped the origins of the embryonic mouse heart at single-cell resolution, helping to define the cell types that make up the heart in the earliest days of development. (2021-01-07)

Impurities boost performance of organic solar cells
An electrochemical method for stabilizing a reactive molecule can help the development of higher efficiency solar cells. (2021-01-05)

On the road to invisible solar panels: How tomorrow's windows will generate electricity
In a new study in Journal of Power Sources, an international team of researchers, led by Prof. Joondong Kim from Korea, demonstrate the first transparent solar cell. Their innovative technique rests on a specific part of the solar cell: the heterojunction, made up of thin films of materials responsible for absorbing light. By combining the unique properties of titanium dioxide and nickel oxide semiconductors, the researchers were able to generate an efficient, transparent solar cell. (2021-01-05)

A polarization-driven guide to making high-performance, versatile solar cells
When solar cells are exposed to sunlight, certain bound ''charge pairs'' are generated in its components, which need to be separated for photocurrent generation. Ferroelectric materials, due to their spontaneous electric polarization, are highly efficient at charge separation but do poorly in light-to-electricity conversion. Now, scientists from Korea have demonstrated using theoretical calculations that antiperovskite oxides, a class of ferroelectric materials, show large absorption of sunlight, making them suitable photoabsorbers for thin film solar cells. (2021-01-04)

First glimpse of polarons forming in a promising next-gen energy material
Polarons affect a material's behavior, and may even be the reason that solar cells made with lead hybrid perovskites achieve extraordinarily high efficiencies in the lab. Now scientists have used an X-ray free-electron laser to directly see and measure the formation of these ephemeral atomic lattice distortions for the first time. (2021-01-04)

Using solar energy and agriculture to limit climate change, assist rural communities
Co-developing land for both solar photovoltaic power and agriculture could provide 20% of total electricity generation in the United States with an investment of less than 1% of the annual US budget, a new paper by Oregon State University researchers found. (2021-01-04)

SwRI-led team finds meteoric evidence for a previously unknown asteroid
A Southwest Research Institute-led team of scientists has identified a potentially new meteorite parent asteroid by studying a small shard of a meteorite that arrived on Earth a dozen years ago. The composition of a piece of the meteorite Almahata Sitta (AhS) indicates that its parent body was an asteroid roughly the size of Ceres, the largest object in the main asteroid belt, and formed in the presence of water under intermediate temperatures and pressures. (2020-12-21)

New energy conversion layer for biosolar cells
A research team from the Ruhr-Universität Bochum, together with colleagues from Lisbon, has produced a semi-artificial electrode that could convert light energy into other forms of energy in biosolar cells. The technique is based on the photosynthesis protein Photosystem I from cyanobacteria. The group showed that they could couple their system with an enzyme that used the converted light energy to produce hydrogen. (2020-12-21)

Brain stem cells divide over months
For the first time, scientists at the University of Zurich have been able to observe the way stem cells in the adult brains of mice divide over the course of months to create new nerve cells. Their study shows that brain stem cells are active over a long period, and thus provides new insights that will feed into stem cell research. (2020-12-21)

Goldilocks and the three quantum dots: Just right for peak solar panel performance
Maximizing the efficiency of renewable energy technology is dependent on creating nanoparticles with ideal dimensions and density, new simulations have shown. (2020-12-20)

Inverted fluorescence
Fluorescence usually entails the conversion of light at shorter wavelengths to light at longer wavelengths. Scientists have now discovered a chromophore system that goes the other way around. When excited by visible light, the fluorescent dyes emit light in the ultraviolet region. According to the study published in the journal Angewandte Chemie, such light upconversion systems could boost the light-dependent reactions for which efficiency is important, such as solar-powered water splitting. (2020-12-18)

Recently discovered comet seen during 2020 total solar eclipse
As Chile and Argentina witnessed the total solar eclipse on Dec. 14, 2020, unbeknownst to skywatchers, a little tiny speck was flying past the Sun -- a recently discovered comet. (2020-12-18)

Roadmap to renewables unites climate and sustainability goals
Are clean energy plans missing the forest for the GHGs? A study from UC Davis and John Hopkins University presents a roadmap to renewables that unites climate change and biodiversity goals. (2020-12-18)

Change in global precipitation patterns as a result of climate change
The Earth's climate system is largely determined by the differences in temperature between the tropics and the poles. Global warming is likely to cause global atmospheric circulation to change and progressively revert to a situation similar to that of 5,000 to 10,000 years ago. This is the conclusion of a study published in Nature Communications. (2020-12-17)

A new method for the functionalization of graphene
An international research team involving Professor Federico Rosei of the Institut national de la recherche scientifique (INRS) has demonstrated a novel process to modify the structure and properties of graphene, a one atom thick carbon. (2020-12-16)

Astronomers detect possible radio emission from exoplanet
By monitoring the cosmos with a radio telescope array, a Cornell University-led international team of scientists has detected radio bursts emanating from the constellation Boötes. The signal could be the first radio emission collected from a planet beyond our solar system. (2020-12-16)

New fullerene crystal production method 50 times faster than predecessor
Researchers from Yokohama National University and the University of Electro-Communications in Japan have developed a highly efficient technique for producing a unique fullerene crystal, called fullerene finned-micropillar (FFMP), that is of significant use for next-generation electronics. In a paper published in Scientific Reports in November 2020 (DOI: 10.1038/s41598-020-76252-6), the team details how they utilized a small heating apparatus that accepted fullerene and heated it to a temperature of 1,173 Kelvin for about an hour. (2020-12-15)

Benefits of renewable energy vary from place to place
A new study finds the environmental benefits of renewable power generation vary significantly, depending on the nature of the conventional power generation that the renewable energy is offsetting. The researchers hope the work will help target future renewable energy investments in places where they can do the most good. (2020-12-14)

Artificial intelligence sets sights on the sun
Scientists employed a neural network to learn the characteristics of high-quality images of the ground-based full-disk images of the sun and estimate the deviation of real observations from an ideal reference. They used artificial intelligence (AI) to achieve quality assessment that is similar to human interpretation. Currently, the authors are further elaborating their image processing methods to provide a continuous data stream of the highest possible quality and developing automated detection software for continuous tracking of solar activity. (2020-12-14)

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