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Categories: Computer Science: General, Energy: Alternative Fuels
Published Space solar power technology demo launched into orbit
(via sciencedaily.com) The launch represents the first in-situ test of the technology to harvest solar energy in space and transmit it to Earth.
Published Improving the operational stability of perovskite solar cells
(via sciencedaily.com) Scientists have found a way to improve the operational stability of perovskite solar cells, a crucial step towards their commercialization.
Published The world's largest turbulence simulation unmasks the flow of energy in astrophysical plasmas
(via sciencedaily.com) Researchers uncover the long-hidden process that helps explain why the Sun's corona can be vastly hotter than the solar surface that emits it.
Published New study models the transmission of foreshock waves towards Earth
(via sciencedaily.com) As the supersonic solar wind surges towards Earth, its interaction with our planet's magnetic field creates a shock to deflect its flow, and a foreshock filled with electromagnetic waves. How these waves can propagate to the other side of the shock has long remained a mystery.
Published Scientists discover a novel photophysical mechanism that has achieved record-breaking efficiency for organic photovoltaics
(via sciencedaily.com) Organic photovoltaics (OPVs) are a promising, economical, next-generation solar cell technology for scalable clean energy and wearable electronics. But the energy conversion loss due to the recombination of photogenerated charge carriers in OPVs has hindered further enhancement of their power conversion efficiency (PCE). Recently, researchers from City University of Hong Kong (CityU) overcame this obstacle by inventing a novel device-engineering strategy to successfully suppress the energy conversion loss, resulting in record-breaking efficiency.
Published Ammonium is the secret ingredient in stable, efficient, scalable perovskite solar cells
(via sciencedaily.com) A new pathway to creating durable, efficient perovskite photovoltaics at industrial scale has been demonstrated through the first effective use of lead acetate as a precursor in making formamidinium-caesium perovskite solar cells.
Published Tandem solar cell achieves 32.5 percent efficiency
(via sciencedaily.com) Researchers report a new world record for tandem solar cells consisting of a silicon bottom cell and a perovskite top cell. The new tandem solar cell converts 32.5 percent of the incident solar radiation into electrical energy.
Published Catalyzing 'net-zero' green hydrogen from the sun
(via sciencedaily.com) Researchers have discovered an important in-situ protonation process that the photodynamics and separation of charge carriers in a photocatalyst, leading to efficient hydrogen generation from water using visible solar light. The process is enabled in an interstitial phosphorus doped carbon nitride structure, with only earth-abundant non-metallic elements, for its cost-effectiveness and high potential for practical applications.
Published Producing 'green' energy -- literally -- from living plant 'bio-solar cells'
(via sciencedaily.com) Though plants can serve as a source of food, oxygen and décor, they're not often considered to be a good source of electricity. But by collecting electrons naturally transported within plant cells, scientists can generate electricity as part of a 'green,' biological solar cell. Now, researchers have used a succulent plant to create a living 'bio-solar cell' that runs on photosynthesis.
Published Good vibrations turbo charge green hydrogen production
(via sciencedaily.com) Engineers have used sound waves to boost production of green hydrogen by 14 times, through electrolysis to split water.
Published Paper-thin solar cell can turn any surface into a power source
(via sciencedaily.com) MIT researchers developed a scalable fabrication technique to produce ultrathin, flexible, durable, lightweight solar cells that can be stuck to any surface. Glued to high-strength fabric, the solar cells are only one-hundredth the weight of conventional cells while producing about 18 times more power-per-kilogram.
Published Economical eco-friendly fabrication of high efficiency chalcopyrite solar cells
(via sciencedaily.com) Clean, sustainable energy solutions are essential to meet the ever-increasing energy demands of the human population. High efficiency solar cells are promising candidates to reduce carbon emissions and achieve carbon neutrality. In this regard, solution-processed copper indium gallium sulfur diselenide solar cells (CIGSSe) solar cells have generated significant interest owing to their excellent photovoltaic properties, such as high absorption of visible light, stability, and tunable bandgap. However, large scale, practical applications are limited by a two-fold challenge.
Published Built to last: The perovskite solar cells tough enough to match mighty silicon
(via sciencedaily.com) Researchers have demonstrated a new way to create stable perovskite solar cells, with fewer defects and the potential to finally rival silicon's durability.
Published Health benefits of using wind energy instead of fossil fuels
(via sciencedaily.com) A new study finds that the health benefits associated with wind power could more than quadruple if operators turned down output from the most polluting fossil-fuel-based power plants when energy from wind is available. However, compared to wealthier communities, disadvantaged communities would reap a smaller share of these benefits.
Published Large band bending at SnS interface opens door for highly efficient thin-film solar cells
(via sciencedaily.com) Tin sulfide (SnS) solar cells have shown immense promise in the rush to develop more environmentally friendly thin-film solar cells. Yet for years SnS solar cells have struggled to achieve a high conversion efficiency. To overcome this, a SnS interface exhibiting large band bending was necessary, something a research group has recently achieved.
Published Cooling down solar cells, naturally
(via sciencedaily.com) Too much sun and too much heat can reduce the efficiency of photovoltaics. A solar farm with optimally spaced panels facing the correct direction could cool itself through convection using the surrounding wind. Researchers explored how to exploit the geometry of solar farms to enhance natural cooling mechanisms.
Published Researchers create method for making net-zero aviation fuel
(via sciencedaily.com) An interdisciplinary team of researchers has developed a potential breakthrough in green aviation: a recipe for a net-zero fuel for planes that will pull carbon dioxide (CO2) out of the air.
Published Simple semiconductor solutions could boost solar energy generation and enable better space probes
(via sciencedaily.com) A 'simple' tweak to perovskite solar cells during the fabrication stage could help to unlock the untold potential of the renewable energy source, according to new research.
Published New insights into energy loss open doors for one up-and-coming solar tech
(via sciencedaily.com) A new method for describing energy loss in organic solar cells has paved the way for building better and more efficient devices.
Published Offshore wind farms may harm seabirds, but scientists see potential for net positive impact
(via sciencedaily.com) The development of offshore wind energy is expanding globally, with the potential to be an important source of clean renewable energy. Yet offshore wind farms pose significant risks to seabirds and other marine wildlife. A new study outlines a framework for addressing the impacts of offshore wind farms on marine bird populations and highlights conservation strategies that could potentially more than offset those impacts.