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Categories: Energy: Alternative Fuels, Engineering: Graphene
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 Researchers discover new process to create freestanding membranes of 'smart' materials
(via sciencedaily.com) A team has developed a new method for making nano-membranes of 'smart' materials, which will allow scientists to harness their unique properties for use in devices such as sensors and flexible electronics.
Published Human brain organoids implanted into mouse cortex respond to visual stimuli for first time
(via sciencedaily.com) A team of engineers and neuroscientists has demonstrated for the first time that human brain organoids implanted in mice have established functional connectivity to the animals' cortex and responded to external sensory stimuli. The implanted organoids reacted to visual stimuli in the same way as surrounding tissues, an observation that researchers were able to make in real time over several months thanks to an innovative experimental setup that combines transparent graphene microelectrode arrays and two-photon imaging.
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 At the edge of graphene-based electronics
(via sciencedaily.com) Researchers developed a new graphene-based nanoelectronics platform compatible with conventional microelectronics manufacturing, paving the way for a successor to silicon.
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 Lucky find! How science behind epidemics helped physicists to develop state-of-the-art conductive paint
(via sciencedaily.com) Scientists demonstrate how a highly conductive paint coating that they have developed mimics the network spread of a virus through a process called 'explosive percolation' -- a mathematical process which can also be applied to population growth, financial systems and computer networks, but which has not been seen before in materials systems. The finding was a serendipitous development as well as a scientific first for the researchers.
Published A shield for 2D materials that adds vibrations to reduce vibration problems
(via sciencedaily.com) A new study demonstrates a new, counterintuitive way to protect atomically-thin electronics -- adding vibrations, to reduce vibrations. By squeezing a liquid-metal gallium droplet, graphene devices are painted with a protective coating of gallium-oxide that can cover millimeter-wide scales, making it potentially applicable for industrial large-scale fabrication. The new technique improves device performance as well as protecting 2D materials from thermal vibration in neighboring materials.
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 Nanomaterial influences gut microbiome and immune system interactions
(via sciencedaily.com) The nanomaterial graphene oxide -- which is used in everything from electronics to sensors for biomolecules -- can indirectly affect the immune system via the gut microbiome, as shown in a new study on zebrafish.
Published New life flashed into lithium-ion anodes
(via sciencedaily.com) Chemists use flash Joule heating to recover graphite anodes from spent lithium-ion batteries at a cost of about $118 per ton.
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 New way to produce important molecular entity
(via sciencedaily.com) A team presents a new, direct way to produce unsymmetrically constructed vicinal diamines. These structures are relevant for the function of biologically active molecules, natural products and pharmaceuticals.
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.