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Categories: Energy: Technology, Physics: Optics

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Chemistry: General Chemistry: Inorganic Chemistry Computer Science: General Physics: Optics
Published

More efficient TVs, screens and lighting      (via sciencedaily.com)     Original source 

New multidisciplinary research could lead to more efficient televisions, computer screens and lighting.

Engineering: Nanotechnology Physics: Optics
Published

A tiny spot leads to a large advancement in nano-processing, researchers reveal      (via sciencedaily.com)     Original source 

Focusing a tailored laser beam through transparent glass can create a tiny spot inside the material. Researchers have reported on a way to use this small spot to improve laser material processing, boosting processing resolution.

Chemistry: Thermodynamics Energy: Alternative Fuels Energy: Technology Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues
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Heat, cold extremes hold untapped potential for solar and wind energy      (via sciencedaily.com)     Original source 

Conditions that usually accompany the kind of intense hot and cold weather that strains power grids may also provide greater opportunities to capture solar and wind energy. A study found that widespread, extreme temperature events are often accompanied by greater solar radiation and higher wind speeds that could be captured by solar panels and wind turbines. The research, which looked at extensive heat and cold waves across the six interconnected energy grid regions of the U.S. from 1980-2021, also found that every region experienced power outages during these events in the past decade. The findings suggest that using more renewable energy at these times could help offset increased power demand as more people and businesses turn on heaters or air conditioners.

Biology: General Energy: Batteries Energy: Technology
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Implantable batteries can run on the body's own oxygen      (via sciencedaily.com)     Original source 

From pacemakers to neurostimulators, implantable medical devices rely on batteries to keep the heart on beat and dampen pain. But batteries eventually run low and require invasive surgeries to replace. To address these challenges, researchers have devised an implantable battery that runs on oxygen in the body. The study shows in rats that the proof-of-concept design can deliver stable power and is compatible with the biological system.

Computer Science: Quantum Computers Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
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Bullseye! Accurately centering quantum dots within photonic chips      (via sciencedaily.com)     Original source 

Researchers have now developed standards and calibrations for optical microscopes that allow quantum dots to be aligned with the center of a photonic component to within an error of 10 to 20 nanometers (about one-thousandth the thickness of a sheet of paper). Such alignment is critical for chip-scale devices that employ the radiation emitted by quantum dots to store and transmit quantum information.

Chemistry: Biochemistry Chemistry: Inorganic Chemistry Chemistry: Thermodynamics Engineering: Nanotechnology Physics: General Physics: Optics Physics: Quantum Physics
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New method to measure entropy production on the nanoscale      (via sciencedaily.com)     Original source 

Entropy, the amount of molecular disorder, is produced in several systems but cannot be measured directly. A new equation sheds new light on how entropy is produced on a very short time scale in laser excited materials.

Chemistry: General Chemistry: Inorganic Chemistry Engineering: Nanotechnology Offbeat: Computers and Math Offbeat: General Physics: Optics
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Micro-Lisa! Making a mark with novel nano-scale laser writing      (via sciencedaily.com)     Original source 

High-power lasers are often used to modify polymer surfaces to make high-tech biomedical products, electronics and data storage components. Now researchers have discovered a light-responsive, inexpensive sulfur-derived polymer is receptive to low power, visible light lasers -- promising a more affordable and safer production method in nanotech, chemical science and patterning surfaces in biological applications.

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Energy: Alternative Fuels Engineering: Nanotechnology Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry Physics: Optics
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Research lights up process for turning CO2 into sustainable fuel      (via sciencedaily.com)     Original source 

Researchers have successfully transformed CO2 into methanol by shining sunlight on single atoms of copper deposited on a light-activated material, a discovery that paves the way for creating new green fuels.

Chemistry: General Computer Science: General Computer Science: Virtual Reality (VR) Energy: Alternative Fuels Energy: Technology Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Pairing crypto mining with green hydrogen offers clean energy boost      (via sciencedaily.com)     Original source 

Pairing cryptocurrency mining -- notable for its outsize consumption of carbon-based fuel -- with green hydrogen could provide the foundation for wider deployment of renewable energy, such as solar and wind power, according to a new study.

Chemistry: Biochemistry Chemistry: General Physics: Optics
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Pushing back the limits of optical imaging by processing trillions of frames per second      (via sciencedaily.com)     Original source 

Pushing for a higher speed isn't just for athletes. Researchers, too, can achieve such feats with their discoveries. A new device called SCARF (for swept-coded aperture real-time femtophotography) can capture transient absorption in a semiconductor and ultrafast demagnetization of a metal alloy. This new method will help push forward the frontiers of knowledge in a wide range of fields, including modern physics, biology, chemistry, materials science, and engineering.

Chemistry: General Engineering: Nanotechnology Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry Offbeat: Earth and Climate Offbeat: General Physics: Optics
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A self-cleaning wall paint      (via sciencedaily.com)     Original source 

Beautiful white wall paint does not stay beautiful and white forever. Often, various substances from the air accumulate on its surface. This can be a desired effect because it makes the air cleaner for a while -- but over time, the color changes and needs to be renewed. Now, special titanium oxide nanoparticles have been developed that can be added to ordinary, commercially available wall paint to establish self-cleaning power: The nanoparticles are photocatalytically active, they can use sunlight not only to bind substances from the air, but also to decompose them afterwards.

Chemistry: General Energy: Batteries Energy: Technology
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New all-liquid iron flow battery for grid energy storage      (via sciencedaily.com)     Original source 

A new iron-based aqueous flow battery shows promise for grid energy storage applications.

Chemistry: Biochemistry Energy: Alternative Fuels Energy: Technology Environmental: General Geoscience: Environmental Issues
Published

Researchers take major step toward developing next-generation solar cells      (via sciencedaily.com)     Original source 

Engineers have discovered a new way to manufacture solar cells using perovskite semiconductors. It could lead to lower-cost, more efficient systems for powering homes, cars, boats and drones.

Chemistry: General Chemistry: Inorganic Chemistry Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
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Cleaning up environmental contaminants with quantum dot technology      (via sciencedaily.com)     Original source 

The 2023 Nobel Prize in Chemistry was focused on quantum dots -- objects so tiny, they're controlled by the strange rules of quantum physics. Quantum dots used in electronics are often toxic, but their nontoxic counterparts are being explored for uses in medicine and in the environment, including water decontamination. One team of researchers has specially designed carbon- and sulfur-based dots for these environmental applications.

Chemistry: Biochemistry Physics: Optics
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Researchers add swept illumination to open-top light-sheet microscope      (via sciencedaily.com)     Original source 

Researchers have incorporated a swept illumination source into an open-top light-sheet microscope to enable improved optical sectioning over a larger area of view. The advance makes the technique more practical for nondestructive 3D pathology.

Energy: Technology Engineering: Nanotechnology Physics: Optics
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Metamaterials and AI converge, igniting innovative breakthroughs      (via sciencedaily.com)     Original source 

Scientists unveil next-generation research trends in metaphotonics platforms with AI.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Offbeat: General Physics: Optics
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Molecular crystal motors move like microbes when exposed to light      (via sciencedaily.com)     Original source 

At first glance, Rabih Al-Kaysi's molecular motors look like the microscopic worms you'd see in a drop of pond water. But these wriggling ribbons are not alive; they're made from crystallized molecules that perform coordinated movements when exposed to light. With continued development, these tiny machines could be used as drug-delivery robots or engineered into arrays that direct the flow of water around submarines.

Chemistry: Biochemistry Computer Science: General Energy: Technology Offbeat: Computers and Math Offbeat: General
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Brain-inspired wireless system to gather data from salt-sized sensors      (via sciencedaily.com)     Original source 

In a new study, researchers describe a novel approach for a wireless communication network that can efficiently transmit, receive and decode data from thousands of microelectronic chips that are each no larger than a grain of salt.

Chemistry: General Chemistry: Organic Chemistry Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
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Spectroscopy and theory shed light on excitons in semiconductors      (via sciencedaily.com)     Original source 

Researchers have made very fast and very precise images of excitons -- in fact, accurate to one quadrillionth of a second and one billionth of a meter. This understanding is essential for developing more efficient materials with organic semiconductors.

Engineering: Nanotechnology Offbeat: Computers and Math Offbeat: General Offbeat: Plants and Animals Physics: General Physics: Optics
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Backyard insect inspires invisibility devices, next gen tech      (via sciencedaily.com)     Original source 

Leafhoppers, a common backyard insect, secrete and coat themselves in tiny mysterious particles that could provide both the inspiration and the instructions for next-generation technology, according to a new study. In a first, the team precisely replicated the complex geometry of these particles, called brochosomes, and elucidated a better understanding of how they absorb both visible and ultraviolet light.