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Aug 22, 2024

Better arrangements of molecules in organic solar cells can improve light absorption

Posted by in categories: solar power, sustainability

In a paper published in Nature Chemistry, researchers from the University of Cambridge, Imperial College London and Queen Mary University of London have shown for the first time how different arrangements of molecules in organic solar cells can improve light absorption, leading the way to better and cheaper solar panels.

Organic solar cells use or organic polymers to absorb and transform sunlight into electricity. The molecules can be produced synthetically at high throughput, and the resulting cells are lightweight, flexible and inexpensive to make. This makes them potentially cheaper, sustainable and more flexible than traditional cells made of silicon.

When light hits an organic solar cell, it forces the molecules to transfer electrons, which generates an . The efficiency of the process depends on the arrangement of the molecules and how well they interact.

Aug 22, 2024

Engineers develop eco-friendly cooling device with record-breaking efficiency

Posted by in categories: energy, sustainability

Researchers at the School of Engineering of the Hong Kong University of Science and Technology (HKUST) have developed an eco-friendly refrigeration device with record-breaking cooling performance, setting the stage for transforming industries reliant on cooling and reducing global energy use.

With a boost in efficiency of over 48%, the new elastocaloric technology opens a promising avenue for accelerating the commercialization of this disruptive technology and addressing the associated with traditional cooling systems.

Traditional vapor compression refrigeration technology relies on refrigerants of high global warming potential. Solid-state elastocaloric refrigeration based on latent heat in the cyclic phase transition of shape memory alloys (SMAs) provides an environmentally friendly alternative, with its characteristics of greenhouse gas-free, 100% recyclable and energy-efficient SMA refrigerants.

Aug 22, 2024

Low-cost iron-air technology to feature in world’s biggest battery project in US

Posted by in categories: energy, sustainability

American energy storage technology newcomer Form Energy says it has received funding to deploy a groundbreaking 85 MW/8.5 GWh iron-air multi-day battery, which will be capable of up to 100 hours of storage and will be the world’s biggest battery once built.

The US Department of Energy last week announced $US389 million ($A579 million) in funding for the Power Up New England project which seeks to unlock up to 4.8GW of additional offshore wind and innovative battery energy storage systems in the local grids to boost resilience and optimise the delivery of renewable energy.

Part of the Power Up New England project, and easily the most exciting, is the 85 MW/8,500 MWh iron-air battery system to be built on the site of a former paper mill in rural Maine.

Aug 22, 2024

China research ‘bridges gap’ between power hungry AI models and the human brain

Posted by in category: robotics/AI

According to a paper published by Nature Computational Science on Friday, the researchers developed a model that bridges the gap between big, externally complex AI networks and the small, internally complex workings of the brain.

Industry experts said the team’s findings could mark a pivotal shift in AI development, prompting further exploration of computing solutions that are not dependent on silicon chips.

Aug 22, 2024

New technology extracts lithium from brines inexpensively and sustainably

Posted by in categories: chemistry, energy, sustainability, transportation

A new technology can extract lithium from brines at an estimated cost of under 40% that of today’s dominant extraction method, and at just a fourth of lithium’s current market price. The new technology would also be much more reliable and sustainable in its use of water, chemicals, and land than today’s technology, according to a study published in Matter by Stanford University researchers.

Global demand for lithium has surged in recent years, driven by the rise of electric vehicles and renewable energy storage. The dominant source of lithium extraction today relies on evaporating brines in huge ponds under the sun for a year or more, leaving behind a lithium-rich solution, after which heavy use of potentially toxic chemicals finishes the job. Water with a high concentration of salts, including lithium, occurs naturally in some lakes, hot springs, and aquifers, and as a byproduct of oil and natural gas operations and of .

Many scientists are searching for less expensive and more efficient, reliable, and environmentally friendly lithium extraction methods. These are generally direct lithium extraction that bypasses big evaporation ponds. The new study reports on the results of a new method using an approach known as “redox-couple electrodialysis,” or RCE, along with cost estimates.

Aug 22, 2024

Scientists Develop Solar Panel Material 100 Times Thinner Than a Human Hair

Posted by in categories: solar power, sustainability

The multi-layered coating is not only thinner than the silicon cells typically used in solar panels, but rivals their efficiency, too.

Aug 22, 2024

Apophis: The “God of Destruction” asteroid is coming close to Earth and NASA is planning to send a special mission for it

Posted by in categories: asteroid/comet impacts, existential risks

The asteroid Apophis, named after the Egyptian god of chaos, was discovered in 2004. Early calculations raised concerns due to its potential collision with Earth, making it a focus for scientists.

Aug 22, 2024

India will assemble iPhone 16 Pro for the first time

Posted by in category: mobile phones

Apple is continuing to expand manufacturing in India, and the country will reportedly produce the iPhone 16 Pro and iPhone 16 Pro Max as well as the regular models.

Originally, India only manufactured older iPhones, and then chiefly because it avoided import tax. More recently in its expansion of production in the country, India has taken on manufacturing current models of the iPhone 15.

According to Bloomberg, Apple intends to expand still further. For the first time, India will manufacture the iPhone 16 Pro and iPhone 16 Pro Max.

Aug 22, 2024

Our Galaxy Might Not Be Doomed After All

Posted by in category: space

Scientists say there’s a 50/50 chance that our Milky Way galaxy will collide with the Andromeda galaxy. Would you take those odds?

Aug 22, 2024

New Device Delivers Chemotherapy Directly to Tissue Left Behind After Surgery

Posted by in categories: biotech/medical, innovation

Researchers are developing an innovative device designed to deliver chemotherapy directly to the surgical site, aiming to reduce the risk of pancreatic cancer recurrence.

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