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Category: solar power

From engines to nanochips: Physicists redefine how heat really moves

Heat has always been something we thought we understood. From baking bread to running engines, the idea seemed simple: heat spreads out smoothly, like water soaking through a sponge. That simple picture, written down by Joseph Fourier 200 years ago, became the foundation of modern science and engineering.

But zoom into the nanoscale—inside the chips that power your smartphone, AI hardware, or next-generation solar panels—and the story changes. Here, heat doesn’t just “diffuse.” It can ripple like , remember its past, or flow in elegant streams like a fluid in a pipe. For decades, scientists had pieces of this puzzle but no unifying explanation.

Now, researchers at Auburn University and the U.S. Department of Energy’s National Renewable Energy Laboratory have delivered what they call a “unified statistical theory of heat conduction.”

Jeff Bezos envisions space-based data centers in 10 to 20 years

Jeff Bezos envisions gigawatt-scale orbital data centers within 10–20 years, powered by continuous solar energy and space-based cooling, but the concept remains commercially unviable today due to the immense cost and complexity of deploying thousands of tons of hardware, solar panels, and radiators into orbit.

Spinel-type sulfide semiconductors achieve room-temperature light emission across violet to orange spectrum

A spinel-type sulfide semiconductor that can emit light from violet to orange at room temperature has been developed by researchers at Science Tokyo, overcoming the efficiency limitations of current LED and solar cell materials. The material, (Zn, Mg)Sc2S4, can be chemically tuned to switch between n-type and p-type conduction, leading to future pn homojunction devices. This versatile semiconductor offers a practical path toward the development of more efficient LEDs and solar cells.

Ultra-thin sodium films offer low-cost alternative to gold and silver in optical technologies

From solar panels to next-generation medical devices, many emerging technologies rely on materials that can manipulate light with extreme precision. These materials—called plasmonic materials—are typically made from expensive metals like gold or silver. But what if a cheaper, more abundant metal could do the job just as well or better?

That’s the question a team of researchers set out to explore. The challenge? While is abundant and lightweight, it’s also notoriously unstable and difficult to work with in the presence of air or moisture—two unavoidable parts of real-world conditions. Until now, this has kept it off the table for practical optical applications.

Researchers from Yale University, Oakland University, and Cornell University have teamed up to change that. By developing a new technique for structuring sodium into ultra-thin, precisely patterned films, they found a way to stabilize the and make it perform exceptionally well in light-based applications.

Organic semiconductor molecule set to transform solar energy harvesting

In a discovery that bridges a century of physics, scientists have observed a phenomenon, once thought to be the domain of inorganic metal oxides, thriving within a glowing organic semiconductor molecule. This work, led by the University of Cambridge, reveals a powerful new mechanism for harvesting light and turning it into electricity. This could redefine the future of solar energy and electronics, and lead to lighter, cheaper, and simpler solar panels made from a single material.

The research focuses on a spin-radical organic semiconductor molecule called P3TTM. At its center sits a single, unpaired electron, giving it unique magnetic and electronic properties. This work arises from a collaboration between the synthetic chemistry team of Professor Hugo Bronstein in the Yusuf Hamied Department of Chemistry and the semiconductor physics team led by Professor Sir Richard Friend in the Department of Physics. They have developed this class of to give very efficient luminescence, as exploited in organic LEDs.

However, the study, published in Nature Materials, reveals their hidden talent: When brought into close contact, their unpaired electrons interact in a manner strikingly similar to a Mott-Hubbard insulator.

Nanoscale slots enable room-temperature hybrid states of matter in perovskite

Atoms in crystalline solids sometimes vibrate in unison, giving rise to emergent phenomena known as phonons. Because these collective vibrations set the pace for how heat and energy move through materials, they play a central role in devices that capture or emit light, like solar cells and LEDs.

AI Cracks the Code for the Next Generation of Solar Power

Rising global energy demands are pushing the limits of solar technology. Scientists in Sweden have now taken a major step toward unlocking the potential of halide perovskites. Global demand for electricity is climbing at a fast pace, making it essential to find sustainable ways to meet future nee

Piecing together the puzzle of future solar cell materials

Global electricity use is increasing rapidly and must be addressed sustainably. Developing new materials could give us much more efficient solar cell materials than at present; materials so thin and flexible that they could encase anything from mobile phones or entire buildings.

Using computer simulation and , researchers at Chalmers University of Technology in Sweden have now taken an important step toward understanding and handling halide perovskites, among the most promising but notoriously enigmatic materials.

Electricity use is constantly increasing globally and, according to the International Energy Agency, its proportion of the world’s total energy consumption is expected to exceed 50% in 25 years, compared to the current 20%.

Solar breakthrough — hotter panels mean better storage

Scientists have uncovered a surprising advantage in next-generation solar technology—the hotter it gets, the better it can store energy. Traditionally, heat has been seen as the enemy of solar power. Standard solar panels lose efficiency as temperatures rise.

But a new study, published in The Journal of Chemical Physics, shows that in special “solar-plus-storage” devices, heat can actually boost performance by speeding up the internal chemical reactions that store energy.

The team studied photoelectrochemical (PEC) flow cells—an emerging technology that combines the sunlight-harvesting ability of a solar panel with the storage power of a battery.

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