Category Chemistry/Nanotechnology

Physicists create Tunable Superconductivity in Twisted Graphene ‘Nanosandwich’

Illustration of electrons against hexagonal pattern
This artist’s rendition shows magic-angle twisted trilayer graphene, composed of three honeycomb lattices. The tightly bound electrons (yellow spheres connected by blue halos) indicate the new structure’s strongly coupled superconducting state.
Credits:Image: Ella Maru Studio

When two sheets of graphene are stacked atop each other at just the right angle, the layered structure morphs into an unconventional superconductor, allowing electric currents to pass through without resistance or wasted energy.

This “magic-angle” transformation in bilayer graphene was observed for the first time in 2018 in the group of Pablo Jarillo-Herrero, the Cecil and Ida Green Professor of Physics at MIT...

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Salt Battery design overcomes bump in the road to help Electric Cars go the extra mile

A quasi-solid-state (QSS) molten salt electrolyte and the structure of QSS molten salt iron air battery

Using salt as a key ingredient, Chinese and British researchers have designed a new type of rechargeable battery that could accelerate the shift to greener, electric transport on our roads.

Many electric vehicles (EV) are powered by rechargeable lithium-ion batteries, but they can lose energy and power over time. Under certain conditions, such batteries can also overheat while working or charging, which can also degrade battery life and reduce miles per charge.

To solve these issues, the University of Nottingham is collaborating with six scientific research institutes across China to develop an innovative and affordable energy store with the combined performance merits of a sol...

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Chloroplast-Fortified 3D-Printer Ink may Strengthen Products

Imagine that products could be strengthened with the same living materials that provide nutrients to strengthen trees. Professor Qiming Wang’s research lab is one of the first to infuse 3-D printer ink with living material. The material has potential for greater strength, to be flexible and self-heal. The work is documented in a paper published in The Proceedings of the National Academy of Sciences.

The idea for this bio-inspired ink came from trees that harness the power of photosynthesis to produce glucose that transform to cellulose and strengthen the plant’s cell structure. “When trees are young,” says Wang, “they are flexible, when they are mature, they are rigid.”

“The research idea is also inspired by Popeye the Sailor, the animated character who can strengthen his muscle...

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Blue-light Stride in perovskite-based LEDs

Blue-LED-perovskite in close-up.
Blue light perovskite-basedLEDs are key to creating white light. Thor Balkhe

Mixed halide perovskites for spectrally stable and high-efficiency blue light-emitting diodes. Researchers at Linköping University, Sweden, have developed efficient blue light-emitting diodes based on halide perovskites. “We are very excited about this breakthrough,” says Feng Gao, professor at Linköping University. The new LEDs may open the way to cheap and energy-efficient illumination.

Illumination is responsible for approximately 20% of global electricity consumption, a figure that could be reduced to 5% if all light sources consisted of light-emitting diodes (LEDs)...

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