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Materials news, May 2020

Mottness explains insulator-conductor electron shuffle in tantalum disulfide

Structural control gives sea urchins strength

mineralized skeletons of sea urchins that are light and robust hold important clues for analyzing and designing artificial porous materials

Scientists have observed light emission from a new type of transition between electronic valleys, known as intervalley transmissions, in a 2D material.

Researchers have combined big data and machine learning to selectively design gas-filtering polymer membranes to reduce greenhouse gas emissions.

Researchers have developed a supercapacitor made from a polymer composite that is able to store and deliver electricity at high power rates.

A 2D sandwich of molybdenum, sulfur and selenium can greatly boost the sensitivity of surface-enhanced Raman spectroscopy.

A novel textile coating based on polymer nanoparticles can not only repel liquids like blood and saliva but can also prevent viruses from adhering.

Researchers have discovered that certain organic crystals are more flexible and stretchable than current materials used for electronic applications.

A novel heat treatment with an organic group can enhance the stability of tin halide perovskite solar cells by preventing tin oxidation.

A novel polymer compound embedded with bismuth trioxide particles holds tremendous promise as a lightweight radiation shielding material.

Tandem structure improves efficiency of solar cells

By soaking up water from the air at night and then releasing it during the day, a novel polymer gel can reduce solar panel temperatures by 10°C.

New class of materials based on liquid metal lattices

By combining machine learning with X-ray tomography, scientists have produced a detailed picture of how battery cathodes degrade with use.

Scientists think that defects in low-dimensional perovskites may be responsible for their broad emission spectrum and large color variation.

Improving our understanding of the surface of a semiconductor compound

Designer membranes through machine learning

Scientists have discovered that the 2D material molybdenum dioxide exhibits piezoelectricity, due to electrons being trapped in its surface defects.

biocompatible polymer scaffolds coated with carbon nanotubes could provide a vital foothold for regrowing cells

A new supercapacitor based on manganese oxide could combine the storage capacity of batteries with the fast charging of conventional supercapacitors.

Chemists have developed novel metal-organic frameworks that can remove toxic hexavalent chromium from water and convert it to a non-toxic form.

By tweaking their chemical makeup and fabrication, researchers have produced perovskite solar cells that are better at withstanding high temperatures.

By taking advantage of bottle-brush polymers, researchers have discovered a way to grow hollow crystal spheres, and pause this growth to leave holes.

Scientists have used single-crystal electrodes to reveal information about the workings of polycrystalline electrodes in advanced silicon-ion batteries.

By combining silicon nanoparticles with carbon nanotubes, researchers have created yarn-like microspheres for use as battery electrodes.

Researchers have found a way to make halide perovskites more stable by adding a bulky molecule to their surface to inhibit ion movement.

Researchers have found that dipping polymeric membranes in tannic acid allows their surface to be coated by atomic layer deposition.

Using a catalyst solution and a ‘twin-screw’ extrusion process, researchers have developed a new method for upcycling polyurethane foams.

A novel method for mixing metals generally known to be immiscible at the nanoscale can create a new range of bimetallic nanoparticles.

Scientists have discovered that the incorporation of hydrogen into nickelates during their synthesis stops them from superconducting.

Novel ion-driven transistors and mixed-conducting particulate material could form the foundation for fully implantable bioelectronic devices.

Researchers have developed a lead-free perovskite for use in solar cells that could be a safer and more stable than lead-based perovskites.

The award is to honor a young researcher active in the fields of Nanofabrication and Nanotechnology for Electronics, MEMS and Life Sciences.

Shedding ultraviolet light to kill coronavirus

Researchers have used electrostatic charge to get colloidal particles to self-assemble into crystalline materials that mimic salt and opals.

Cold-chain safety sticker creates an image when exposed to room temperature

Researchers have developed a liposome-like nanoparticle called a sterosome that could help improve treatment for bone defects.

Tin-based perovskites show promise for photovoltaic devices

For the first time, researchers have discovered superconducting currents traveling along the outer edges of a superconductor with topological properties.

A novel electrolyte that forms a protective layer over the silicon nanoparticles that make up a battery anode gives the silicon room to swell.

A metal harvest to power the world's micro robots

Atmospheric hexagonal boron nitride (hBN) for graphene sandwiches

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