The bandstructure in a double layer of graphene was scanned by ARPES at synchrotron light source BESSY II.
Credit: HZB

Scientists have found evidence that double layers of graphene have a property that may let them conduct current completely without resistance. They probed the band structure at BESSY II with extremely high resolution ARPES and could identify a flat area at a surprising location.

In April 2018, a group at MIT, USA, showed that it is possible to generate a form of superconductivity in a system of two layers of graphene under very specific conditions: To do this, the two hexagonal nets must be twisted against each other by exactly the magic angle of 1.1°. Under this condition a flat band forms in the electronic structure...

This image shows the apparatus that is proving the efficacy of a double-layered rooftop panel. The top layer uses the standard semiconductor materials that go into energy-harvesting solar cells, the novel materials on the bottom layer perform the cooling task. CREDIT Linda Cicero, Stanford News

Scientists at Stanford University have demonstrated for the first time that heat from the sun and coldness from outer space can be collected simultaneously with a single device. Their research, published November 8 in the journal Joule, suggests that devices for harvesting solar and (space energy will not compete for land space and can actually help each other function more efficiently.

Renewable energy is increasingly popular as an economical and efficient alternative to fossil fuels, with solar en...

An image of the Wild Duck Cluster was captured by the MPG/ESO 2.2-metre telescope at the La Silla Observatory in Chile. The blue stars at the center of the image are the stars of the cluster. Every star in the Wild Duck Cluster is roughly 250 million years old. Older, redder stars surround the cluster.
Credit: European Southern Observatory

Do star clusters harbor many generations of stars or just one? Scientists have long searched for an answer and, thanks to the University of Arizona’s MMT telescope, found one in the Wild Duck Cluster, where stars spin at different speeds, disguising their common age.

In a partnership between the UA and the Korean Astronomy and Space Science Institute, a team of Korean and Belgian astronomers used UA instruments to solve a puzzle about flocks of stars call...

Purdue University researchers have created a drug delivery method using silicon nanoneedles with diameters 100 times smaller than a mosquito’s needle. These nanoneedles are embedded in a stretchable and translucent elastomer patch that can be worn on the skin to deliver exact doses directly into cells.
Credit: Purdue image

Minimally invasive patch delivers exact doses directly into cells, lessens pain, toxicity. Purdue University researchers have developed a new flexible and translucent base for silicon nanoneedle patches to deliver exact doses of biomolecules directly into cells and expand observational opportunities.

“This means that eight or nine silicon nanoneedles can be injected into a single cell without significantly damaging a cell...