Diamond nanowires with a diameter of only three atoms have been created
American scientists have learned how to obtain nanowires with a conductive center with a diameter of three atoms and “diamond” insulation.
“We showed how you can get tiny, conductive filaments of the smallest possible diameter, which are almost completely self-assembling,” says one of the authors of the work. “The process is simple, it is a synthesis“ in one bowl ”, it is enough to mix the ingredients together and get the result in half an hour.” A promising technology Nicholas Melosh of Stanford University and colleagues at the US Department of Energy s SLAC National Accelerator Laboratory describe in an article published by the journal Nature Materials…
Scientists used a suspension of adamantane crystals – arranged in a hexagonal diamond lattice with ten carbon atoms. It is known that they actively “stick” to each other under the action of van der Waals forces. The authors added sulfur to them and placed them in a solution containing copper, which already binds to sulfur on its own. As a result, due to self-assembly of adamantane, such structures were connected to each other, forming the thinnest nanowires with a conducting “core” of sulfur and copper atoms – and an insulating carbon, “diamond” shell.
According to the authors, this is not their first experience in obtaining such “nanowires”. By combining different metals — such as zinc or cadmium, silver or iron — and different substitutes for adamantane — such as carboranes — structures with different properties can be synthesized to suit different applications. Some are suitable for lighting, others for capturing the energy of the sun, and others for piezoelectricity. “It s easy to imagine clothing generating energy from these wires,” says one scientist.
During the week
Two-dimensional superhard body created
An international team of physicists has succeeded in creating a two-dimensional superhard body. It possesses the properties of both a solid and a superfluid.
Rotating detonation engine tested in space
The Japanese Space Agency has announced the first successful launch of a new engine design using ring detonation waves in space.
It became known what awaits the Il-112V program
According to the data presented, in 2022, two new Il-112V aircraft, No. 103 and No. 104, will be connected to flight tests. The first flight prototype of the aircraft crashed yesterday.
Russian forests are constantly burning, but their biomass has grown at a record. How did this happen and what follows from this?
Our forests are on fire again, media reported. In appearance, everything is clear: the forest is dying and will soon die completely. If not for one “but”: according to scientific papers in peer-reviewed journals, the biomass of our forests has grown by almost 39% over 26 years. And this is an absolutely inconceivable, record increase – which, of course, does not negate the damage from fires for settlements. Who to believe: the smoke of fires from the pages of the media or scientists? And why is the authorities fight against fires likely to make the situation worse? Let s try to figure it out.
The relationship between appearance and income level was revealed.
Tall men and slender women were more successful financially.
Russian archaeologists have found two exotic treasures
One of them sheds light on the little-known pre-Slavic history of the place, which became the center of the formation of Russian statehood.
Elon Musk is right: no fusion is needed. The future we won t have
Before mass thermonuclear power engineering 20 years – and always will be 20 years. This simple joke itself became old 20 years ago. Society is upset that thermonuclear still cannot be brought to an industrial level. And only Elon Musk believes that a thermonuclear reactor is not needed at all. A careful analysis shows that he is right. Even if all the technical problems of thermonuclear energy are miraculously resolved, it will have no chance of ousting competitors. How did it happen, and what then will save humanity from the energy crisis?
In South Africa, discovered the remains of the oldest archaea on Earth
Fossils over 3.4 billion years old may be the remnants of archaeal microbes that lived and produced methane from hydrothermal vents at the bottom of the fossil sea.
The space industry told who could drill a hole in the Soyuz MS-09 spacecraft
According to a senior TASS source in the space industry, the hole in the skin of the Soyuz MS-09 was drilled in zero gravity. At the same time, the alleged culprit did not know the device s structure.