Nano planet

Controlling the charge state of organic molecule quantum dots in a 2D nanoarray

ScienceDaily.com: Nanotechnology News - 15 октября, 2019 - 17:33
Researchers have fabricated a self-assembled, carbon-based nanofilm where the charge state (ie, electronically neutral or positive) can be controlled at the level of individual molecules. Molecular self-assembly on a metal results in a high-density, 2D, organic quantum-dot array with electric-field-controllable charge state, with the organic molecules used as 'nano-sized building blocks' in fabrication of functional nanomaterials. Achieved densities are an order of magnitude larger than conventional inorganic systems.
Категории: Nano planet

Quantum dots that light up TVs could be used for brain research

Nanowerk.com - 15 октября, 2019 - 14:31
While many people love colorful photos of landscapes, flowers or rainbows, some biomedical researchers treasure vivid images on a much smaller scale - as tiny as one-thousandth the width of a human hair.
Категории: Nano planet

Chains of atoms move at lightning speed inside metals

Nanowerk.com - 15 октября, 2019 - 10:25
A phenomenon that has previously been seen when researchers simulate the properties of planet cores at extreme pressures has now also been observed in pure titanium at atmospheric pressure. Chains of atoms dash around at lightning speeds inside the solid material.
Категории: Nano planet

Metal-organic framework based technology instantly identifies airborne chemicals

Nanowerk.com - 15 октября, 2019 - 10:00
The new prototype device is portable and suitable for rapid deployment by agencies to identify airborne hazards, such as from tiny gas molecules like sulphur dioxide. It can also identify larger compound molecules such as benzene, known to be harmful to human health.
Категории: Nano planet

Scientists pinpoint cause of harmful dendrites and whiskers in lithium batteries

Nanowerk.com - 14 октября, 2019 - 19:06
Scientists have uncovered a root cause of the growth of needle-like structures -- known as dendrites and whiskers -- that plague lithium batteries, sometimes causing a short circuit, failure, or even a fire. Such defects are a major factor holding back the batteries from even more widespread use and further improvement.
Категории: Nano planet

Unique sticky particles formed by harnessing chaos

Nanowerk.com - 14 октября, 2019 - 18:37
New research shows that unique materials with distinct properties akin to those of gecko feet can be created by harnessing liquid-driven chaos to produce soft polymer microparticles with hierarchical branching on the micro- and nanoscale.
Категории: Nano planet

Overlap allows nanoparticles to enhance light-based detection

Nanowerk.com - 14 октября, 2019 - 18:31
Scientists have found revealing information where light from a molecule meets light from a nanoparticle.
Категории: Nano planet

The nano-guitar string that plays itself

ScienceDaily.com: Nanotechnology News - 14 октября, 2019 - 18:17
Scientists have created a nano-electronic circuit which vibrates without any external force. Just as a guitar string vibrates when plucked, the wire -- 100,000 times thinner than a guitar string -- vibrates when forced into motion by an oscillating voltage. The surprise came when they repeated the experiment without the forcing voltage. Under the right conditions, the wire oscillated of its own accord. The nano-guitar string was playing itself.
Категории: Nano planet

Unique sticky particles formed by harnessing chaos

ScienceDaily.com: Nanotechnology News - 14 октября, 2019 - 18:17
New research shows that unique materials with distinct properties akin to those of gecko feet - the ability to stick to just about any surface -- can be created by harnessing liquid-driven chaos to produce soft polymer microparticles with hierarchical branching on the micro- and nanoscale.
Категории: Nano planet

Scientists reveal mechanism of electron charge exchange in molecules

ScienceDaily.com: Nanotechnology News - 14 октября, 2019 - 18:17
Through a new scanning transmission electron microscopy method, researchers are able to observe electron distribution between atoms and molecules and uncover clues to the origins of ferroelectricity, the capacity of certain crystals to possess spontaneous electric polarization that can be switched by the application of an electric field. The research also revealed the mechanism of charge transfer between two materials.
Категории: Nano planet

How to control friction in topological insulators

Nanowerk.com - 14 октября, 2019 - 17:33
Physicists have begun investigating how topological insulators react to friction. Their experiment shows that the heat generated through friction is significantly lower than in conventional materials.
Категории: Nano planet

The nano-guitar string that plays itself

Nanowerk.com - 14 октября, 2019 - 17:27
Researchers have created a nano-electronic circuit which vibrates without any external force.
Категории: Nano planet

Scientists reveal mechanism of electron charge exchange in molecules

Nanowerk.com - 14 октября, 2019 - 17:15
Breakthrough has applications in data storage, energy conversion, quantum computing.
Категории: Nano planet

Protein-folded DNA nanostructures offer a new building material for biotechnology

Nanowerk.com - 14 октября, 2019 - 17:08
By using proteins that naturally bind and arrange DNA inside cells, scientists has devised a plug-and-play strategy for building stable, custom-designed nanostructures.
Категории: Nano planet

Surface smarts

Nanowerk.com - 14 октября, 2019 - 16:59
Nanostructures, microreactors, and printable electronics inspire many new applications in functional surfaces.
Категории: Nano planet

Super light dampers for low tones

Nanowerk.com - 14 октября, 2019 - 16:51
A team of Empa acoustic researchers has built macroscopic crystal structures that use internal rotation to attenuate the propagation of waves. The method makes it possible to build very light and stiff materials that can also 'swallow' low frequencies very well.
Категории: Nano planet

Controlling the charge state of organic molecule quantum dots in a 2-D nanoarray

Nanowerk.com - 14 октября, 2019 - 15:00
Molecular self-assembly on a metal results in high-density 2D organic (carbon-based) quantum dot array with electric-field-controllable charge state.
Категории: Nano planet

New design strategy can help improve layered superconducting materials

Nanowerk.com - 12 октября, 2019 - 09:19
Modified multi-layered bismuth superconductor for higher critical temperatures.
Категории: Nano planet

Creating 2D heterostructures for future electronics

ScienceDaily.com: Nanotechnology News - 11 октября, 2019 - 23:53
New research integrates nanomaterials into heterostructures, an important step toward creating nanoelectronics.
Категории: Nano planet

Nanoscale manipulation of light leads to exciting new advancement

ScienceDaily.com: Nanotechnology News - 11 октября, 2019 - 22:53
Controlling the interactions between light and matter has been a long-standing ambition for scientists seeking to develop and advance numerous technologies that are fundamental to society. With the boom of nanotechnology in recent years, the nanoscale manipulation of light has become both, a promising pathway to continue this advancement, as well as a unique challenge due to new behaviors that appear when the dimensions of structures become comparable to the wavelength of light.
Категории: Nano planet