Sentences with phrase «of superlattices»

In superlattice structures, ballistic phonon transport across the whole thickness of the superlattices implies phase coherence.

Following that success, the team inserted different types of ammonium molecules with various sizes and symmetries into a series of 2D materials to create a broad class of superlattices.

This new class of superlattices alternates 2D atomic crystal sheets that are interspaced with molecules of varying shapes and sizes.

Metamaterials are artificial nanofabricated constructs whose optical properties arise from the physical structure of their superlattices rather than their chemical composition.

This new class of superlattice structures has tailorable electronic properties for potential technological applications and further scientific studies.»

For example, while one layer of this new kind of superlattice can allow a fast flow of electrons through it, the other type of layer can act as an insulator.

The ability of these superlattice stacks to separate electrons and holes was first predicted in 2000 by Kaspar's colleague Dr. Scott Chambers, but no practical applications were envisioned at the time.

Now, when light strikes the surface of the superlattice, the interfaces are such that they drive the excited electrons to the hematite and the holes to the chromium oxide.

Not exact matches

Controlling the self - assembly of nanoparticles into superlattices is an important approach to build functional materials.

Taking child's play with building blocks to a whole new level - the nanometer scale - scientists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory have constructed 3D «superlattice» multicomponent nanoparticle arrays where the arrangement of particles is driven by the shape of the tiny building blocks.

«The aggregates are arranged in orderly superlattice structures, which is in stark contrast to the prevailing view that the adsorption of gas molecules by MOFs occurs stochastically.»

A beam of light shined through the superlattice of this zero - index metamaterial was unaffected, as if it had passed through a vacuum.

Northwestern University researchers have developed a new method to precisely arrange nanoparticles of different sizes and shapes in two and three dimensions, resulting in optically active superlattices.

The researchers used a combination of numerical simulations and optical spectroscopy techniques to identify particular nanoparticle superlattices that absorb specific wavelengths of visible light.

An artist's concept of two kinds of monolayer atomic crystal molecular superlattices.

Most importantly, the new method easily yields superlattices with tens, hundreds or even thousands of alternating layers, which is not yet possible with other approaches.

Such superlattices can form the basis for improved and new classes of electronic and optoelectronic devices.

A research team led by UCLA scientists and engineers has developed a method to make new kinds of artificial «superlattices» — materials composed of alternating layers of ultra-thin «two - dimensional» sheets, which are only one or a few atoms thick.

«A new class of two - dimensional materials: New kinds of «superlattices» could lead to improvements in electronics, from transistors to LEDs.»

The images below the schematic are (left to right): a reconstructed cryo - EM density map of the tetrahedron, a caged particle shown in a negative - staining TEM image, and a diamond superlattice shown at high magnification with cryo - STEM.

As Liu explained, «Building diamond superlattices from nano - and micro-scale particles by means of self - assembly has proven remarkably difficult.

UCLA researchers develop a new class of two - dimensional materials: New kinds of «superlattices» could lead to improvements in electronics, from transistors to LEDs March 11th, 2018

When mixed and annealed, the tetrahedral arrays formed superlattices with long - range order where the positions of the gold nanoparticles mimics the arrangement of carbon atoms in a lattice of diamond, but at a scale about 100 times larger.

The same issue of Science features another approach to engineering superlattices using DNA nanotechnology: «Diamond family of nanoparticle superlattices» [abstract].

An article based on the research, «Oscillatory Noncollinear Magnetism Induced by Interfacial Charge Transfer in Superlattices Composed of Metallic Oxides,» appeared in Physical Review X in November.

Creating a superlattice by placing graphene on boron nitride may allow control of electron motion in graphene and make graphene electronics practical.

Photoelectrochemical properties of model corundum and perovskite superlattices and pn junctions

A research team led by UCLA scientists and engineers has developed a method to make new kinds of artificial «superlattices» — materials comprised of alternating layers of ultra-thin «two - dimensional» sheets, which are only one or a few atoms thick.

Superlattices are currently built by manually stacking the ultrathin layers on top of each other.

The new method could also yield superlattices with thousands of alternating layers, which is not possible using traditional approaches.

This is an artist's concept of two kinds of monolayer atomic crystal molecular superlattices.