Sentences with phrase «with electron flow»

The borders between these crystals interfere with electron flow and have so far hampered development of electronic devices based on carbon.

«In this tunnel junction, holes from the silicon solar cell recombine with electrons flowing from the perovskite solar cell using quantum mechanical tunneling,» said Jonathan Mailoa, a graduate student at MIT and co-author of the report, in an email.

Not exact matches

While electrons, with their negative charge, flow from one pole of the battery to the other (thus providing power for devices), positive ions flow the other way, through an electrolyte, or ion conductor, sandwiched between those poles, to complete the flow.

In an ordinary superconductor, electrons, which carry a spin of 1/2, pair up and flow uninhibited with the help of vibrations in the atomic structure.

Rather like electrons flowing without electrical resistance, at temperatures close to absolute zero, some atoms turn superfluid, flowing with no friction or physical resistance.

The effect and its brethren — with names like the spin Hall effect, the spin Seebeck effect and the spin Peltier effect — allow scientists to create flows of electron spins, or spin currents.

When these nanocomposites were incorporated into leaf chloroplasts of living plants, the electron flow associated with photosynthesis was enhanced by 30 %.

Incorporation of CNTs enhanced electron flow associated with photosynthesis by 49 % in extracted chloroplasts and by 30 % in leaves of living plants, and incorporation of cerium oxide nanoparticles (nanoceria) into extracted chloroplasts significantly reduced concentrations of superoxide, a compound that is toxic to plants.

The gold strips act as gates: A voltage applied to them stops or starts the flow of electrons through the main nanowire with an unprecedented combination of speed and precision.

Subsystem interacts with subsystem as electrons surge and flow through microchips that operate according to the dictates of semiconductor physics.

Steve: And there are people who are out there, instead of hacking into the actual electrons that are flowing, and reading what you are up to that way, they are in an office building a block away with the telescope looking through the office window of somebody else and just looking at the computer screen to read what they are up to.

Hydrogen atoms are formed in such devices only when electrons flow into a fluid where they can combine with hydrogen ions; those atoms in turn combine with each other to create hydrogen gas.

Is Si - III a metal with freely travelling electrons, or a semiconductor with a discrete energy gap that can «stop» the flow?

From a carbon nanotube, Dutch researchers have crafted a transistor that toggles on and off with the flow of a single electron.

Last year, along with researchers led by Brookhaven / Columbia University School of Engineering physicist Simon Billinge, the team established the first firm link between the disappearance of the density wave within the pseudogap phase and the emergence, as stated by Davis, of «universally free - flowing electrons needed for unrestricted superconductivity» [see: https://www.bnl.gov/newsroom/news.php?a=11637].

«This is the first time an experiment has directly linked the disappearance of the density waves and their associated nanoscale crystal distortions with the emergence of universally free - flowing electrons needed for unrestricted superconductivity,» said lead author J.C. Séamus Davis, a senior physicist and Director of DOE's Center for Emergent Superconductivity at Brookhaven Lab and also a professor at both Cornell University and the St. Andrews University in Scotland.

The magnetism is associated with the localization of electrons, whereas superconductivity is a state in which electrons are paired and can flow without resistance.

The work relies on a model system called a Kondo chain, where flowing electrons interact with local magnetic moments within a material.

This gave electrons on the surface of the material robust, «topologically protected» states, which allowed them to flow with next to no resistance.

In a conventional superconductor electrons with opposite spins are paired together so that a flow of electrons carries zero spin.

«With this discovery, instead of facing the challenge of how to use only the electrons on the surface of a material, now you can just cut the material open and you have light - like electrons flowing in three dimensions inside the materials,» said M. Zahid Hasan, a professor of physics at Princeton, who led the discovery.

They describe technology that would react the CO2 with water or other liquids and, with further processing, produce a flow of electrons that make up electric current.

Graphene is an extremely good conductor of electricity, as electrons flow through graphene with virtually no friction.

While the negative electrons flow out as usable current, the positive protons are drawn to the cathode, where they recombine with returning electrons and oxygen to produce water.

As the electrons flowed into the nickelate, it created a magnetization with a twisting pattern as in a helix.

The gases flow in currents through the sun, carrying electrons with them.

Included with clear directions for students and teachers as well as supporting documents and worksheets, this mini investigation allows students to discover concepts of flow of electrons, conductors, insulators, circuits and so much more!

Two groups of students, those who used real equipment and those who used a computer simulation that explicitly modeled electron flow, were compared in terms of their mastery of physics concepts and skills with real equipment.

As I mentioned above, this is not hard to understand if you look at heat transport as a diffusion phenomenon, i.e., as flow in accordance with the laws of probability from a region characterized by a higher concentration (of fast molecules or fast electrons) to one with a lower concentration.

The difference between AC and DC has to do with the direction in which the electrons flow.

Decay estimates of heat transfer to molten polymer flows in pipes with viscous dissipation, co-author Z.B. Zhang, Electron.