News tagged with mobile electrons

Can graphene nanoribbons replace silicon?

(PhysOrg.com) -- "Graphene has been the subject of intense focus and research for a few years now," Philip Kim tells PhysOrg.com. "There are researchers that feel that it is possible that graphene could replac ...

Nanotechnology / Nanophysics

created Feb 18, 2010 | popularity 4.2 / 5 (29) | comments 1 | with audio podcast feature

How Perfect Can Graphene Be?

(PhysOrg.com) -- Physicists have investigated the purest graphene to date, and have found that the material possesses unprecedented high electronic quality. The discovery has raised the bar for this relatively ...

Nanotechnology / Nanomaterials

created Oct 13, 2009 | popularity 4.5 / 5 (31) | comments 5 feature

Graphene battery demonstrated to power an LED

(PhysOrg.com) -- Scientists in Hong Kong have reported, in ArXiv, their experiments to make a graphene battery that they say generates an electrical current by drawing on the ambient thermal energy in the sol ...

Nanotechnology / Nanomaterials

created Mar 16, 2012 | popularity 4.1 / 5 (25) | comments 24 | with audio podcast report

Barrier to faster graphene devices identified and suppressed

These days graphene is the rock star of materials science, but it has an Achilles heel: It is exceptionally sensitive to its electrical environment.

Nanotechnology / Nanomaterials

created Mar 13, 2012 | popularity 4.7 / 5 (19) | comments 5 | with audio podcast

New path to flex and stretch electronics: Researchers develop solution-based fabrication technique

(PhysOrg.com) -- Imprinting electronic circuitry on backplanes that are both flexible and stretchable promises to revolutionize a number of industries and make "smart devices" nearly ubiquitous. Among the ...

Nanotechnology / Nanophysics

created Dec 13, 2011 | popularity 5 / 5 (4) | comments 0 | with audio podcast

Making a light-harvesting antenna from scratch

(PhysOrg.com) -- Sometimes when people talk about solar energy, they tacitly assume that we're stuck with some version of the silicon solar cell and its technical and cost limitations. Not so.

Chemistry / Materials Science

created Nov 29, 2011 | popularity 4.8 / 5 (15) | comments 1 | with audio podcast

Graphene ink created for ink-jet printing of electronic components

(PhysOrg.com) -- A group of UK scientists has created a graphene ink that can be used to ink-jet print electronic devices such as thin film transistors.

Nanotechnology / Nanomaterials

created Nov 25, 2011 | popularity 4.8 / 5 (15) | comments 6 | with audio podcast report

At small scales, tug-of-war between electrons can lead to magnetism under surprising circumstances

(PhysOrg.com) -- At the smallest scales, magnetism may not work quite the way scientists expected, according to a recent paper in Physical Review Letters by Rafal Oszwaldowski and Igor Zutic of the Univer ...

Physics / General Physics

created Jun 29, 2011 | popularity 5 / 5 (15) | comments 3 | with audio podcast

Scientists find simple way to produce graphene

(PhysOrg.com) -- Scientists at Northern Illinois University say they have discovered a simple method for producing high yields of graphene, a highly touted carbon nanostructure that some believe could replace ...

Nanotechnology / Nanomaterials

created Jun 20, 2011 | popularity 4.9 / 5 (21) | comments 14 | with audio podcast

New inorganic semiconductor layers hold promise for solar energy

(PhysOrg.com) -- A team of researchers from the University of Chicago and the U.S. Department of Energy's (DOE) Argonne National Laboratory has demonstrated a method that could produce cheaper semiconductor ...

Nanotechnology / Nanomaterials

created Jun 02, 2011 | popularity 4.8 / 5 (6) | comments 1 | with audio podcast

Boron nitride is a promising path to practical graphene devices

(PhysOrg.com) -- Graphene is a two-dimensional honeycomb of carbon, just one atom thick, whose intriguing electronic properties include very high electron mobility and very low resistivity. Graphene is so ...

Nanotechnology / Nanomaterials

created May 30, 2011 | popularity 4.6 / 5 (8) | comments 3 | with audio podcast

Real-world graphene devices may have a bumpy ride

(PhysOrg.com) -- Electronics researchers love graphene. A two-dimensional sheet of carbon one atom thick, graphene is like a superhighway for electrons, which rocket through the material with 100 times the mobility they have ...

Physics / Condensed Matter

created Jan 19, 2011 | popularity 5 / 5 (4) | comments 0 | with audio podcast

'Keyless keyboards' coming for mobile computing (w/ Video)

(PhysOrg.com) -- A new Israeli company, SnapKeys, has developed a keyless keyboard that promises to make mobile computing on tablets or devices such as Apple's iPad simpler. Instead of an on-screen keyboard ...

Technology / Hi Tech & Innovation

created Sep 20, 2010 | popularity 4.5 / 5 (12) | comments 2 | with audio podcast report

With support, graphene still a superior thermal conductor

The single-atom thick material graphene maintains its high thermal conductivity when supported by a substrate, a critical step to advancing the material from a laboratory phenomenon to a useful component in ...

Nanotechnology / Nanomaterials

created Apr 08, 2010 | popularity 4.3 / 5 (8) | comments 0 | with audio podcast

The Asus New Folding E-Book Reader

(PhysOrg.com) -- Asus has demonstrated a prototype of an e-book reader it is developing. Unlike its competitors, the device resembles a normal book, having two touch screens that will fold up.

Electronics / Consumer & Gadgets

created Sep 09, 2009 | popularity 4.7 / 5 (15) | comments 9 weblog