Search results for dopant

Superconductivity Nov 19, 2013

Infrared light fills a "gap" in iron-based superconductor research

(Phys.org) —Superconductors are a fascinating group of materials in which electrons can flow with almost zero resistance. They have the potential to revolutionize electronics and power distribution, but no existing superconductors ...

Nanomaterials Oct 31, 2013

New techniques produce cleanest graphene yet

Columbia Engineering researchers have experimentally demonstrated for the first time that it is possible to electrically contact an atomically thin two-dimensional (2D) material only along its one-dimensional (1D) edge, rather ...

Nanomaterials Oct 28, 2013

A noble yet simple way to synthesize new metal-free electrocatalysts for oxygen reduction reaction

A Korean research team from Ulsan National Institute of Science and Technology (UNIST), S. Korea, developed a high performance and stable metal-free electrocatalyst for ORR and the research work was published in a science ...

Hi Tech & Innovation Sep 19, 2013

Researchers report on hardware Trojans that are undetectable

(Phys.org) —Worries that the security of integrated circuits used in critical systems by the military and industry can be compromised are all the more real with the release of a research paper titled "Stealthy Dopant-Level ...

Energy & Green Tech Sep 6, 2013

Physicists find a compound to more efficiently convert waste heat to electrical power

Physicists at the University of Houston's physics department and the Texas Center for Superconductivity are working on an innovation that could boost vehicle mileage by 5 percent and power plant and industrial processing ...

Nanomaterials Aug 26, 2013

Size matters as nanocrystals go through phases

(Phys.org) —Understanding what happens to a material as it undergoes phase transformations – changes from a solid to a liquid to a gas or a plasma – is of fundamental scientific interest and critical for optimizing ...

General Physics Jul 17, 2013

The key to ion beams' polarisability

Polarisability determines the force with which an inhomogeneous external electric field acts on the ions of an ion beam. However, it can be quite tricky to obtain accurate values for this force. Now, two German theoretical ...

Nanomaterials Jul 16, 2013

Team uses carbon nanotubes for polarized-light detection

Using carpets of aligned carbon nanotubes, researchers from Rice University and Sandia National Laboratories have created a solid-state electronic device that is hardwired to detect polarized light across a broad swath of ...

Nanomaterials Jul 3, 2013

Antifreeze, cheap materials may lead to low-cost solar energy

A process combining some comparatively cheap materials and the same antifreeze that keeps an automobile radiator from freezing in cold weather may be the key to making solar cells that cost less and avoid toxic compounds, ...

Nanomaterials Jun 27, 2013

Exotic alloys for potential energy applications

The search for thermoelectrics, exotic materials that convert heat directly into electricity, has received a boost from researchers at the California Institute of Technology and the University of Tokyo, who have found the ...

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