News tagged with band gap

Damaging graphene to create a band gap

(PhysOrg.com) -- "Graphene offers a lot of interesting potential applications for nanoelectronics," Florian Banhart tells PhysOrg.com, "but there is no band gap. This is a well-known problem. Without the band gap, switch ...

Nov 22, 2010 feature
3.2 / 5 (9) 2 | with audio podcast

Toward a better understanding of bilayer graphene

(PhysOrg.com) -- "Graphene is a very exciting material with a number of interesting possibilities, including for use in electronic devices," Pablo Jarillo-Herrero tells PhysOrg.com. "However, all graphene system ...

Oct 26, 2010 feature
4.6 / 5 (7) 1 | with audio podcast

Nanoribbons for graphene transistors

In the recent issue of Nature, European scientists from Empa and the Max Planck Institute for Polymer Research report how they have managed for the first time to grow graphene ribbons that are just a few ...

Jul 21, 2010
4.8 / 5 (14) 0 | with audio podcast

New alloys key to efficient energy and lighting

A recent advance by Arizona State University researchers in developing nanowires could lead to more efficient photovoltaic cells for generating energy from sunlight, and to better light-emitting diodes (LEDs) that could replace ...

Mar 22, 2010
4 / 5 (6) 0 | with audio podcast

Researchers make graphene hybrid

Rice University researchers have found a way to stitch graphene and hexagonal boron nitride (h-BN) into a two-dimensional quilt that offers new paths of exploration for materials scientists.

Mar 01, 2010
4.6 / 5 (10) 1 | with audio podcast

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 ...

Feb 18, 2010 feature
4.2 / 5 (30) 1 | with audio podcast