News tagged with substrates

A new way to make sheets of graphene

Graphene's promise as a material for new kinds of electronic devices, among other uses, has led researchers around the world to study the material in search of new applications. But one of the biggest limitations ...

May 23, 2014
4.9 / 5 (26) 1

New solar-cell design based on dots and wires

Using exotic particles called quantum dots as the basis for a photovoltaic cell is not a new idea, but attempts to make such devices have not yet achieved sufficiently high efficiency in converting sunlight ...

Mar 25, 2013
5 / 5 (4) 1 | with audio podcast

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 ...

Mar 16, 2012 report
4.2 / 5 (26) 24 | with audio podcast