News tagged with zinc oxide

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Quantum dot LEDs get brighter, more efficient

(Phys.org) -- While quantum dot-based light-emitting diodes (QLEDs) are not made of organic materials, they share many of the same advantages as organic LEDs (OLEDs). For instance, both QLEDs and OLEDs outshine ...

Apr 20, 2012 feature
4.6 / 5 (16) 11 | with audio podcast

Big beats bolster solar cell efficiency

(Phys.org) —Playing pop and rock music improves the performance of solar cells, according to new research from scientists at Queen Mary University of London and Imperial College London.

Nov 06, 2013
4.6 / 5 (18) 3 | with audio podcast

'Seeing' through paint

(PhysOrg.com) -- When light passes through materials that we consider opaque, such as paint, biological tissue, fabric and paper, it is scattered in such a complex way that an image does not come through. ...

Mar 18, 2010 feature
4.7 / 5 (24) 7 | with audio podcast

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

Brain process takes paper shape

A paper-based device that mimics the electrochemical signalling in the human brain has been created by a group of researchers from China.

Feb 12, 2014
4.4 / 5 (8) 0 | with audio podcast

High-efficiency zinc-air battery developed

Stanford University scientists have developed an advanced zinc-air battery with higher catalytic activity and durability than similar batteries made with costly platinum and iridium catalysts. The results, ...

May 29, 2013
4.6 / 5 (32) 11 | with audio podcast