News tagged with zinc oxide

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Spinning CDs to clean sewage water

Audio CDs, all the rage in the '90s, seem increasingly obsolete in a world of MP3 files and iPods, leaving many music lovers with the question of what to do with their extensive compact disk collections. ...

Sep 23, 2013
4.6 / 5 (17) 5 | with audio podcast

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

Selenium makes more efficient solar cells

Call it the anti-sunscreen. That's more or less the description of what many solar energy researchers would like to find -- light-catching substances that could be added to photovoltaic materials in order ...

Aug 03, 2010
4.5 / 5 (16) 6 | with audio podcast

Push-Button Logic on the Nanoscale

(PhysOrg.com) -- Circuits that can perform logic operations at the push of a button are a dime-a-dozen these days, but a breakthrough by researchers in the USA has meant they can be smaller and simpler than ...

Aug 05, 2010
5 / 5 (10) 3 | with audio podcast