Pop music makes solar cells produce more electricity
2013-11-12 0:00

By James Urquhart | NewScientist



They really are picking up Good Vibrations. Some solar cells convert sunlight into electricity more efficiently when loud music is played to them as long as it is pop rather than classical.

Traditional silicon-based solar cells convert sunlight into electricity efficiently, but they can be awkward to work with and expensive to produce. So Steve Dunn at Queen Mary University in London and James Durrant at Imperial College London have been experimenting with zinc oxide, which is much cheaper and can be made into thin, flexible films. The only drawback is that its efficiency is just 1.2 per cent, a small fraction of what silicon is capable of.

To improve this, Dunn and Durrant took advantage of another of zinc oxides properties. Nanoscale rods of the material wobble in response to mechanical stress such as the vibrations produced by sound and generate an electric field.

"We tried our initial tests with various types of music, including pop, rock and classical," says Dunn. Rock and pop were the most effective, perhaps because they have a wider range of frequencies. Using a signal generator to produce precisely measured sounds similar to ambient noise they saw a 50 per cent increase in efficiency, rising from 1.2 per cent without sound to 1.8 per cent with sound (Advanced Materials, DOI: 10.1002/adma.201303304).

The discovery could lead to the development of zinc-oxide solar arrays that can be deployed in noisy public places next to busy roads, for example.

[...]

Read the full article at: newscientist.com



Related Articles
Listening to Mozart doubles survival rates after a heart transplant. Enya? No effect.
Archaeoacoustics: The Sound of Ancient Megalithic Structures
Our Ancestors, the Acoustical Engineers
Sound waves levitate and mix floating drops of liquid
Neuroscientists prove ultrasound can be tweaked to stimulate different sensations
Sonic Art German Audio-Visual Artist Makes Pictures from Sound Waves
Resonance - Beings of Frequency
Worlds Loneliest Whale Sings At The Wrong Frequency
Ancient Maya Temples Were Giant Loudspeakers?


Latest News from our Front Page

Better Identification of Viking Corpses Reveals: Half of the Warriors Were Female
2015-04-25 4:52
Shieldmaidens are not a myth! A recent archaeological discovery has shattered the stereotype of exclusively male Viking warriors sailing out to war while their long-suffering wives wait at home with baby Vikings. (We knew it! We always knew it.) Plus, some other findings are challenging that whole “rape and pillage” thing, too. Researchers at the University of Western Australia decided ...
Off Your Knees, Germany! Ernst Zundel 1983 - 2003
2015-04-25 1:15
For more information on the holocaust, how the war was forced upon Germany, and the REAL victims of the second world war see: http://gblt.webs.com/Real_Holocaust.htm http://web.archive.org/web/20130806074314/http://www.666blacksun.org/ http://www.zundelsite.org/
IRS Drops Attack For Six Years – No Evidence of Jurisdiction
2015-04-24 20:29
A big congrats to a friend I’ve been working with for several years, he stood up to the predators commonly called the “IRS” and they dropped their attack. Thanks also for providing me with the proof below. The criminals called the “IRS” initiated an attack claiming my friend was required to file six tax returns, or explain how he made ...
Into Eternity - Finland's 100,000 Year Massive Underground Spent Nuclear Fuel Program
2015-04-24 20:49
Into Eternity is a documentary about a deep geological repository for nuclear waste. The concept of long-term underground storage for radioactive waste has been explored since the 1950s. The inner part of the Russian doll-like storage canisters is to be composed of copper. Hence in the case of Onkalo it is tightly linked to experiments on copper corrosion in running ...
SPLC Accuses Oath Keepers of Inciting “Armed Confrontation” Over Sugar Pine Mine
2015-04-24 20:22
The Southern Poverty Law Center has accused Oath Keepers of inciting an armed confrontation with BLM authorities over the Sugar Pine Mine dispute in Oregon, despite the fact that the organization has explicitly stated that it is not promoting armed confrontation with the feds. In an article provocatively posted on the organization’s ‘Hatewatch’ section entitled Oath Keepers Descend Upon Oregon with ...
More News »