News tagged with efficiency
Related topics: solar cells
Carbon dioxide emissions reach record high
Emissions of heat-trapping carbon dioxide reached an all-time high last year, further reducing the chances that the world could avoid a dangerous rise in global average temperature by 2020, according to the International ...
May 29, 2012 |
3.8 / 5 (6) |
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Sound increases the efficiency of boiling
Scientists at the Georgia Institute of Technology achieved a 17-percent increase in boiling efficiency by using an acoustic field to enhance heat transfer. The acoustic field does this by efficiently removing vapor bubbles ...
May 24, 2012 |
5 / 5 (3) |
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Fuel efficiency tops wish list of new-car buyers
Fuel efficiency was the most important car-purchase factor for 37 percent of those surveyed in the new Consumer Reports National Research Center car-owner survey.
Technology / Energy & Green Tech
May 28, 2012 |
5 / 5 (1) |
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Dopant gives graphene solar cells highest efficiency yet
(Phys.org) -- By taking advantage of graphene’s favorable electrical and optical properties, and then adding an organic dopant, researchers have achieved the highest power conversion efficiency yet for ...
May 21, 2012 |
4.8 / 5 (11) |
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New inexpensive, environmentally friendly solar cell shines with potential
(Phys.org) -- The limitations of conventional and current solar cells include high production cost, low operating efficiency and durability, and many cells rely on toxic and scarce materials. Northwestern University researchers ...
Technology / Energy & Green Tech
May 23, 2012 |
4.8 / 5 (13) |
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Graetzel cells are implanted in an iPad keyboard
Dye-sensitized solar cells (DSSC) from EPFL enter the public market. Logitech chose this technology to power its new flagship product.
May 29, 2012 |
2.7 / 5 (3) |
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Two stopped light pulses interact with each other
(Phys.org) -- For the first time, physicists have experimentally demonstrated the interaction of two motionless light pulses. Because the stopped light pulses have a long interaction time, it increases the ...
May 08, 2012 |
4.1 / 5 (16) |
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LED's efficiency exceeds 100%
(PhysOrg.com) -- For the first time, researchers have demonstrated that an LED can emit more optical power than the electrical power it consumes. Although scientifically intriguing, the results won’t ...
Mar 05, 2012 |
4.4 / 5 (65) |
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Quantum dots brighten the future of lighting
(Phys.org) -- With the age of the incandescent light bulb fading rapidly, the holy grail of the lighting industry is to develop a highly efficient form of solid-state lighting that produces high quality white ...
Nanotechnology / Nanomaterials
May 08, 2012 |
4.8 / 5 (8) |
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Mechanical motion rectifier leads to better energy harvesting
(Phys.org) -- Mechanical energy is all around us, whether in the form of a vehicle's vibrations, ocean waves, or vibrating train tracks. However, much of this energy is irregular and oscillatory - for example, road bumps ...
Apr 25, 2012 |
4.9 / 5 (9) |
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Researchers develop technique to keep cool high-power semiconductor devices used in wireless applications, electric cars
A group of researchers at the University of California, Riverside Bourns College of Engineering have developed a technique to keep cool a semiconductor material used in everything from traffic lights to electric cars.
May 08, 2012 |
4.8 / 5 (6) |
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Electronic congestion in the microchips of the future
(Phys.org) -- Electrons within some materials can stick together like cars on a traffic jam. Swiss researchers studying promising materials for the future of electronics have been able to highlight this phenomenon
May 16, 2012 |
5 / 5 (3) |
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Nanotechnology for solar energy conversion systems
EU researchers extensively characterised the self-organisation of nanotubes and developed novel compositions particularly appropriate to solar energy conversion applications.
Nanotechnology / Nanomaterials
May 25, 2012 |
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Removing 'black sheep' could make Internet run more efficiently
(PhysOrg.com) -- Whether dealing with Internet traffic or vehicle traffic, congestion can slow everything down. One team of researchers working on improving network transmission efficiency has developed a ...
Technology / Computer Sciences
Feb 28, 2012 |
5 / 5 (14) |
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Rational design can improve hydrogen fuel cell efficiency
(PhysOrg.com) -- Hydrogen fuel cells, in which the chemical energy of hydrogen is converted into electricity, offer the potential for a wide variety of applications, especially in transportation and power ...
Feb 29, 2012 |
4.4 / 5 (12) |
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