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photovoltaics in Medical Dictionary

Shunt

... In electronics, a shunt is a device which allows electric current to pass around another point in the circuit. The term is also widely used in photovoltaics to describe an unwanted short circuit between the front and back... In medicine, a shunt is a hole or passage which moves, or allows movement ...
photovoltaics in Biological News

New renewables to power 40 per cent of global electricity demand by 2050

... With adequate financial and political support, renewable energy technologies like wind and photovoltaics could supply 40 percent of the world's electricity by 2050, according to findings from the International Scientific Congress "Climate Change: Global R...

Getting into hot water

...allation is just two years. This compares very well to a photovoltaic system used for electricity generation if it were only being used to heat water. photovoltaics have a payback period of several at least a decade and sometimes double that. The solar hot water system used in the study is installed at the Jija...

ORNL nanotechnologies big winners in DOE call

...dots. Particles produced by certain strains of thermophilic anaerobic bacteria could lead to the development of materials useful for energy-efficient photovoltaics and an array of other applications. Using a natural fermentation process, lead researcher Lonnie Love can control the size and shape of nanoscale magn...

MIT, Eni announce energy research partnership

...important part of this initiative." The Eni-MITEI Solar Frontiers Research Program will include six areas of focus: Nano-structured thin film photovoltaics Luminescent solar concentrators Self-assembling photovoltaic materials Water splitting Materials for solar energy capture and storage ...
photovoltaics in Biological Technology

New research expected to improve laser devices and make photovoltaics more efficient

University of Chicago scientists have induced electrons in the nanocrystals of semiconductors to cool more slowly by forcing them into a smaller volume. This has the potential to improve satellite communications and the generation of solar power. "Slowing down the cooling of these electronsin th...

Are photovoltaics a power supplement, full replacement or neither?

The global demand for all kinds of energy is growing. That is a statement you hear within many business reports and some people are taking a proactive approach in rearranging their power sources. This is from Energy Photovoltaics, Inc. : The $3.5 billion photovoltaic module market is projecte...

NIST scientists study how to stack the deck for organic solar power

...ages over traditional rigid silicon cells. Organic photovoltaics start out as a kind of ink that can be applied to ...til the technology improves. Even the best organic photovoltaics convert less than 6 percent of light into electric...es a powerful new measurement strategy for organic photovoltaics that reveals ways to control how they form. In the...

Nanopillars promise cheap, efficient, flexible solar cells

...h only marginal effect on performance and no degradation of performance after repeated bending. "There are lots of ways to improve 3-D nanopillar photovoltaics for higher performance, and ways to simplify the fabrication process as well, but the method is already hugely promising as a way to lower the cost of...

DuPont Innovation Addressing Major Global Market Trends

...ize in emerging markets, Kullman said DuPont is anticipating increased demand for renewable energy sources by developing products and technologies for photovoltaics -- with sales expected over $1 billion by 2012 -- and advanced biofuels, like biobutanol and cellulosic ethanol. DuPont is also focused on developing...

Quantum dots and nanomaterials: Ingredients for better lighting and more reliable power

...pes and varieties as designers can imagine," he says. Jabbour, who teaches in ASU's School of Materials, is doing his research through the Advanced photovoltaics Center, which he directs. The center is part of the Arizona Institute for Renewable Energy at ASU. Jabbour also is director of optoelectronics researc...

Cheaper materials could be key to low-cost solar cells

...s, which appeared online Feb. 13 in Environmental Science & Technology , examines the two most pressing challenges to large-scale deployment of solar photovoltaics as the world moves toward a carbon neutral future: cost per kilowatt hour and total resource abundance. The UC Berkeley study evaluated 23 promising s...

DuPont Well Positioned for Long-Term Growth in Agricultural Productivity, Safety and Security, Renewable Energy

...ics and advanced biofuels, such as cellulosic ethanol -- a next generation biofuel produced from non-food sources. Holliday said DuPont's sales into photovoltaics within five years will be over $1 billion -- up from about $300 million today. He noted that DuPont and Genencor, a division of Danisco A/S, announced...

Nanowires may boost solar cell efficiency, UC San Diego engineers say

...published this new work on polymer/nanowire hybrid photovoltaics in February 2008. If you provide electrons wit...hat could serve as foundations for next-generation photovoltaics that conform to the curved surfaces like rooftops,...ching their electrode. Todays thin-film polymer photovoltaics do not provide freed electrons with a direct path ...

New funding to charge energy research at UCL and the London Centre for Nanotechnology

...oping solar cells on organic substrates that can be made over large surfaces. Unlike the glass-like traditional solar cells made from silicon, organic photovoltaics can be flexible, resembling plastic materials. Being flexible, they can easily be applied on uneven surfaces, e.g. it may be possible to wrap a buildi...
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