By Andrew Williams •
November 3, 2009
Researchers at the Georgia Institute of Technology have made a three-dimensional photovoltaic solar cell around an optical fibre, a revolutionary new approach that could pave the way for a new generation of hyper-flexible solar systems.
According to team-leader Professor Zhong Lin Wang, “Using this technology, we can make photovoltaic generators that are foldable, concealed and mobile. Optical fibre could conduct sunlight into a building’s walls where the nanostructures would convert it to electricity. This is truly a three dimensional solar cell.”
By Mariella Moon •
August 31, 2009
A team of scientists from the University of Texas at Austin has developed a type of spray-on solar cells that could lower costs of production dramatically.
The concept of spray-on solar cells is by no means a new approach – the Australian National University has been working on one for the past three years. The University of Texas at Austin team led by engineer Brian Korgel uses copper indium gallium selenide (CIGS) as the main component for the ink used to manufacture the solar cell. This nanoparticle ink allows manufacturers to completely deviate from the conventional expensive method of solar cell production. Using this ink, solar cells can be made through a roll-to-roll printing process, similar to how newspapers are printed. Plastic substrate and stainless steel are a couple of possible bases for the printing.
By Lisa Wojnovich •
June 5, 2009
One of the biggest problems with solar cells currently on the market is that they are extremely easy to break. Companies intent on manufacturing any sort of solar powered products have to find solutions, and few have yet been perfect. Hoping to change this trend, Dupont recently announced the launch of two new lines of encapsulants specifically designed to contend with the trials inherent in manufacturing photovoltaic products.
By Michael Ratliff •
March 12, 2009
A recent discovery shatters the notion that one photon can only excite one electron. Researchers from the joint SLAC-Stanford Pulse Institute for Ultrafast Energy Science are on the move to boost solar cell efficiencies by confirming that a single photon can indeed excite more than one electron in a quantum dot. Are we at the cross roads of a new solar age?
By Jerry James Stone •
February 23, 2009
Energizer Bunny beware!
Knut Karlsen has created a solar-cell charging battery prototype using flexible solar cells from IFE and some older NiMH rechargeable batteries. The batteries are being coined as “SunCast” batteries and work much like a trickle charger.
By Ariel Schwartz •
February 19, 2009
Mitsubishi has broken its own photovoltaic cell efficiency record in a seeming attempt to ensure domination over the solar energy industry. The company has improved the conversion efficiency rate of its PV cells to 18.9 percent— only a slight increase from the previous record of 18.6 percent.
By Lisa Wojnovich •
January 31, 2009
Imagine plugging your laptop into its case to charge the battery. Or your cell phone into a beach umbrella. Or simply slipping it into your shirt pocket. Konarka, a next generation solar energy startup, is currently promoting and raising R&D capital for its Power Plastic line, and while these solar cells, printed on sheets of plastic similar to camera film, can’t quite manage that last one, plans are definitely on the drawing board.
By Ariel Schwartz •
January 20, 2009
A new year, a new solar cell efficiency record is broken. German researchers at the Fraunhofer Institute for Solar Energy Systems have built a solar cell with 41.1% efficiency, besting the previous record of 40.8% efficiency set by the US National Renewable Energy Laboratory. The three-layer gallium-indium-phosphide, gallium-indium-arsenide, and germanium cell broke the record when researchers concentrated sunlight onto it 454 times.
By Andrew Williams •
October 26, 2008
Scientists at the University of New South Wales have set a new world record by creating the first silicon solar cell to achieve 25% efficiency.
Team leader, Prof. Martin Green of the university’s ARC Photovoltaic Centre of Excellence, says their world-beating solar cell is now a massive six percent more efficient than the next best technology. The record edges the current generation of solar cell technology closer to the theoretical limit of 29% efficiency.
By Andrew Williams •
October 19, 2008
Scientists have created a new material that could dramatically increase the efficiency of solar cells, by literally capturing every color of the rainbow.
Whereas other materials only catch a small range of light frequencies, and therefore only a small fraction of the potential energy, the new invention is capable of absorbing all the energy contained in sunlight. According to team leader, Prof. Malcolm Chisolm, “There are other such hybrids out there, but the advantage of our material is that we can cover the entire range of the solar spectrum.”
By Andrew Williams •
October 5, 2008
An Australian scientist has developed a new method of manufacturing solar cells using nothing more than some nail polish remover, a pizza oven and a standard inkjet printer.
The iJET technique is so easy and cheap to carry out that it could revolutionize access to solar technology in the developing world.
In a recent radio interview (audio), Nicole Kuepper, a 23 year-old PhD student at the University of New South Wales, explained the process.
