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Solar Cell

Two-faced solar cells boost yields by up to 50 percent

Israeli photovoltaics developer bSolar has developed a double-sided solar cell it claims can boost the energy yields of solar panels by up to 50 percent when installed vertically, or by between 10 and 30 percent in more typical installations. The "bifacial" cells rely on a back surface field (BSF) of boron rather than aluminum, which bSolar claims not only allows for an open rear face but also increases the efficiency at the front of the solar panel.  Read More

Using what they call the 'nanoscale sandwich' technique, researchers have created ultra-th...

We certainly hear a lot about solar cells that are able to convert larger and larger percentages of the sun’s energy into electricity. That’s all very well and good, but if those more-efficient solar cells are too expensive, they will still ultimately prove impractical for everyday use. Researchers from North Carolina State University, however, have found a way of creating “ultra-thin” solar cells that should create just as much electricity as their thicker siblings, but at a lower cost.  Read More

An atomic-force microscope image of a layer of single-walled carbon nanotubes deposited on...

Researchers at MIT have developed a new type of photovoltaic cell made with carbon nanotubes that captures solar energy in the near-infrared region of the spectrum, which conventional silicon solar cells don’t. The new design means solar cell efficiency could be greatly increased, boosting the chances to make solar power a more popular source of energy.  Read More

Scientists have successfully used gallium indium phosphide solar cells to generate electri...

Although solar cells are proving indispensable for powering things such as electronic sensors on dry land, sensors located underwater have typically had to rely on batteries, or electricity piped in from photovoltaic panels situated above the surface. That could be changing, however, as scientists from the U.S. Naval Research Laboratory have recently developed functioning underwater solar cells.  Read More

The solar-powered Son-X Octavia attaches to any swing and gives audio cues to encourage ki...

It's hard to believe how many classic children's toys are getting modern makeovers these days - from the Etch A Sketch to toy helicopters to footballs - and now it looks like even the playground swing set is getting a slight upgrade with the Son-X Octavia. When attached to any swing, the Son-X will play different sound bites depending on how high or long a child swings, encouraging them to go higher.  Read More

A new, stable dye-sensitized solar cell developed at Northwestern University promises to b...

Solar power is up there as the quintessential clean energy and there’s a race worldwide to develop better solar cells to overcome current challenges related to cell efficiency, manufacturing costs, durability and materials, among other things. One of the latest developments in the sector comes from Northwestern University where researchers have developed a stable dye-sensitized solar cell that may one day prove cheaper than silicon-based cells.  Read More

A new efficiency record of 8.6 percent for graphene solar cells using graphene doped with ...

Doping graphene with trifluoromethanesulfonyl-amide (TFSA) has enabled researchers at the University of Florida (UF) to set a new efficiency record for graphene solar cells. While the record-breaking efficiency of 8.6 percent is well short of the efficiencies seen in other types of solar cells, it is a big improvement over previous graphene solar cells that saw efficiencies ranging up to 2.9 percent. The development provides hope for cheaper, durable graphene solar cells in the future.  Read More

A nanowire sporting tendrils of nanoparticles, which greatly add to its surface area

Higher-density batteries, more efficient thin-film solar cells, and better catalysts may all soon be possible, thanks to a new technique that allows nanowires to be “decorated” with nanoparticles. Using the novel technology, scientists from Stanford University have been able to festoon the outside surfaces of nanowires with intricate chains of metal oxide or noble metal nanoparticles, thereby drastically boosting the effective surface area of the nanowires. Other researchers have previously tried to achieve the same end result, but apparently never with such success.  Read More

Heliatek has set a world record efficiency with its latest organic solar technology

German solar technology specialist Heliatek has set a new benchmark for the efficiency of organic solar cells. In independent tests, a new world record efficiency of 10.7 percent was achieved for the company's latest tandem organic photovoltaic (OPV) cells ... and 15 percent may be just a few years away.  Read More

The liquid solar cells comprising solar nanocrystal arounf four nanometers in size applied...

Scientists at the University of Southern California (USC) have developed technology to cheaply produce stable liquid solar cells that can be painted or printed onto clear surfaces. The technology relies on solar nanocrystals that are around four nanometers in size - meaning you could fit more than 250 billion on the head of a pin. Their size allows them to be suspended in a liquid solution so they could be printed like a newspaper. The downside, commercialization of this technology is still years away.  Read More

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