Latest Hybrid solar cell Stories

2014-01-22 10:27:34

Photovoltaic energy conversion offers one of the best means for the future of renewable energy in the world. The efficiency of solar cells depends heavily upon the light-absorbing materials they use. Photovoltaic systems based on lead halide perovskite are a new, revolutionary type of device with efficiencies currently exceeding 16%. However, a detailed description of how these solar cells turn light into electrical current is still lacking. Publishing in Nature Photonics, scientists from...

2013-01-28 11:54:59

Geometric pattern maximizes time light is trapped in solar cell The sun´s energy is virtually limitless, but harnessing its electricity with today´s single-crystal silicon solar cells is extremely expensive – 10 times pricier than coal, according to some estimates. Organic solar cells – polymer solar cells that use organic materials to absorb light and convert it into electricity – could be a solution, but current designs suffer because polymers have...

Berkeley Lab's Advanced Light Source Uncovers New Path To More Efficient Organic Solar Cells
2013-01-07 12:42:39

DOE/Lawrence Berkeley National Laboratory Why are efficient and affordable solar cells so highly coveted? Volume. The amount of solar energy lighting up Earth's land mass every year is nearly 3,000 times the total amount of annual human energy use. But to compete with energy from fossil fuels, photovoltaic devices must convert sunlight to electricity with a certain measure of efficiency. For polymer-based organic photovoltaic cells, which are far less expensive to manufacture than...

How Solvent Mixtures Affect Organic Solar Cell Structure Revealed
2012-10-04 15:54:25

Controlling “mixing” between acceptor and donor layers, or solar cell domains, in polymer-based solar cells could increase their efficiency, according to a team of researchers that included physicists from North Carolina State University. Their findings shed light on the inner workings of these solar cells, and could lead to further improvements in efficiency. Polymer-based solar cells consist of two domains, known as the acceptor and the donor layers. Excitons, the energy...

Organic Solar Cells One Step Closer To Success
2012-06-15 13:24:53

Brett Smith for redOrbit.com Organic solar cells have long been a promising alternative to conventional solar cells, but their low efficiency, low stability, and low strength have kept them from widespread commercial use. Senior chemist Lin Chen of the U.S. Department of Energy´s (DOE) Argonne National Laboratory hopes to change that by focusing on a key component of the cells, the exciton. According to Chen, excitons are considered a sort of “quasiparticle,” because...

New Solar Cells Shine With Potential
2012-05-24 11:34:04

Today´s solar cells have several limitations, including high production costs, low efficiency and durability, and reliance on scarce materials for production. Now, a group of Northwestern University researchers say they have developed a new solar cell that minimizes these problems. The device uses a Grätzel cell, a promising low-cost and environmentally friendly solar cell with a significant disadvantage: it leaks. The dye-sensitized cell's electrolyte is made of an...

New Solar Cell Grabs More Of The Sun's Energy
2012-02-09 04:24:13

New solar cells could increase the maximum efficiency of solar panels by over 25%, according to scientists from the University of Cambridge. Scientists from the Cavendish Laboratory, the University's Department of Physics, have developed a novel type of solar cell which could harvest energy from the sun much more efficiently than traditional designs. The research, published Feb 8 in the journal Nano Letters, could dramatically improve the amount of useful energy created by solar panels....

2011-08-16 23:18:40

Plasmonic technique helps enhance power conversion by up to 20 percent In the world of solar energy, organic photovoltaic solar cells have a wide range of potential applications, but they are still considered an upstart. While these carbon-based cells, which use organic polymers or small molecules as semiconductors, are much thinner and less expensive to produce than conventional solar cells made with inorganic silicon wafers, they still lag behind in their ability to efficiently convert...

Word of the Day
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.