Latest solar cells Stories

OPV Cells With High Electric Potential For Portable Electronics
2012-10-11 13:04:17

A new breakthrough in solar technology means portable electronic devices such as e-book readers could soon be re-charged on the move in low light levels and partial shading. Scientists from the University of Warwick, in collaboration with spin-out company Molecular Solar, have created an organic solar cell that generates a sufficiently high voltage to recharge a lithium-ion battery directly, without the need to connect multiple individual cells in series. Modules of these high voltage cells...

Black Silicon Used To Make Solar Cells
2012-10-09 16:01:15

Solar cells convert three-quarters of the energy contained in the Sun℠s spectrum into electricity — yet the infrared spectrum is entirely lost in standard solar cells. In contrast, black silicon solar cells are specifi cally designed to absorb this part of the Sun℠s spectrum — and researchers have recently succeeded in doubling their overall efficiency. The Sun blazes down from a deep blue sky — and rooftop solar cells convert this solar energy into...

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...

2012-09-27 22:18:45

Using amorphous and monocristalline silicon together, EPFL team achieved an astounding 22.4 percent efficiency In the medium term, an investment of only $2500 in photovoltaic cells would suffice to provide more than enough electricity for the consumption of a four people household. This promising scenario has been made possible by the innovations accomplished by EPFL's Institute of Microengineering in Neuchatel. The team of prof. Christophe Ballif, director of the Photovoltaics Laboratory...

2012-06-22 11:46:14

ZnSnP2, an absorber material for solar cells, transitions from an ordered to a disordered structure at high temperatures. Researchers from University College London and the University of Bath have proposed taking advantage of this structural change to design high-efficiency solar absorbers. The team used theoretical calculations to investigate the electronic structure of both phases, and predicted a significant difference in the bandgap between the ordered and fully disordered materials....

Nanotech Jump For Solar Cells
2012-06-22 05:18:43

Solar power cells are limited by the wavelengths of light they can absorb from the sun. Ideally a solar cell would absorb every wavelength, but to date the goal has not been reached. Silicon, today's photovoltaic industry standard, is limited in the wavelength range it can 'see' and absorb. A possible solution has been found in indium gallium nitride. Using this material, scientists can tune the material's response so it collects solar energy from a variety of wavelengths. The more...

Word of the Day
  • In the phrase to out-herod Herod, to be more violent than Herod (as represented in the old mystery plays); hence, to exceed in any excess of evil.
Herod refers to 'Herod the Great,' a Roman client king and 'a madman who murdered his own family and a great many rabbis.' According to the OED, the term is 'chiefly with allusion to Shakespeare's use' in Hamlet.