Crystallography: Towards controlled dislocationsMon, 20 Oct 2014 10:53:31 EDT
Scientists have used atomic-resolution Z-contrast imaging and X-ray spectroscopy in a scanning transmission electron microscope to explore dislocations in the binary II-VI semiconductor CdTe, commercially used in thin-film photovoltaics. The results may lead to eventual improvement in the conversion efficiency of CdTe solar cells. These novel insights into atomically resolved chemical structure of dislocations have potential for understanding many more defect-based phenomena. Balancing renewable energy costs and optimizing energy mixMon, 13 Oct 2014 09:04:47 EDT
Increasing reliance on renewable energies is the way to achieve greater carbon dioxide emission sustainability and energy independence. As such energies are yet only available intermittently and energy cannot be stored easily, most countries aim to combine several energy sources. Scientists have now come up with an open source simulation method to calculate the actual cost of relying on a combination of electricity sources. 2014 Nobel Prize in Physics: Invention of efficient blue light-emitting diodesTue, 07 Oct 2014 07:17:41 EDT
The 2014 Nobel Prize in Physics has been awarded to Isamu Akasaki, of Meijo University in Nagoya and Nagoya University, Japan; Hiroshi Amano, of Nagoya University, Japan; and Shuji Nakamura of the University of California, Santa Barbara, CA, USA "for the invention of efficient blue light-emitting diodes which has enabled bright and energy-saving white light sources." Low-carbon energy future is clean, feasibleMon, 06 Oct 2014 15:21:26 EDT
A future where electricity comes mostly from low-carbon sources is not only feasible in terms of material demand, but will significantly reduce air pollution, a study says. Batteries included: A solar cell that stores its own powerFri, 03 Oct 2014 06:43:36 EDT
Is it a solar cell? Or a rechargeable battery? Actually, the patent-pending device is both: the world’s first solar battery. Scientists have succeeding in combining a battery and a solar cell into one hybrid device.