We Continue the Work of Those
Who Were the First.

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Current issue

ELEKTRO 7/2018 was released on June 27th 2018. Its digital version will be available on July 27th 2018.

Topic: Cables, conductors and cable engineering; Tools, equipment and accessories for work with cables

Main Article
Parametrization of circuit models of Li-accumulators for electromobility
Smart Cities (part 3 – volume 1)

SVĚTLO (Light) 4/2018 was released on July 30th 2018. Its digital version will be available on August 31th 2018.

Refreshing our memory
Eccentric luminaires of René Roubíček from the years1965 till 1977
Bases of photometry – 1st part
Great personage of Czech science of times after Battle at Bílá hora: doctor, naturalist, philosopher and physicist Jan Marek Marci from Kronland

Optical radiation effects and use
The light and circadian rhythms

UVA physicists paving way for wider use of new solar cell materials

22.10.2016 | University of Virginia | news.virginia.edu

Despite the potential for powering the world with energy from the sun ­– the most abundant source of renewable energy – only about 1 percent of the world’s energy production currently comes through solar cell technology. That’s because solar cells are expensive to produce and are susceptible to efficiency reductions over time.

For this reason, scientists continue to seek new solar cell materials that will overcome these deficiencies. One of the most promising is a class of materials discovered in 2009: hybrid organic-inorganic perovskites, or HOIPs. These are extremely lightweight and flexible materials that are inexpensive to produce, compared to traditional silicon-based cells. At 22 percent (or better) efficiency at converting energy from the sun into electricity, they are approaching the 25 percent energy-producing efficiency of silicon cells.

New material for solar cells

By microscopically probing the materials using neutron-scattering experiments and computer simulations, scientists and engineers at the University of Virginia, with colleagues at the NIST Center for Neutron Research, the Oak Ridge National Laboratory and Cornell University have discovered ways to markedly expand the stable range of the desired structure for the solar cell during temperature changes. The results could potentially revolutionize solar cell technology by speeding the process of designing solar cell materials that are both efficient and stable over a wide range of temperatures, while remaining inexpensive to produce in large quantities.

Read more at University of Virginia

Image Credit: University of Virginia

-jk-