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Current issue

ELEKTRO 7/2019 was released on June 26th 2019. Its digital version will be available on July 26th 2019.

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

Main Article
Asset management and diagnostic needs in Industry 4.0

SVĚTLO (Light) 4/2019 was released on July 29th 2019. Its digital version will be available on August 29th 2019.

Lighting installations
Foxtrot controls new location of barmans
Dynamic illumination of Guardian Angels’ chapel in Sušice

Accessories of lighting installations
Safety, austerity and comfort with KNX
Worldwide first LED switching source with KNX interface from MEAN WELL producer
KNX – the system with future
Schmachtl – connector installation gesis

Unleashing perovskites’ potential for solar cells

08.02.2019 | MIT | www.mit.edu

Perovskites — a broad category of compounds that share a certain crystal structure — have attracted a great deal of attention as potential new solar-cell materials because of their low cost, flexibility, and relatively easy manufacturing process. But much remains unknown about the details of their structure and the effects of substituting different metals or other elements within the material.

Conventional solar cells made of silicon must be processed at temperatures above 1,400 degrees Celsius, using expensive equipment that limits their potential for production scaleup. In contrast, perovskites can be processed in a liquid solution at temperatures as low as 100 degrees, using inexpensive equipment. What’s more, perovskites can be deposited on a variety of substrates, including flexible plastics, enabling a variety of new uses that would be impossible with thicker, stiffer silicon wafers.

Perovskite solar cells

Now, researchers have been able to decipher a key aspect of the behavior of perovskites made with different formulations: With certain additives there is a kind of “sweet spot” where greater amounts will enhance performance and beyond which further amounts begin to degrade it.

Read more at MIT

Image Credit: Ken Richardson

-jk-