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Current issue

ELEKTRO 8-9/2017 was released on September 5th 2017. Its digital version will be available on September 5th 2017.

Topic: 59th International engineering fair in Brno; Electrical engineering in industry

Main Article
Fuel cells
Renaissance of synchronous reluctance motors
Actuator design working with electromagnetic field

SVĚTLO (Light) 5/2017 was released on September 18th 2017. Its digital version will be available on September 18th 2017.

Luminaires and luminous apparatuses
MAYBE STYLE introducing LED design luminaires of German producer Lightnet
TREVOS – new luminaires for industry and offices
How many types of LED panels produces MODUS?
Intelligent LED luminaire RENO PROFI

Interiors lighting
The light in indoor flat interior – questions and answers

New plastic material begins to oscillate spontaneously in sunlight

06.07.2016 | Eindhoven University of Technology | www.tue.nl

The researchers from Eindhoven University of Technology and the Humboldt University in Berlin present this material ­– the first that moves spontaneously under the influence of daylight. According to the researchers, this pliable plastic is suitable as a self-cleaning surface, for example for solar cells.

Materials that move all by themselves under the influence of light – this phenomenon has been known for a number of years. However, since the source tends to be ultraviolet light, the required intensity can damage the material. The challenge was to find a material that behaves in this way in visible light, preferably unprocessed sunlight. The researchers from Eindhoven and Berlin have now succeeded in producing a thin polymer layer containing light-sensitive molecules (azo-dyes). Lying in sunlight, the thin film begins to oscillate spontaneously and irregularly.

New unique material moves in sunlight

One of the main possibilities for using the material is as a self-cleaning surface. A surface that vibrates in the sun makes it difficult for sand and dust to stick to it. Self-cleaning solar panels in the desert where there are no water supplies could be an option. But the researchers believe there is a whole range of other possible applications.

Read more at Eindhoven University of Technology

Image Credit: Eindhoven University of Technology

-jk-