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Current issue

ELEKTRO 1/2019 was released on January 16th 2019. Its digital version will be available on February 12th 2019.

Topic: Electrotechnology; Materials for electrical engineering; Wiring material

Main Article
Electrically conductive adhesives for electrical engineering
Smart Cities (part 6)

SVĚTLO (Light) 6/2018 was released on December 3rd 2018. Its digital version will be available on January 4th 2019.

Luminaires and light apparatuses
Modular floodlights Siteco
Decorative luminaire PRESBETON H-E-X from the integral series town equipment
LED luminaires ESALITE – revolution in sphere of industrial lighting

Daylight
About median illumination by daylight
Professional colloquium Daylight in practice

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

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