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Helmholtz-Zentrum Berlin (HZB) Hahn-Meitner-Platz 1 14109 Berlin, Germany http://www.helmholtz-berlin.de
Contact Ms Antonia Rötger +49 30 806243733
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Helmholtz-Zentrum Berlin (HZB)

Verborgene Talente: Mit Bleistift und Papier Wärme in Strom umwandeln

(PresseBox) (Berlin, )
Thermoelektrische Materialien können Wärmeunterschiede zur Stromerzeugung nutzen. Nun gibt es eine preiswerte und umweltfreundliche Lösung, um sie mit einfachsten Zutaten herzustellen: Ein normaler Bleistift, Kopierpapier und ein leitfähiger Kunststofflack reichen aus, um eine Temperaturdifferenz über den thermoelektrischen Effekt in Strom umzuwandeln. Dies hat nun ein Team am Helmholtz-Zentrum Berlin demonstriert.

Der thermoelektrische Effekt ist keine Neuigkeit, sondern wurde vor fast 200 Jahren von Thomas J. Seebeck entdeckt: Bringt man zwei unterschiedliche Metalle zusammen, dann kann eine elektrische Spannung entstehen, wenn ein Metall wärmer ist als das andere. Über diesen Effekt lässt sich Restwärme teilweise in elektrische Energie umwandeln. Restwärme entsteht
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The publisher indicated in each case (see company info by clicking on image/title or company info in the right-hand column) is solely responsible for the stories above, the event or job offer shown and for the image and audio material displayed. As a rule, the publisher is also the author of the texts and the attached image, audio and information material. The use of information published here is generally free of charge for personal information and editorial processing. Please clarify any copyright issues with the stated publisher before further use. In case of publication, please send a specimen copy to service@pressebox.de.