Nanodraadjes maken zonnecellen efficiënter

AMSTERDAM – Met behulp van een nanodraadje kan een zonnecel vijftien keer efficiënter worden.

Een afbeelding van een zonnecelDat melden wetenschappers van het Niels Bohr Institut in Denemarken en het Zwitserse Ecole Polytechnique Fédérale de Lausanne in het blad Nature Phonotics.

Door de bijzondere kenmerken van het kristal galliumarsenide in nanodraadjes-vorm kan de zonlichtintensiviteit veel groter worden.

Resonanties

De nanodraadjes kunnen zonnestralen in een heel klein deel van het kristal concentreren. Doordat de diameter kleiner is dan de golflengte van het zonlicht, kunnen resonanties ontstaan.

Door een soort ‘meetrillen’ wordt de intensiteit van het licht in en rond de nanodraadjes groter. De wetenschappers denken dat de resultaten van de nanodraadjes de weg uitstippelen naar de derde generatie zonnecellen. 

Lees hier het complete artikel van de wetenschappers

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Foto copyright: Rogilbert

13 gedachten over “Nanodraadjes maken zonnecellen efficiënter

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